{"product_id":"colladons-bell-plate-088-physics-poster","title":"Colladon's Bell – Plate 088 Physics Poster","description":"\u003cp\u003ePlate 88 speaks for itself: \u003cem\u003e“Sound crossed the lake four times faster than in air.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eIn 1826 Colladon and Sturm struck a bell under Lake Geneva and lit a flash at the same moment. Timing the sound 13.5 km away gave its speed in water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ec = d \/ Δt = √(K \/ ρ)\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ec: speed of sound, m s⁻¹\u003c\/li\u003e\n\u003cli\u003ed: distance, m\u003c\/li\u003e\n\u003cli\u003eΔt: delay, s\u003c\/li\u003e\n\u003cli\u003eK: bulk modulus, Pa\u003c\/li\u003e\n\u003cli\u003eρ: density, kg m⁻³\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e1826: a bell under Lake Geneva, a flash above it. About four times faster than sound in air.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eD. Colladon, C. Sturm, Ann. Chim. Phys. 36, 113 (1827).\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 088, “Colladon's Bell”: the pixel-art plate with its slogan “Sound crossed the lake four times faster than in air.”, the key equation and the facts panel shown above. Pixelated Physics. Physics. Personified.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"9'' x 12\" (Vertical) \/ Matte","offer_id":50962698600551,"sku":"30711771100120715463","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50962698633319,"sku":"20120006598598934958","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50962698666087,"sku":"32722634789986359205","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50962698698855,"sku":"13383898834259259269","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50962698731623,"sku":"22682952419017560233","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50962698764391,"sku":"14483397162197154968","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50962698797159,"sku":"14659705012054132500","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50962698829927,"sku":"17694867276325288868","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50962698862695,"sku":"20265049722353980660","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/9374089434500577613_2048.jpg?v=1793637132","url":"https:\/\/pixelatedphysics.com\/fr\/products\/colladons-bell-plate-088-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}