{"id":2903,"date":"2023-02-08T10:25:34","date_gmt":"2023-02-08T04:55:34","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=2903"},"modified":"2025-03-26T09:03:50","modified_gmt":"2025-03-26T03:33:50","slug":"what-are-quasicrystals","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-are-quasicrystals\/","title":{"rendered":"What are Quasicrystals?"},"content":{"rendered":"<h2>About Quasicrystal:<\/h2>\n<ul>\n<li>Quasicrystal, also called <strong>quasi-periodic crystal<\/strong>, matter formed atomically in a manner somewhere between the <strong>amorphous solids<\/strong> of glasses and the precise pattern of crystals.<\/li>\n<li>In quasicrystals, the atoms are arranged in a <strong>pattern that repeats itself at irregular,<\/strong> yet predictable, intervals.<\/li>\n<li>The American-Israeli <strong>scientist Dan Shechtman<\/strong> discovered quasicrystals in the lab in 1982.<\/li>\n<li>The first natural quasicrystal found was as microscopic grains in a fragment of the Khatyrka meteorite lying in the <strong>Koryak mountains of Russia<\/strong>.<\/li>\n<li>The second time scientists found natural quasicrystals in the remains of the <strong>Trinity test of the Manhattan Project<\/strong>.<\/li>\n<li>Recently in the <strong>Sand Hills dunes<\/strong> in northern Nebraska, where scientists found silicate glass which is a <strong>dodecagonal quasicrystal,<\/strong> rare even for quasicrystals.<\/li>\n<\/ul>\n<h3>Applications of Quasicrystals<\/h3>\n<ul>\n<li>They are used in <strong>surgical instruments, LED lights and nonstick frying pans<\/strong>.<\/li>\n<li>They have poor heat conductivity, which makes them good insulators.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is the structure of an amorphous solid?<\/h3>\n<p>Amorphous solids resemble liquids in that they do not have an ordered structure, an orderly arrangement of atoms or ions in a three-dimensional structure.\u00a0<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/quasicrystals-remember-the-chaos\/article66480253.ece\" target=\"_blank\" rel=\"nofollow noopener\"><u>The third source of natural quasicrystals preserves their reputation for violent origins<\/u><\/a>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In quasicrystals, atoms are arranged in a pattern that repeats itself at irregular, yet predictable, intervals.<\/p>\n","protected":false},"author":5,"featured_media":2904,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2903","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=2903"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2903\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/2904"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=2903"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=2903"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=2903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}