{"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":"PixelatedPhysics","offers":[{"title":"3\" × 3\" \/ White","offer_id":50443422466151,"sku":"11436576511498655989","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/01_clean_2f693080-2d5e-4ba5-b06b-96cd64a0fd1f.jpg?v=1791898126","url":"https:\/\/pixelatedphysics.com\/products\/fritz-zwicky-sticker-too-fast-to-be-lit-physics-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}