{"product_id":"elastrix-gough-joule-effect-entropic-elasticity-pixel-tee","title":"Elastrix – Gough–Joule Effect (Entropic Elasticity) Physics T-Shirt","description":"\u003cp\u003eWhy does heated rubber pull harder? A stretched rubber band’s chains are partly straightened, and thermal motion keeps pushing them back toward tangled, higher-entropy shapes. Heat it and that pull grows, so the band contracts and can lift a weight. John Gough noticed the effect, and James Joule measured it carefully in 1859. Pixel-art unisex tee; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"PixelatedPhysics","offers":[{"title":"White \/ S","offer_id":50419255410791,"sku":"30170485856919861447","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ M","offer_id":50419255476327,"sku":"34605442055083499607","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ L","offer_id":50419255541863,"sku":"12091287321117739963","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ XL","offer_id":50419255607399,"sku":"93694859915112964704","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ 2XL","offer_id":50419255672935,"sku":"22164637414894186406","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ 3XL","offer_id":50419255738471,"sku":"33119483853220792283","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ 4XL","offer_id":50419255804007,"sku":"17971674951058924975","price":29.99,"currency_code":"USD","in_stock":true},{"title":"White \/ 5XL","offer_id":50419255869543,"sku":"11988483761160814057","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ S","offer_id":50419255443559,"sku":"31093910640690326756","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":50419255509095,"sku":"71526329325657908803","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":50419255574631,"sku":"18807876862357545963","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":50419255640167,"sku":"28801030025246001359","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 2XL","offer_id":50419255705703,"sku":"30934094960245896150","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 3XL","offer_id":50419255771239,"sku":"43426006769417023079","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 4XL","offer_id":50419255836775,"sku":"24949971417233000700","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 5XL","offer_id":50419255902311,"sku":"41172959664024957068","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/10_elastrix_01_model_m_black_hips.jpg?v=1791663241","url":"https:\/\/pixelatedphysics.com\/products\/elastrix-gough-joule-effect-entropic-elasticity-pixel-tee","provider":"Pixelated Physics","version":"1.0","type":"link"}