{"product_id":"fritz-zwicky-sticker-too-fast-to-be-lit-physics-sticker","title":"Fritz Zwicky Sticker – Too Fast To Be Lit | Physics Sticker","description":"\u003cp\u003eWhat holds a galaxy cluster together? In 1933 Fritz Zwicky found galaxies in the Coma cluster moving far too fast for the visible matter to hold. By the virial theorem, σ² ~ GM\/R, so fast motions need much more mass than shines. He called the missing mass dunkle Materie and refined the case in 1937. A 3\" pixel-art physicist sticker; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50654990467175,"sku":"14146561056450855885","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50443422466151,"sku":"11436576511498655989","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50654990499943,"sku":"60971815802049030731","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50654990532711,"sku":"32009954145400155416","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/4278988315319392507_1200.jpg?v=1793667382","url":"https:\/\/pixelatedphysics.com\/fr\/products\/fritz-zwicky-sticker-too-fast-to-be-lit-physics-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}