{"product_id":"fibrel-numerical-aperture-of-an-optical-fibre-pixel-sticker","title":"Fibrel – Numerical Aperture of an Optical Fibre Physics Sticker","description":"\u003cp\u003eMeet Fibrel, a glass fibre who traps light that enters her end within a certain cone. Numerical aperture sets that cone: with core index 1.48 and cladding 1.46 it is about 0.24, accepting light within 14° of the axis. Charles Kao won the 2009 Nobel Prize. Pixel-art kiss-cut sticker in 2, 3, 4 and 6 inches; equation, symbols and sources in the physics panel below.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"2\" × 2\" \/ White","offer_id":50658900869223,"sku":"33990350066064921412","price":4.99,"currency_code":"USD","in_stock":true},{"title":"3\" × 3\" \/ White","offer_id":50658900901991,"sku":"30416858264590424453","price":6.99,"currency_code":"USD","in_stock":true},{"title":"4\" × 4\" \/ White","offer_id":50658900934759,"sku":"10366812612939718046","price":8.99,"currency_code":"USD","in_stock":true},{"title":"6\" × 6\" \/ White","offer_id":50658900967527,"sku":"17736978212938651615","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/01_clean_dc948959-dd12-4e10-ba9e-014b68d04b0d.jpg?v=1792807090","url":"https:\/\/pixelatedphysics.com\/products\/fibrel-numerical-aperture-of-an-optical-fibre-pixel-sticker","provider":"Pixelated Physics","version":"1.0","type":"link"}