{"product_id":"photonix-photoelectric-effect-physics-mug","title":"Photonix – Photoelectric Effect Physics Mug","description":"\u003cp\u003eWhy can dim ultraviolet light free electrons when bright red light cannot? Photonix knows. Light arrives in quanta of energy hf. Each photon frees one electron with at most Kmax = hf − φ, so frequency sets the energy and brightness only sets the number. Einstein explained it in 1905. Pixel-art black ceramic mug in 11 or 15 oz; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50420029554791,"sku":"16271002978429589791","price":21.99,"currency_code":"USD","in_stock":true},{"title":"15oz","offer_id":50420029587559,"sku":"73622996334936763073","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/photonix_closeup_2400.png?v=1791690176","url":"https:\/\/pixelatedphysics.com\/products\/photonix-photoelectric-effect-physics-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}