{"title":"Physics \u0026 Astronomy","description":"\u003cp\u003eDesigns from the mathematics physicists and astronomers use: quasicrystals, Fourier analysis and the motion of the planets.\u003c\/p\u003e","products":[{"product_id":"conway-loops-womens-polo-dusk-starscape","title":"Conway Loops Women's Polo — Dusk Starscape","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. 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Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. 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Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). 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Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor late nights in the lab, cold observatory domes and long afternoons of reading, in a relaxed unisex cut.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex Sweatshirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e280 g loopback knit, 95% polyester and 5% spandex. Warm, with a little stretch.\u003c\/li\u003e\n\u003cli\u003eCrew neck, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or machine below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasured laid flat, in cm (inches); chest is armpit to armpit. 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Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeart.\u003c\/strong\u003e A handful of turning circles, each at its own speed, draw a heart.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67809413005446,"sku":"ZZ1516827-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67809413038214,"sku":"ZZ1516827-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67809413070982,"sku":"ZZ1516827-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67809413103750,"sku":"ZZ1516827-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67809413136518,"sku":"ZZ1516827-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Epicycle_Scribe_T-Shirt_-_Heart_213f99be-2dc2-4505-b085-b676cca67546.jpg?v=1793489446"},{"product_id":"conway-loops-tumbler-night-lilac","title":"Conway Loops Tumbler — Night Lilac","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. The tiles disappear, and loops and flowers with fivefold symmetry appear in their place.\u003c\/p\u003e\n\u003cp\u003eThis pattern shows just one of these arcs: its loops make five-petaled flowers and five-pointed stars, each colored by its size.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67812087988358,"sku":"SH10282268473545017-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Conway_Loops_Tumbler_Night_Lilac_-_front.jpg?v=1793392975"},{"product_id":"conway-loops-tumbler-dusk-starscape","title":"Conway Loops Tumbler — Dusk Starscape","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. The tiles disappear, and loops and flowers with fivefold symmetry appear in their place.\u003c\/p\u003e\n\u003cp\u003eThis pattern shows just one of these arcs: its loops make five-petaled flowers and five-pointed stars, each colored by its size.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67812088053894,"sku":"SH10282268215621924-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Conway_Loops_Tumbler_Dusk_Starscape_-_front.jpg?v=1793393016"},{"product_id":"conway-loops-tumbler-spring-lilac","title":"Conway Loops Tumbler — Spring Lilac","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. The tiles disappear, and loops and flowers with fivefold symmetry appear in their place.\u003c\/p\u003e\n\u003cp\u003eThis pattern shows just one of these arcs: its loops make five-petaled flowers and five-pointed stars, each colored by its size.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67812088316038,"sku":"SH10282267974509811-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Conway_Loops_Tumbler_Spring_Lilac_-_front.jpg?v=1793393048"},{"product_id":"ribbon-weaver-mens-golf-shirt-lilac","title":"Ribbon Weaver Men's Golf Shirt — Lilac","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Men’s Golf Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% polyester jersey: breathable, moisture-wicking and wrinkle-resistant.\u003c\/li\u003e\n\u003cli\u003eClassic collar, three-button placket, reinforced seams.\u003c\/li\u003e\n\u003cli\u003ePrinted on every panel: body, sleeves and collar.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). For 4XL measurements, email us. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e98 (38.6)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003ctd\u003e22 (8.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e71 (28.0)\u003c\/td\u003e\n\u003ctd\u003e22.5 (8.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e73 (28.7)\u003c\/td\u003e\n\u003ctd\u003e23 (9.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e122 (48.0)\u003c\/td\u003e\n\u003ctd\u003e76.5 (30.1)\u003c\/td\u003e\n\u003ctd\u003e24 (9.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e130 (51.2)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e25 (9.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e138 (54.3)\u003c\/td\u003e\n\u003ctd\u003e83.5 (32.9)\u003c\/td\u003e\n\u003ctd\u003e26 (10.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67812676960390,"sku":"SH10273042807523735-V39846","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67812676993158,"sku":"SH10273042807523735-V39847","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67812677025926,"sku":"SH10273042807523735-V39848","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67812677058694,"sku":"SH10273042807523735-V39849","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67812677091462,"sku":"SH10273042807523735-V39850","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67812677124230,"sku":"SH10273042807523735-V39851","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67812677156998,"sku":"SH10273042807523735-V39852","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Golf_Shirt_-_Lilac_17a10e48-7fa1-43aa-b518-28aa6e703b0f.jpg?v=1793489485"},{"product_id":"ribbon-weaver-mens-golf-shirt-lichen","title":"Ribbon Weaver Men's Golf Shirt — Lichen","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Men’s Golf Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% polyester jersey: breathable, moisture-wicking and wrinkle-resistant.\u003c\/li\u003e\n\u003cli\u003eClassic collar, three-button placket, reinforced seams.\u003c\/li\u003e\n\u003cli\u003ePrinted on every panel: body, sleeves and collar.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). For 4XL measurements, email us. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e98 (38.6)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003ctd\u003e22 (8.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e71 (28.0)\u003c\/td\u003e\n\u003ctd\u003e22.5 (8.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e73 (28.7)\u003c\/td\u003e\n\u003ctd\u003e23 (9.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e122 (48.0)\u003c\/td\u003e\n\u003ctd\u003e76.5 (30.1)\u003c\/td\u003e\n\u003ctd\u003e24 (9.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e130 (51.2)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e25 (9.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e138 (54.3)\u003c\/td\u003e\n\u003ctd\u003e83.5 (32.9)\u003c\/td\u003e\n\u003ctd\u003e26 (10.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67812678303878,"sku":"SH10273019565590766-V39846","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67812678336646,"sku":"SH10273019565590766-V39847","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67812678369414,"sku":"SH10273019565590766-V39848","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67812678402182,"sku":"SH10273019565590766-V39849","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67812678434950,"sku":"SH10273019565590766-V39850","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67812678467718,"sku":"SH10273019565590766-V39851","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67812678500486,"sku":"SH10273019565590766-V39852","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Golf_Shirt_-_Lichen_0d01ff59-7eb2-4ecf-94e6-a57aa519c3de.jpg?v=1793489495"},{"product_id":"ribbon-weaver-mens-golf-shirt-grackle","title":"Ribbon Weaver Men's Golf Shirt — Grackle","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Men’s Golf Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% polyester jersey: breathable, moisture-wicking and wrinkle-resistant.\u003c\/li\u003e\n\u003cli\u003eClassic collar, three-button placket, reinforced seams.\u003c\/li\u003e\n\u003cli\u003ePrinted on every panel: body, sleeves and collar.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). For 4XL measurements, email us. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e98 (38.6)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003ctd\u003e22 (8.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e71 (28.0)\u003c\/td\u003e\n\u003ctd\u003e22.5 (8.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e73 (28.7)\u003c\/td\u003e\n\u003ctd\u003e23 (9.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e122 (48.0)\u003c\/td\u003e\n\u003ctd\u003e76.5 (30.1)\u003c\/td\u003e\n\u003ctd\u003e24 (9.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e130 (51.2)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e25 (9.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e138 (54.3)\u003c\/td\u003e\n\u003ctd\u003e83.5 (32.9)\u003c\/td\u003e\n\u003ctd\u003e26 (10.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67812678533254,"sku":"SH10272965864741481-V39846","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67812678566022,"sku":"SH10272965864741481-V39847","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67812678598790,"sku":"SH10272965864741481-V39848","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67812678631558,"sku":"SH10272965864741481-V39849","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67812678664326,"sku":"SH10272965864741481-V39850","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67812678697094,"sku":"SH10272965864741481-V39851","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67812678729862,"sku":"SH10272965864741481-V39852","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Golf_Shirt_-_Grackle_a42eac8f-6615-4a1b-bcae-5bb80839a10a.jpg?v=1793489505"},{"product_id":"ribbon-weaver-mens-golf-shirt-blue-horizon","title":"Ribbon Weaver Men's Golf Shirt — Blue Horizon","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Men’s Golf Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% polyester jersey: breathable, moisture-wicking and wrinkle-resistant.\u003c\/li\u003e\n\u003cli\u003eClassic collar, three-button placket, reinforced seams.\u003c\/li\u003e\n\u003cli\u003ePrinted on every panel: body, sleeves and collar.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). For 4XL measurements, email us. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e98 (38.6)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003ctd\u003e22 (8.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e71 (28.0)\u003c\/td\u003e\n\u003ctd\u003e22.5 (8.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e73 (28.7)\u003c\/td\u003e\n\u003ctd\u003e23 (9.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e122 (48.0)\u003c\/td\u003e\n\u003ctd\u003e76.5 (30.1)\u003c\/td\u003e\n\u003ctd\u003e24 (9.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e130 (51.2)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e25 (9.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e138 (54.3)\u003c\/td\u003e\n\u003ctd\u003e83.5 (32.9)\u003c\/td\u003e\n\u003ctd\u003e26 (10.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67812678795398,"sku":"SH07127522909358004-V39846","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67812678828166,"sku":"SH07127522909358004-V39847","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67812678860934,"sku":"SH07127522909358004-V39848","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67812678893702,"sku":"SH07127522909358004-V39849","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67812678926470,"sku":"SH07127522909358004-V39850","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67812678959238,"sku":"SH07127522909358004-V39851","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67812678992006,"sku":"SH07127522909358004-V39852","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Golf_Shirt_-_Blue_Horizon_923bbc45-2a48-4c14-9417-6f362706fbcc.jpg?v=1793489514"},{"product_id":"epicycle-scribe-ceramic-dish-star","title":"Epicycle Scribe Ceramic Dish: Star","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStar.\u003c\/strong\u003e The five-pointed star, approximately. To get the lines and points exact you'd need an infinite number of circles. This one has twenty-one, so the points are softly rounded and the lines wobble a little.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67829117616262,"sku":"SH10299285432290956-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/2aa6ef52fbedf1dc641971d1c4b38525.png?v=1793462211"},{"product_id":"epicycle-scribe-ceramic-dish-heart","title":"Epicycle Scribe Ceramic Dish: Heart","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeart.\u003c\/strong\u003e A handful of turning circles, each at its own speed, draw a heart.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67829117911174,"sku":"SH10299285255341854-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/f48bab8c905c0e915a5ef7ca0cd6d262.png?v=1793462227"},{"product_id":"epicycle-scribe-ceramic-dish-four-leaf-clover","title":"Epicycle Scribe Ceramic Dish: Four-Leaf Clover","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour-Leaf Clover.\u003c\/strong\u003e Four leaves, each traced by the same chain of turning circles.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67829118107782,"sku":"SH10299285037581269-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/cf28d9871a2f1f94b021bbef61f381da.png?v=1793462242"},{"product_id":"epicycle-scribe-ceramic-dish-butterfly","title":"Epicycle Scribe Ceramic Dish: Butterfly","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eButterfly.\u003c\/strong\u003e Temple Fay’s butterfly curve from 1989.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67829118337158,"sku":"SH10299284863854393-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/a00410f3519bb9259b688957ce82db05.png?v=1793462257"},{"product_id":"epicycle-scribe-ceramic-dish-lemniscate-infinity","title":"Epicycle Scribe Ceramic Dish: Lemniscate Infinity","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLemniscate Infinity.\u003c\/strong\u003e Jacob Bernoulli’s figure-eight from 1694, the curve behind the infinity sign.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67829118566534,"sku":"SH10299267244020171-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/f5c1f83ed1e73598551ca28628ff59c8.png?v=1793462272"},{"product_id":"fivefold-cotton-dress-shirt-rhombs-green","title":"Fivefold Cotton Dress Shirt: Rhombs — Green","description":"\u003cp\u003e\u003cstrong\u003eTwo diamonds that tile forever and never repeat.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIn the 1970s Roger Penrose found a pair of diamonds, one wide and one narrow, that cover a floor without gaps or end, but never fall into a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSome places have five-pointed stars, and others a star surrounded by a ring. These two diamonds create many different arrangements together, but overall, wide diamonds outnumber the narrow ones by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829737259142,"sku":"KK969931158101176320-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829737291910,"sku":"KK969931158101176320-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829737324678,"sku":"KK969931158101176320-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829737357446,"sku":"KK969931158101176320-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829737390214,"sku":"KK969931158101176320-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829737422982,"sku":"KK969931158101176320-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829737455750,"sku":"KK969931158101176320-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829737488518,"sku":"KK969931158101176320-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829737521286,"sku":"KK969931158101176320-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Dress_Shirt_-_Green_-_portrait.jpg?v=1793489524"},{"product_id":"fivefold-cotton-dress-shirt-rhombs-cream","title":"Fivefold Cotton Dress Shirt: Rhombs — Cream","description":"\u003cp\u003e\u003cstrong\u003eTwo diamonds that tile forever and never repeat.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIn the 1970s Roger Penrose found a pair of diamonds, one wide and one narrow, that cover a floor without gaps or end, but never fall into a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSome places have five-pointed stars, and others a star surrounded by a ring. These two diamonds create many different arrangements together, but overall, wide diamonds outnumber the narrow ones by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829737848966,"sku":"KK969930830923665408-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829737881734,"sku":"KK969930830923665408-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829737914502,"sku":"KK969930830923665408-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829737947270,"sku":"KK969930830923665408-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829737980038,"sku":"KK969930830923665408-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829738012806,"sku":"KK969930830923665408-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829738045574,"sku":"KK969930830923665408-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829738078342,"sku":"KK969930830923665408-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829738111110,"sku":"KK969930830923665408-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Dress_Shirt_-_Cream_-_portrait.jpg?v=1793489534"},{"product_id":"fivefold-cotton-dress-shirt-pentagons-white","title":"Fivefold Cotton Dress Shirt: Pentagons — White","description":"\u003cp\u003e\u003cstrong\u003ePenrose’s first tiling: pentagons, stars and diamonds.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFive pentagons fit around a sixth, with a gap. In 1974, Roger Penrose showed that if you fill those gaps with three more shapes, a five-pointed star, a ‘boat’ that is three-fifths of a star, and a thin diamond, the result covers the plane forever without repeating.\u003c\/p\u003e\n\u003cp\u003eThe process to generate a tiling is recursive: Split every pentagon into six smaller ones, fill the gaps by the same rule, and the whole tiling can rebuild itself one size smaller.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829738537094,"sku":"KK969930489633148928-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829738569862,"sku":"KK969930489633148928-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829738602630,"sku":"KK969930489633148928-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829738635398,"sku":"KK969930489633148928-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829738668166,"sku":"KK969930489633148928-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829738700934,"sku":"KK969930489633148928-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829738733702,"sku":"KK969930489633148928-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829738766470,"sku":"KK969930489633148928-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829738799238,"sku":"KK969930489633148928-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_P1_Dress_Shirt_-_White_-_portrait.jpg?v=1793489544"},{"product_id":"fivefold-cotton-dress-shirt-pentagons-berry","title":"Fivefold Cotton Dress Shirt: Pentagons — Berry","description":"\u003cp\u003e\u003cstrong\u003ePenrose’s first tiling: pentagons, stars and diamonds.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFive pentagons fit around a sixth, with a gap. In 1974, Roger Penrose showed that if you fill those gaps with three more shapes, a five-pointed star, a ‘boat’ that is three-fifths of a star, and a thin diamond, the result covers the plane forever without repeating.\u003c\/p\u003e\n\u003cp\u003eThe process to generate a tiling is recursive: Split every pentagon into six smaller ones, fill the gaps by the same rule, and the whole tiling can rebuild itself one size smaller.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829739192454,"sku":"KK969930133704511488-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829739225222,"sku":"KK969930133704511488-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829739257990,"sku":"KK969930133704511488-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829739290758,"sku":"KK969930133704511488-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829739323526,"sku":"KK969930133704511488-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829739356294,"sku":"KK969930133704511488-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829739389062,"sku":"KK969930133704511488-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829739421830,"sku":"KK969930133704511488-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829739454598,"sku":"KK969930133704511488-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_P1_Dress_Shirt_-_Plum_-_portrait.jpg?v=1793489554"},{"product_id":"fivefold-cotton-dress-shirt-pentagons-black","title":"Fivefold Cotton Dress Shirt: Pentagons — Black","description":"\u003cp\u003e\u003cstrong\u003ePenrose’s first tiling: pentagons, stars and diamonds.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFive pentagons fit around a sixth, with a gap. In 1974, Roger Penrose showed that if you fill those gaps with three more shapes, a five-pointed star, a ‘boat’ that is three-fifths of a star, and a thin diamond, the result covers the plane forever without repeating.\u003c\/p\u003e\n\u003cp\u003eThe process to generate a tiling is recursive: Split every pentagon into six smaller ones, fill the gaps by the same rule, and the whole tiling can rebuild itself one size smaller.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829740175494,"sku":"KK969929808554504192-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829740208262,"sku":"KK969929808554504192-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829740241030,"sku":"KK969929808554504192-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829740273798,"sku":"KK969929808554504192-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829740306566,"sku":"KK969929808554504192-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829740339334,"sku":"KK969929808554504192-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829740372102,"sku":"KK969929808554504192-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829740404870,"sku":"KK969929808554504192-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829740437638,"sku":"KK969929808554504192-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_P1_Dress_Shirt_-_Black_Teal_-_portrait.jpg?v=1793489564"},{"product_id":"fivefold-cotton-dress-shirt-kite-and-dart-white","title":"Fivefold Cotton Dress Shirt: Kite and Dart — White","description":"\u003cp\u003e\u003cstrong\u003eA kite and a dart, cut from one diamond in the golden ratio.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eTake a diamond and cut it along a line set by the golden ratio: the two pieces are a kite and a dart. Roger Penrose showed that, with a simple rule about which edges may meet, these two shapes cover the plane forever, without repeating as a whole.\u003c\/p\u003e\n\u003cp\u003eIn some places you can see stars: five darts pointing inward, and in others, suns: five kites in a ring. Through the pattern, these two shapes keep returning in new arrangements, but with a rhythm: the kites outnumber darts by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829740830854,"sku":"KK969929444203704320-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829740863622,"sku":"KK969929444203704320-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829740896390,"sku":"KK969929444203704320-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829740929158,"sku":"KK969929444203704320-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829740961926,"sku":"KK969929444203704320-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829740994694,"sku":"KK969929444203704320-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829741027462,"sku":"KK969929444203704320-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829741060230,"sku":"KK969929444203704320-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829741092998,"sku":"KK969929444203704320-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Kite_and_Dart_Dress_Shirt_-_White_-_portrait.jpg?v=1793489573"},{"product_id":"fivefold-cotton-dress-shirt-kite-and-dart-navy","title":"Fivefold Cotton Dress Shirt: Kite and Dart — Navy","description":"\u003cp\u003e\u003cstrong\u003eA kite and a dart, cut from one diamond in the golden ratio.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eTake a diamond and cut it along a line set by the golden ratio: the two pieces are a kite and a dart. Roger Penrose showed that, with a simple rule about which edges may meet, these two shapes cover the plane forever, without repeating as a whole.\u003c\/p\u003e\n\u003cp\u003eIn some places you can see stars: five darts pointing inward, and in others, suns: five kites in a ring. Through the pattern, these two shapes keep returning in new arrangements, but with a rhythm: the kites outnumber darts by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829744304262,"sku":"KK969927992660418560-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829744337030,"sku":"KK969927992660418560-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829744369798,"sku":"KK969927992660418560-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829744402566,"sku":"KK969927992660418560-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829744435334,"sku":"KK969927992660418560-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829744468102,"sku":"KK969927992660418560-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829744500870,"sku":"KK969927992660418560-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829744533638,"sku":"KK969927992660418560-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829744566406,"sku":"KK969927992660418560-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Kite_and_Dart_Dress_Shirt_-_Navy_-_portrait.jpg?v=1793489583"},{"product_id":"fivefold-cotton-dress-shirt-kite-and-dart-black","title":"Fivefold Cotton Dress Shirt: Kite and Dart — Black","description":"\u003cp\u003e\u003cstrong\u003eA kite and a dart, cut from one diamond in the golden ratio.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eTake a diamond and cut it along a line set by the golden ratio: the two pieces are a kite and a dart. Roger Penrose showed that, with a simple rule about which edges may meet, these two shapes cover the plane forever, without repeating as a whole.\u003c\/p\u003e\n\u003cp\u003eIn some places you can see stars: five darts pointing inward, and in others, suns: five kites in a ring. Through the pattern, these two shapes keep returning in new arrangements, but with a rhythm: the kites outnumber darts by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829745156230,"sku":"KK969927680900698112-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829745188998,"sku":"KK969927680900698112-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829745221766,"sku":"KK969927680900698112-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829745254534,"sku":"KK969927680900698112-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829745287302,"sku":"KK969927680900698112-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829745320070,"sku":"KK969927680900698112-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829745352838,"sku":"KK969927680900698112-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829745385606,"sku":"KK969927680900698112-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829745418374,"sku":"KK969927680900698112-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Kite_and_Dart_Dress_Shirt_-_Black_-_portrait.jpg?v=1793489594"},{"product_id":"fivefold-cotton-dress-shirt-rhombs-lilac","title":"Fivefold Cotton Dress Shirt: Rhombs — Lilac","description":"\u003cp\u003e\u003cstrong\u003eTwo diamonds that tile forever and never repeat.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIn the 1970s Roger Penrose found a pair of diamonds, one wide and one narrow, that cover a floor without gaps or end, but never fall into a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSome places have five-pointed stars, and others a star surrounded by a ring. These two diamonds create many different arrangements together, but overall, wide diamonds outnumber the narrow ones by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e108 (42.5)\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e126 (49.6)\u003c\/td\u003e\n\u003ctd\u003e56.5 (22.2)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e82 (32.3)\u003c\/td\u003e\n\u003ctd\u003e132 (52.0)\u003c\/td\u003e\n\u003ctd\u003e58 (22.8)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e83 (32.7)\u003c\/td\u003e\n\u003ctd\u003e140 (55.1)\u003c\/td\u003e\n\u003ctd\u003e60 (23.6)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e84 (33.1)\u003c\/td\u003e\n\u003ctd\u003e148 (58.3)\u003c\/td\u003e\n\u003ctd\u003e62 (24.4)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e156 (61.4)\u003c\/td\u003e\n\u003ctd\u003e64 (25.2)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6XL\u003c\/td\u003e\n\u003ctd\u003e86 (33.9)\u003c\/td\u003e\n\u003ctd\u003e164 (64.6)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67829746073734,"sku":"KK969204635436462080-V42792","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67829746106502,"sku":"KK969204635436462080-V42793","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67829746139270,"sku":"KK969204635436462080-V42794","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67829746172038,"sku":"KK969204635436462080-V42795","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67829746204806,"sku":"KK969204635436462080-V42796","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67829746237574,"sku":"KK969204635436462080-V42797","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67829746270342,"sku":"KK969204635436462080-V42798","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67829746303110,"sku":"KK969204635436462080-V42799","price":172.0,"currency_code":"CAD","in_stock":true},{"title":"6XL","offer_id":67829746335878,"sku":"KK969204635436462080-V42800","price":172.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Dress_Shirt_-_Lilac_-_portrait.jpg?v=1793489604"},{"product_id":"fivefold-cotton-dress-shirt-rhombs-blue","title":"Fivefold Cotton Dress Shirt: Rhombs — Blue","description":"\u003cp\u003e\u003cstrong\u003eTwo diamonds that tile forever and never repeat.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIn the 1970s Roger Penrose found a pair of diamonds, one wide and one narrow, that cover a floor without gaps or end, but never fall into a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSome places have five-pointed stars, and others a star surrounded by a ring. These two diamonds create many different arrangements together, but overall, wide diamonds outnumber the narrow ones by the golden ratio.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eA formal shirt with a conversation in it: for conference talks, thesis defenses, interviews, weddings and dinners. A thoughtful gift for the scientist, engineer or programmer with great taste.\u003c\/p\u003e\n\u003ch3\u003eThe Cotton Dress Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight 100% cotton (110 g).\u003c\/li\u003e\n\u003cli\u003eLong sleeves with buttoned cuffs, collar and a single chest pocket.\u003c\/li\u003e\n\u003cli\u003ePrinted edge to edge, across collar, cuffs and pocket.\u003c\/li\u003e\n\u003cli\u003eEuropean sizing: please check the size guide below before ordering.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). 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Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour Shapes.\u003c\/strong\u003e A star, a butterfly, a four-leaf clover and a heart, each drawn by its own chain of turning circles.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. 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Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). 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Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833392988294,"sku":"ZZ1521221-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833393021062,"sku":"ZZ1521221-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833393053830,"sku":"ZZ1521221-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833393086598,"sku":"ZZ1521221-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833393119366,"sku":"ZZ1521221-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Epicycle_Scribe_T-Shirt_-_Star_5321c338-098f-4519-9672-80602fe62c7d.jpg?v=1793489632"},{"product_id":"epicycle-scribe-unisex-t-shirt-butterfly","title":"Epicycle Scribe Unisex T-Shirt: Butterfly","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eButterfly.\u003c\/strong\u003e Temple Fay’s butterfly curve from 1989.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833393610886,"sku":"ZZ1521220-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833393643654,"sku":"ZZ1521220-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833393676422,"sku":"ZZ1521220-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833393709190,"sku":"ZZ1521220-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833393741958,"sku":"ZZ1521220-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Epicycle_Scribe_T-Shirt_-_Butterfly_f71dc26b-e98b-4c81-abb4-420be8813b65.jpg?v=1793489642"},{"product_id":"epicycle-scribe-unisex-t-shirt-four-leaf-clover","title":"Epicycle Scribe Unisex T-Shirt: Four-Leaf Clover","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour-Leaf Clover.\u003c\/strong\u003e Four leaves, each traced by the same chain of turning circles.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833394233478,"sku":"ZZ1521219-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833394266246,"sku":"ZZ1521219-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833394299014,"sku":"ZZ1521219-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833394331782,"sku":"ZZ1521219-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833394364550,"sku":"ZZ1521219-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Epicycle_Scribe_T-Shirt_-_Four-Leaf_Clover_64f47bbc-bea7-4a93-800d-aa40748fe849.jpg?v=1793489651"},{"product_id":"epicycle-scribe-unisex-t-shirt-lemniscate-infinity","title":"Epicycle Scribe Unisex T-Shirt: Lemniscate Infinity","description":"\u003cp\u003e\u003cstrong\u003eCircles riding on circles, drawing a shape.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFix a small circle to the rim of a larger one and turn both, following a point on the smallest. Ancient astronomers used these epicycles to predict the wandering of the planets in the night sky. Centuries later, Joseph Fourier showed why they work so well: almost any repeating shape can be built by adding together circular motions of different sizes and speeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLemniscate Infinity.\u003c\/strong\u003e Jacob Bernoulli’s figure-eight from 1694, the curve behind the infinity sign.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThe circles that once tracked the planets are now Fourier analysis, the idea behind audio equalizers, MRI scanners and the compression in MP3s and JPEGs. Made for electrical and audio engineers, physicists, astronomers and anyone who loves finding hidden patterns.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833394888838,"sku":"ZZ1521218-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833394921606,"sku":"ZZ1521218-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833394954374,"sku":"ZZ1521218-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833394987142,"sku":"ZZ1521218-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833395019910,"sku":"ZZ1521218-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Epicycle_Scribe_T-Shirt_-_Lemniscate_Infinity_2560a3b4-9f8b-4126-9c78-dd8143d5807f.jpg?v=1793489662"},{"product_id":"planetary-epicycles-unisex-t-shirt-venus-parchment","title":"Planetary Epicycles Unisex T-Shirt: Venus — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVenus.\u003c\/strong\u003e Eight Earth years are almost exactly thirteen Venus years, so Venus repeats its dance every eight years, looping five times: the ‘pentagram of Venus’ the Maya tracked in their calendars.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833914458246,"sku":"ZZ1521225-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833914491014,"sku":"ZZ1521225-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833914523782,"sku":"ZZ1521225-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833914556550,"sku":"ZZ1521225-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833914589318,"sku":"ZZ1521225-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_T-Shirt_-_Venus_e5c0a508-a01e-467e-a5e7-099c53e3d8e0.jpg?v=1793489675"},{"product_id":"planetary-epicycles-unisex-t-shirt-five-planets-parchment","title":"Planetary Epicycles Unisex T-Shirt: Five Planets — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFive Planets.\u003c\/strong\u003e Mercury, Venus, Mars, Jupiter and Saturn, the five planets visible with the naked eye. Venus loops 5 times in 8 years, Jupiter 11 times in 12, Mars 15 times in 32, Saturn 28 times in 29, and quick Mercury 41 times in 13.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833914622086,"sku":"ZZ1521224-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833914654854,"sku":"ZZ1521224-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833914687622,"sku":"ZZ1521224-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833914720390,"sku":"ZZ1521224-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833914753158,"sku":"ZZ1521224-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_T-Shirt_-_Five_Planets_912c421e-30bb-4bfb-9407-6df008dce473.jpg?v=1793489684"},{"product_id":"planetary-epicycles-unisex-t-shirt-earth-and-mars-parchment","title":"Planetary Epicycles Unisex T-Shirt: Earth and Mars — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. 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Turn the question around, the Earth seen from Mars, and you get the same figure turned half a circle, looping at the same moments.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67833914785926,"sku":"ZZ1521223-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67833914818694,"sku":"ZZ1521223-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67833914851462,"sku":"ZZ1521223-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67833914884230,"sku":"ZZ1521223-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67833914916998,"sku":"ZZ1521223-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_T-Shirt_-_Earth_and_Mars_347ddcd3-5df5-4f16-a7b4-c415778c49f9.jpg?v=1793489693"},{"product_id":"planetary-epicycles-unisex-sweatshirt-earth-and-mars-parchment","title":"Planetary Epicycles Unisex Sweatshirt: Earth and Mars — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEarth and Mars.\u003c\/strong\u003e Red Mars seen from blue-green Earth loops fifteen times in thirty-two years. Turn the question around, the Earth seen from Mars, and you get the same figure turned half a circle, looping at the same moments.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor late nights in the lab, cold observatory domes and long afternoons of reading, in a relaxed unisex cut.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex Sweatshirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e280 g loopback knit, 95% polyester and 5% spandex. Warm, with a little stretch.\u003c\/li\u003e\n\u003cli\u003eCrew neck, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or machine below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasured laid flat, in cm (inches); chest is armpit to armpit. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eChest (flat)\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e44.5 (17.5)\u003c\/td\u003e\n\u003ctd\u003e51 (20.1)\u003c\/td\u003e\n\u003ctd\u003e61.5 (24.2)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e46 (18.1)\u003c\/td\u003e\n\u003ctd\u003e53 (20.9)\u003c\/td\u003e\n\u003ctd\u003e63.5 (25.0)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e47.5 (18.7)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65.5 (25.8)\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e49 (19.3)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003ctd\u003e67.5 (26.6)\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e50.5 (19.9)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003ctd\u003e69.5 (27.4)\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003ctd\u003e71.5 (28.1)\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003ctd\u003e73.5 (28.9)\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003ctd\u003e75.5 (29.7)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67834298138758,"sku":"KK970000637879398400-V42784","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67834298171526,"sku":"KK970000637879398400-V42785","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67834298204294,"sku":"KK970000637879398400-V42786","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67834298237062,"sku":"KK970000637879398400-V42787","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67834298269830,"sku":"KK970000637879398400-V42788","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67834298302598,"sku":"KK970000637879398400-V42789","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67834298335366,"sku":"KK970000637879398400-V42790","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67834298368134,"sku":"KK970000637879398400-V42791","price":94.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Unisex_Sweatshirt_Earth_and_Mars_-_flat_fdf87b59-83e1-4b50-a124-9136087a3b35.jpg?v=1793388530"},{"product_id":"planetary-epicycles-unisex-sweatshirt-five-planets-parchment","title":"Planetary Epicycles Unisex Sweatshirt: Five Planets — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFive Planets.\u003c\/strong\u003e Mercury, Venus, Mars, Jupiter and Saturn, the five planets visible with the naked eye. Venus loops 5 times in 8 years, Jupiter 11 times in 12, Mars 15 times in 32, Saturn 28 times in 29, and quick Mercury 41 times in 13.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor late nights in the lab, cold observatory domes and long afternoons of reading, in a relaxed unisex cut.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex Sweatshirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e280 g loopback knit, 95% polyester and 5% spandex. Warm, with a little stretch.\u003c\/li\u003e\n\u003cli\u003eCrew neck, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or machine below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasured laid flat, in cm (inches); chest is armpit to armpit. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eChest (flat)\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e44.5 (17.5)\u003c\/td\u003e\n\u003ctd\u003e51 (20.1)\u003c\/td\u003e\n\u003ctd\u003e61.5 (24.2)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e46 (18.1)\u003c\/td\u003e\n\u003ctd\u003e53 (20.9)\u003c\/td\u003e\n\u003ctd\u003e63.5 (25.0)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e47.5 (18.7)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65.5 (25.8)\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e49 (19.3)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003ctd\u003e67.5 (26.6)\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e50.5 (19.9)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003ctd\u003e69.5 (27.4)\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003ctd\u003e71.5 (28.1)\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003ctd\u003e73.5 (28.9)\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003ctd\u003e75.5 (29.7)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67834298400902,"sku":"KK970000005915226113-V42784","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67834298433670,"sku":"KK970000005915226113-V42785","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67834298466438,"sku":"KK970000005915226113-V42786","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67834298499206,"sku":"KK970000005915226113-V42787","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67834298531974,"sku":"KK970000005915226113-V42788","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67834298564742,"sku":"KK970000005915226113-V42789","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67834298597510,"sku":"KK970000005915226113-V42790","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67834298630278,"sku":"KK970000005915226113-V42791","price":94.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Unisex_Sweatshirt_Five_Planets_-_flat_67eb70cf-3b90-4d6a-94cf-0e6228b9836a.jpg?v=1793388560"},{"product_id":"planetary-epicycles-unisex-sweatshirt-venus-parchment","title":"Planetary Epicycles Unisex Sweatshirt: Venus — Parchment","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVenus.\u003c\/strong\u003e Eight Earth years are almost exactly thirteen Venus years, so Venus repeats its dance every eight years, looping five times: the ‘pentagram of Venus’ the Maya tracked in their calendars.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor late nights in the lab, cold observatory domes and long afternoons of reading, in a relaxed unisex cut.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex Sweatshirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e280 g loopback knit, 95% polyester and 5% spandex. Warm, with a little stretch.\u003c\/li\u003e\n\u003cli\u003eCrew neck, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or machine below 45 °C. Do not soak or bleach.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasured laid flat, in cm (inches); chest is armpit to armpit. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003cth\u003eChest (flat)\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e44.5 (17.5)\u003c\/td\u003e\n\u003ctd\u003e51 (20.1)\u003c\/td\u003e\n\u003ctd\u003e61.5 (24.2)\u003c\/td\u003e\n\u003ctd\u003e66 (26.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e46 (18.1)\u003c\/td\u003e\n\u003ctd\u003e53 (20.9)\u003c\/td\u003e\n\u003ctd\u003e63.5 (25.0)\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e47.5 (18.7)\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65.5 (25.8)\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e49 (19.3)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003ctd\u003e67.5 (26.6)\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e50.5 (19.9)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003ctd\u003e69.5 (27.4)\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e52 (20.5)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003ctd\u003e71.5 (28.1)\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4XL\u003c\/td\u003e\n\u003ctd\u003e53.5 (21.1)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003ctd\u003e73.5 (28.9)\u003c\/td\u003e\n\u003ctd\u003e78 (30.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5XL\u003c\/td\u003e\n\u003ctd\u003e55 (21.7)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003ctd\u003e75.5 (29.7)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67834298695814,"sku":"KK969999582261161984-V42784","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67834298728582,"sku":"KK969999582261161984-V42785","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67834298761350,"sku":"KK969999582261161984-V42786","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67834298794118,"sku":"KK969999582261161984-V42787","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67834298826886,"sku":"KK969999582261161984-V42788","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67834298859654,"sku":"KK969999582261161984-V42789","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67834298892422,"sku":"KK969999582261161984-V42790","price":94.0,"currency_code":"CAD","in_stock":true},{"title":"5XL","offer_id":67834298925190,"sku":"KK969999582261161984-V42791","price":94.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Unisex_Sweatshirt_Venus_-_flat_a6fe079e-b94c-4379-b9df-bef173416af1.jpg?v=1793388591"},{"product_id":"fivefold-unisex-t-shirt-growth-rings-graphite","title":"Fivefold Unisex T-Shirt: Growth Rings — Graphite","description":"\u003cp\u003e\u003cstrong\u003eA Penrose tiling, three generations deep.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern takes a familiar fivefold never-repeating pattern and makes a new one. Cut every wide and narrow diamond along a few set lines, and the pieces, scaled down by the golden ratio, join up with their neighbors' pieces into smaller wide and narrow diamonds: a finer tiling of the same sort. Do it again and again and the pattern gets finer and finer.\u003c\/p\u003e\n\u003cp\u003eLook closely at any large diamond and you will find the same tiling, one size smaller: chambers within chambers.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eMade to be noticed: a bold print in a relaxed unisex cut, for conferences, concerts, weekends, and anywhere a good conversation might start.\u003c\/p\u003e\n\u003ch3\u003eThe Unisex T-Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight polyester with a soft, cotton-like hand. Quick-drying, relaxed unisex fit: size down for a closer fit.\u003c\/li\u003e\n\u003cli\u003eWash by hand or on a gentle cycle. Hang to dry, no bleach, cool iron.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003cth\u003eShoulder\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e68 (26.8)\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e16.5 (6.5)\u003c\/td\u003e\n\u003ctd\u003e44 (17.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e70 (27.6)\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e17 (6.7)\u003c\/td\u003e\n\u003ctd\u003e45.5 (17.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e72 (28.3)\u003c\/td\u003e\n\u003ctd\u003e115 (45.3)\u003c\/td\u003e\n\u003ctd\u003e17.5 (6.9)\u003c\/td\u003e\n\u003ctd\u003e47.3 (18.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e74 (29.1)\u003c\/td\u003e\n\u003ctd\u003e120 (47.2)\u003c\/td\u003e\n\u003ctd\u003e18 (7.1)\u003c\/td\u003e\n\u003ctd\u003e49.1 (19.3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e76 (29.9)\u003c\/td\u003e\n\u003ctd\u003e125 (49.2)\u003c\/td\u003e\n\u003ctd\u003e18.5 (7.3)\u003c\/td\u003e\n\u003ctd\u003e50.9 (20.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67844507009158,"sku":"ZZ1522060-V43032","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67844507041926,"sku":"ZZ1522060-V43033","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67844507074694,"sku":"ZZ1522060-V43034","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67844507107462,"sku":"ZZ1522060-V43035","price":58.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67844507140230,"sku":"ZZ1522060-V43036","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Penrose_Tiling_Unisex_T-Shirt_Growth_Rings_Graphite_-_front_97a254e9-d49c-472e-9ebd-c11af6d104be.jpg?v=1793388622"},{"product_id":"ribbon-weaver-tumbler-snapdragon-black","title":"Ribbon Weaver Tumbler — Snapdragon Black","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847103119494,"sku":"SH09037396202318619-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Tumbler_Snapdragon_Black_-_front.jpg?v=1793401754"},{"product_id":"ribbon-weaver-tumbler-blue-grey","title":"Ribbon Weaver Tumbler — Blue Grey","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847103185030,"sku":"SH09037388830235285-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Tumbler_Blue_Grey_-_front.jpg?v=1793401838"},{"product_id":"fivefold-tumbler-growth-rings-teal","title":"Fivefold Tumbler: Growth Rings — Teal","description":"\u003cp\u003e\u003cstrong\u003eA Penrose tiling, three generations deep.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern takes a familiar fivefold never-repeating pattern and makes a new one. Cut every wide and narrow diamond along a few set lines, and the pieces, scaled down by the golden ratio, join up with their neighbors' pieces into smaller wide and narrow diamonds: a finer tiling of the same sort. Do it again and again and the pattern gets finer and finer.\u003c\/p\u003e\n\u003cp\u003eLook closely at any large diamond and you will find the same tiling, one size smaller: chambers within chambers.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor long workdays, lazy weekend mornings and every walk in between.\u003c\/p\u003e\n\u003ch3\u003eThe Tumbler\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e20 oz double-walled stainless steel, keeping drinks hot or cold for longer. About 18 cm (7 in) tall.\u003c\/li\u003e\n\u003cli\u003eClear slide lid; fits most car cup holders.\u003c\/li\u003e\n\u003cli\u003ePrinted all the way around.\u003c\/li\u003e\n\u003cli\u003eHand wash only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847345668230,"sku":"SH10300217565233757-V41033","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Fivefold_Tumbler_Growth_Rings_Teal_-_front_31446b07-c8a2-47ca-ac8e-541187044274.jpg?v=1793403352"},{"product_id":"planetary-epicycles-ceramic-dish-five-planets","title":"Planetary Epicycles Ceramic Dish: Five Planets","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFive Planets.\u003c\/strong\u003e Mercury, Venus, Mars, Jupiter and Saturn, the five planets visible with the naked eye. Venus loops 5 times in 8 years, Jupiter 11 times in 12, Mars 15 times in 32, Saturn 28 times in 29, and quick Mercury 41 times in 13.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847710965894,"sku":"SH10300460637606744-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Ceramic_Dish_Five_Planets_-_table_ddb37de9-e039-4829-bc03-a643d1f8a117.jpg?v=1793462286"},{"product_id":"planetary-epicycles-ceramic-dish-earth-and-mars","title":"Planetary Epicycles Ceramic Dish: Earth and Mars","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEarth and Mars.\u003c\/strong\u003e Red Mars seen from blue-green Earth loops fifteen times in thirty-two years. Turn the question around, the Earth seen from Mars, and you get the same figure turned half a circle, looping at the same moments.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847711031430,"sku":"SH10300460451670721-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Ceramic_Dish_Earth_and_Mars_-_table_2d37b399-6a76-424f-8f9d-84b5e11fe6b1.jpg?v=1793462303"},{"product_id":"planetary-epicycles-ceramic-dish-venus","title":"Planetary Epicycles Ceramic Dish: Venus","description":"\u003cp\u003e\u003cstrong\u003eThe planets’ real paths across the sky, drawn with two circles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlanet is Greek for wanderer. Against the stars, a planet drifts one way, stops, runs backwards for weeks or months, then turns forwards again. Ptolemy explained it with a small circle, the epicycle, riding on a large one. Later, Copernicus explained why it works: the small circle is the Earth’s own orbit, and seen from a moving Earth, every planet is two turning circles added together.\u003c\/p\u003e\n\u003cp\u003eEach loop is a retrograde, the moment the Earth overtakes the planet or the planet overtakes the Earth. The thin rings are the two circles that draw the pattern, and the colored stroke is the planet itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVenus.\u003c\/strong\u003e Eight Earth years are almost exactly thirteen Venus years, so Venus repeats its dance every eight years, looping five times: the ‘pentagram of Venus’ the Maya tracked in their calendars.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eThis is the real geometry of the night sky: the loops a planet traces as the Earth overtakes it, computed from each planet’s real orbital size and period. Made for astronomers, astrophysicists, physics teachers, planetarium people, stargazers with a telescope in the cupboard, and anyone who loves the history of science.\u003c\/p\u003e\n\u003cp\u003eFor a nightstand, dresser or desk, and an easy gift for anyone who loves a good idea.\u003c\/p\u003e\n\u003ch3\u003eThe Ceramic Dish\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeramic, with a wavy scalloped edge and a gold-colored rim.\u003c\/li\u003e\n\u003cli\u003eAbout 11.5 cm (4½ in) across and 1.7 cm (¾ in) deep: sized for keys, jewelry and the small things that gather on your desk.\u003c\/li\u003e\n\u003cli\u003eHand wash. The gold rim is not microwave or dishwasher safe.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"One Size","offer_id":67847711064198,"sku":"SH10300460266602391-V43637","price":47.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Planetary_Epicycles_Ceramic_Dish_Venus_-_table_5e08ce38-b674-4383-b77f-a8cac21f66e7.jpg?v=1793462324"},{"product_id":"conway-loops-mens-golf-shirt-night-lilac","title":"Conway Loops Men's Golf Shirt — Night Lilac","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. The tiles disappear, and loops and flowers with fivefold symmetry appear in their place.\u003c\/p\u003e\n\u003cp\u003eThis pattern shows just one of these arcs: its loops make five-petaled flowers and five-pointed stars, each colored by its size.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Men’s Golf Shirt\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100% polyester jersey: breathable, moisture-wicking and wrinkle-resistant.\u003c\/li\u003e\n\u003cli\u003eClassic collar, three-button placket, reinforced seams.\u003c\/li\u003e\n\u003cli\u003ePrinted on every panel: body, sleeves and collar.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). For 4XL measurements, email us. Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eSleeve\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e98 (38.6)\u003c\/td\u003e\n\u003ctd\u003e69 (27.2)\u003c\/td\u003e\n\u003ctd\u003e22 (8.7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e106 (41.7)\u003c\/td\u003e\n\u003ctd\u003e71 (28.0)\u003c\/td\u003e\n\u003ctd\u003e22.5 (8.9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e114 (44.9)\u003c\/td\u003e\n\u003ctd\u003e73 (28.7)\u003c\/td\u003e\n\u003ctd\u003e23 (9.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e122 (48.0)\u003c\/td\u003e\n\u003ctd\u003e76.5 (30.1)\u003c\/td\u003e\n\u003ctd\u003e24 (9.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e130 (51.2)\u003c\/td\u003e\n\u003ctd\u003e80 (31.5)\u003c\/td\u003e\n\u003ctd\u003e25 (9.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3XL\u003c\/td\u003e\n\u003ctd\u003e138 (54.3)\u003c\/td\u003e\n\u003ctd\u003e83.5 (32.9)\u003c\/td\u003e\n\u003ctd\u003e26 (10.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"S","offer_id":67856470966406,"sku":"SH10316544787594999-V39839","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856470999174,"sku":"SH10316544787594999-V39840","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856471031942,"sku":"SH10316544787594999-V39841","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856471064710,"sku":"SH10316544787594999-V39842","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856471097478,"sku":"SH10316544787594999-V39843","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"3XL","offer_id":67856471130246,"sku":"SH10316544787594999-V39844","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"4XL","offer_id":67856471163014,"sku":"SH10316544787594999-V39845","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Conway_Loops_Golf_Shirt_-_Night_Lilac.jpg?v=1793489710"},{"product_id":"ribbon-weaver-womens-polo-grackle","title":"Ribbon Weaver Women's Polo — Grackle","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Women’s Polo\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e95% polyester, 5% spandex: light, quick-drying and holds its shape.\u003c\/li\u003e\n\u003cli\u003eThree-button placket, welt collar, double-needle sleeve and hem finish.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"XS","offer_id":67856474275974,"sku":"SH10316564264798258-V35567","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"S","offer_id":67856474308742,"sku":"SH10316564264798258-V35568","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856474341510,"sku":"SH10316564264798258-V35569","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856474374278,"sku":"SH10316564264798258-V35570","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856474407046,"sku":"SH10316564264798258-V35571","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856474439814,"sku":"SH10316564264798258-V35572","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Women_s_Polo_Grackle_-_front.jpg?v=1793468945"},{"product_id":"ribbon-weaver-womens-polo-lichen","title":"Ribbon Weaver Women's Polo — Lichen","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Women’s Polo\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e95% polyester, 5% spandex: light, quick-drying and holds its shape.\u003c\/li\u003e\n\u003cli\u003eThree-button placket, welt collar, double-needle sleeve and hem finish.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"XS","offer_id":67856474472582,"sku":"SH10316564086549072-V35567","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"S","offer_id":67856474505350,"sku":"SH10316564086549072-V35568","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856474538118,"sku":"SH10316564086549072-V35569","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856474570886,"sku":"SH10316564086549072-V35570","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856474603654,"sku":"SH10316564086549072-V35571","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856474636422,"sku":"SH10316564086549072-V35572","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Women_s_Polo_Lichen_-_front.jpg?v=1793468972"},{"product_id":"ribbon-weaver-womens-polo-lilac","title":"Ribbon Weaver Women's Polo — Lilac","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Women’s Polo\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e95% polyester, 5% spandex: light, quick-drying and holds its shape.\u003c\/li\u003e\n\u003cli\u003eThree-button placket, welt collar, double-needle sleeve and hem finish.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"XS","offer_id":67856474669190,"sku":"SH10316563899626543-V35567","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"S","offer_id":67856474701958,"sku":"SH10316563899626543-V35568","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856474734726,"sku":"SH10316563899626543-V35569","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856474767494,"sku":"SH10316563899626543-V35570","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856474800262,"sku":"SH10316563899626543-V35571","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856474833030,"sku":"SH10316563899626543-V35572","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Women_s_Polo_Lilac_-_front.jpg?v=1793472752"},{"product_id":"ribbon-weaver-womens-polo-blue-horizon","title":"Ribbon Weaver Women's Polo — Blue Horizon","description":"\u003cp\u003e\u003cstrong\u003eFive sets of parallel lines, one hidden tiling.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis pattern begins with five sets of parallel lines, each running in a different direction like five striped sheets over top of one another.\u003c\/p\u003e\n\u003cp\u003eIn 1981, Dutch mathematician Nicolaas de Bruijn showed how to turn this grid into a never-repeating tiling. Let the crossings act as instructions so that each one becomes a diamond. The diamonds can connect to cover the plane without gaps or a repeating pattern.\u003c\/p\u003e\n\u003cp\u003eSometimes the lines cross to make a pentagon surrounded by a ring, and at other places you'll see a star. All of this variety grows from the same five sets of straight lines, yet the pattern as a whole never repeats.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eDe Bruijn’s method is how physicists model quasicrystals: a slice through a higher-dimensional lattice, projected down. Made for physicists, chemists, materials scientists, crystallographers and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Women’s Polo\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e95% polyester, 5% spandex: light, quick-drying and holds its shape.\u003c\/li\u003e\n\u003cli\u003eThree-button placket, welt collar, double-needle sleeve and hem finish.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"XS","offer_id":67856474865798,"sku":"SH10316563725690173-V35567","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"S","offer_id":67856474898566,"sku":"SH10316563725690173-V35568","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856474931334,"sku":"SH10316563725690173-V35569","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856474964102,"sku":"SH10316563725690173-V35570","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856474996870,"sku":"SH10316563725690173-V35571","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856475029638,"sku":"SH10316563725690173-V35572","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Ribbon_Weaver_Women_s_Polo_Blue_Horizon_-_front.jpg?v=1793468997"},{"product_id":"conway-loops-womens-polo-night-lilac","title":"Conway Loops Women's Polo — Night Lilac","description":"\u003cp\u003e\u003cstrong\u003eTwo tile shapes, one hidden drawing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA never-repeating pattern: This pattern never settles into a repeating rhythm. Part of Fivefold, our family of never-repeating patterns built on the number five.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eRoger Penrose found two shapes, a kite and a dart, that can cover a floor forever without the pattern ever repeating. John Conway noticed that if each tile carries two small arcs, the arcs flow across the seams into smooth curves. The tiles disappear, and loops and flowers with fivefold symmetry appear in their place.\u003c\/p\u003e\n\u003cp\u003eThis pattern shows just one of these arcs: its loops make five-petaled flowers and five-pointed stars, each colored by its size.\u003c\/p\u003e\n\u003cp\u003eOrder without repetition seemed impossible in nature until 1982, when Dan Shechtman found it in a real metal alloy: a quasicrystal. The discovery earned him the 2011 Nobel Prize in Chemistry.\u003c\/p\u003e\n\u003cp\u003eNever-repeating tilings are important puzzles in computation, too: no computer program can always tell whether a given set of tiles will cover an endless floor; a geometric version of the halting problem.\u003c\/p\u003e\n\u003cp\u003eEven simple rules can result in extraordinary complexity: Some tiles can fit together to cover a floor forever, but only if the pattern never repeats. This pattern is one beautiful example.\u003c\/p\u003e\n\u003ch3\u003eWho it’s for\u003c\/h3\u003e\n\u003cp\u003eWith connections to geometry, computation and the structure of materials, this pattern will resonate with mathematicians, computer scientists, physicists, materials scientists, architects and designers.\u003c\/p\u003e\n\u003cp\u003eFor the office, campus, field days and weekends: smart enough for a meeting, easy enough for a Saturday.\u003c\/p\u003e\n\u003ch3\u003eThe Women’s Polo\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e95% polyester, 5% spandex: light, quick-drying and holds its shape.\u003c\/li\u003e\n\u003cli\u003eThree-button placket, welt collar, double-needle sleeve and hem finish.\u003c\/li\u003e\n\u003cli\u003eWash cold by hand or machine, below 45 °C. No bleach, no tumble dry.\u003c\/li\u003e\n\u003cli\u003eNot quite the right fit? Tell us within 30 days and we’ll make it right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSize guide\u003c\/h3\u003e\u003cp\u003eMeasurements around the body, in cm (inches). Allow 1–3 cm either way.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eChest\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eXS\u003c\/td\u003e\n\u003ctd\u003e85 (33.5)\u003c\/td\u003e\n\u003ctd\u003e57 (22.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS\u003c\/td\u003e\n\u003ctd\u003e90 (35.4)\u003c\/td\u003e\n\u003ctd\u003e59 (23.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM\u003c\/td\u003e\n\u003ctd\u003e96 (37.8)\u003c\/td\u003e\n\u003ctd\u003e61 (24.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e103 (40.6)\u003c\/td\u003e\n\u003ctd\u003e63 (24.8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXL\u003c\/td\u003e\n\u003ctd\u003e110 (43.3)\u003c\/td\u003e\n\u003ctd\u003e65 (25.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2XL\u003c\/td\u003e\n\u003ctd\u003e117 (46.1)\u003c\/td\u003e\n\u003ctd\u003e67 (26.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEvery Zenzicube design is grown from a real piece of mathematics. Find more in the \u003ca href=\"https:\/\/www.zenzicube.com\"\u003eMathematical Menagerie\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Zenzicube","offers":[{"title":"XS","offer_id":67856498360454,"sku":"SH10316681117562820-V35567","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"S","offer_id":67856498393222,"sku":"SH10316681117562820-V35568","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"M","offer_id":67856498425990,"sku":"SH10316681117562820-V35569","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"L","offer_id":67856498458758,"sku":"SH10316681117562820-V35570","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"XL","offer_id":67856498491526,"sku":"SH10316681117562820-V35571","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"2XL","offer_id":67856498524294,"sku":"SH10316681117562820-V35572","price":80.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/files\/Conway_Loops_Women_s_Polo_Night_Lilac_-_front.jpg?v=1793469901"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/2998\/7206\/collections\/collection-physics.jpg?v=1793641861","url":"https:\/\/shop.zenzicube.com\/collections\/physics-astronomy.oembed?page=3","provider":"Zenzicube","version":"1.0","type":"link"}