{"product_id":"feeblea-taylor-feeble-light","title":"Feeblea – Taylor’s Feeble Light \/ ~2000 h Physics Sticker","description":"\u003cp\u003eFeeblea, a patient hooded watcher, opens a dark wooden box with a faint glow inside.\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eIn 1909 a young G. I. Taylor photographed the shadow of a needle with light so dim that, in modern terms, rarely more than one photon was in the box at a time (Proc. Camb. Phil. Soc. 15, 114). His longest exposure ran about 2000 hours, roughly three months. The diffraction fringes were just as sharp as with bright light.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003et\u003csub\u003eexposure\u003c\/sub\u003e ≈ 2000 h\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003et\u003csub\u003eexposure\u003c\/sub\u003e: exposure time of the faintest photograph\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eIt is often called the first single-photon interference experiment.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHonest caveat:\u003c\/em\u003e Taylor did not detect single photons and was testing a different idea; a classical wave also explains his result. Truly single-photon interference came in the 1980s.\u003c\/p\u003e\u003ch3\u003eOn the sticker\u003c\/h3\u003e\u003cp\u003eFeeblea leans over an open wooden box with a faint warm light inside. Printed text: \u003cstrong\u003eFEEBLEA\u003c\/strong\u003e with the line \u003cstrong\u003e~2000 h\u003c\/strong\u003e. Pixel-art kiss-cut vinyl sticker, white, in 2″, 3″, 4″ and 6″ sizes.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50964212220007,"sku":"43330294500229923507","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50964212252775,"sku":"11989802617939306512","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50964212285543,"sku":"16916429006141739816","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50964212318311,"sku":"18299758012141196453","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/5816877329667754278_1200.jpg?v=1793661819","url":"https:\/\/pixelatedphysics.com\/zh-hans\/products\/feeblea-taylor-feeble-light","provider":"Pixelated Physics","version":"1.0","type":"link"}