{"product_id":"floating-coins-3-pk","title":"Floating Coins - 3\/pk","description":"\u003cp data-start=\"131\" data-end=\"259\"\u003eAt first glance, a 1-yen coin seems unremarkable, but this feather-light aluminum disc is a masterclass in physics and design.\u003c\/p\u003e\n\u003cp data-start=\"261\" data-end=\"611\"\u003eIntroduced in 1955, it weighs exactly 1 gram and spans just 20 millimeters. Made of pure aluminum, it’s so low in density that surface tension can hold it afloat on water—an everyday object turned into a physics demonstration. Like ships balanced on the ocean, the coin presses down, but the water’s molecular “skin” pushes back, keeping it afloat.\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"894\"\u003ePlace two of these coins side by side and something remarkable happens: they creep together. The scientific term for this is the Cheerios effect, where floating objects bend the water’s surface into tiny slopes, sliding toward one another as though pulled by a miniature gravity.\u003c\/p\u003e\n\u003cp data-start=\"896\" data-end=\"1096\"\u003eWhat began as Japan’s smallest unit of currency has also become a physics favorite, a humble coin that reveals the hidden rules of surface physics while carrying with it decades of economic history.\u003c\/p\u003e\n\u003cp data-start=\"896\" data-end=\"1096\"\u003eIncludes 3 floating coins\u003c\/p\u003e","brand":"Stemcell Science Shop","offers":[{"title":"Default Title","offer_id":53255457800492,"sku":"FL-4815","price":1.89,"currency_code":"USD","in_stock":true}],"url":"https:\/\/blacksyonelmusicllc.myshopify.com\/products\/floating-coins-3-pk","provider":"Black Syonel Music LLC Pro ","version":"1.0","type":"link"}