{"id":1360,"date":"2023-12-04T16:26:57","date_gmt":"2023-12-04T16:26:57","guid":{"rendered":"https:\/\/live-optics-wp.pantheonsite.io\/oscoutreach\/?p=1360"},"modified":"2024-08-08T17:41:22","modified_gmt":"2024-08-08T17:41:22","slug":"diffractive-chocolate","status":"publish","type":"post","link":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/diffractive-chocolate\/","title":{"rendered":"Diffractive Chocolate"},"content":{"rendered":"\n<p><strong>Overview<\/strong>: Take your science skills into the kitchen. Turn ordinary chocolate into an edible optics demo that shows how diffraction works.<\/p>\n\n\n\n<p><strong>Supplies:<\/strong>&nbsp;Stove, double boiler, heat proof spatula, candy thermometer, diffraction sheets, silicon molds (optional), chocolate bars or melting chocolate<\/p>\n\n\n\n<p><strong>Objectives:<\/strong> Diffraction is the spreading of light. We do not need to look through a diffraction sheet to see the bending. Light can bounce off of fine grooved surfaces to show us how each wavelength of light refracts off of the surface.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>Setup:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If using molds, cut the diffraction sheets into pieces the size of the bottom of the molds. Place the diffraction pieces, diffraction side up, in the bottom of the mold<\/li>\n\n\n\n<li>Divide your chocolate into thirds, 2\/3 are for melting, 1\/3 is for the tempering<\/li>\n\n\n\n<li>Different chocolates have different tempering temperature, these temperatures are critical for proper tempering<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points-683x1024.jpg\" alt=\"\" class=\"wp-image-1612\" style=\"width:279px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points-683x1024.jpg 683w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points-200x300.jpg 200w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points-768x1152.jpg 768w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points-1024x1536.jpg 1024w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/Chocolate-Melting-Points.jpg 1200w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Follow this <a href=\"https:\/\/www.youtube.com\/watch?v=SoTi0tM4yQ8\">video<\/a> (starting at minute 20 for chocolate) on how to temper chocolate and create the diffraction pieces<\/li>\n\n\n\n<li>If using molds, chocolate can be poured into molds quite easily<\/li>\n<\/ul>\n\n\n\n<p><strong>How to run the demo:<\/strong> <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pass out the chocolate and explain what they see.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"266\" height=\"472\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/diffraction-chocolate.gif\" alt=\"\" class=\"wp-image-1624\" style=\"width:206px;height:auto\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><strong>Try this:<\/strong><\/p>\n\n\n\n<p>Follow the instructions in the <a href=\"https:\/\/www.youtube.com\/watch?v=SoTi0tM4yQ8\">video<\/a> (starting at minute 7:40) to make diffractive candy<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-768x1024.jpg\" alt=\"\" class=\"wp-image-1625\" style=\"width:229px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-768x1024.jpg 768w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-225x300.jpg 225w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-1152x1536.jpg 1152w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-1536x2048.jpg 1536w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163718831-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-768x1024.jpg\" alt=\"\" class=\"wp-image-1626\" style=\"width:230px;height:auto\" srcset=\"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-768x1024.jpg 768w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-225x300.jpg 225w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-1152x1536.jpg 1152w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-1536x2048.jpg 1536w, https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-content\/uploads\/sites\/75\/2024\/02\/PXL_20220308_163759862-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>What\u2019s Happening?<\/strong><\/p>\n\n\n\n<p>White light can be separated into all seven major colors of the complete spectrum or rainbow by using a diffraction grating. The grating separates light into colors as the light passes through the many fine slits of the grating. Each color travels at a different speed and therefore has a different angle of refraction when it hits the grating. Chocolate makes a reflection gratings. Along with chocolate, a compact disc also makes a good reflection grating. When light passes through a grating it is called a transmission grating. A transmission grating is what is used to make the diffractive chocolate. Diffractive candy is a transmission grating.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p><strong>Learn more:<\/strong>&nbsp;(external links)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turn your chocolate into an edible color spectrum<\/p>\n","protected":false},"author":130,"featured_media":1361,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,4,7],"tags":[],"class_list":["post-1360","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-edible-optics","category-electromagnetic-spectrum","category-everyday-optics"],"_links":{"self":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1360","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/users\/130"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/comments?post=1360"}],"version-history":[{"count":12,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1360\/revisions"}],"predecessor-version":[{"id":1772,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/posts\/1360\/revisions\/1772"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/media\/1361"}],"wp:attachment":[{"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/media?parent=1360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/categories?post=1360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/oscoutreach\/wp-json\/wp\/v2\/tags?post=1360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}