{"id":40756,"date":"2013-03-22T11:08:25","date_gmt":"2013-03-22T18:08:25","guid":{"rendered":"http:\/\/www.boardistan.com\/?p=40756"},"modified":"2013-03-22T11:08:39","modified_gmt":"2013-03-22T18:08:39","slug":"snow-flakes-up-really-really-close","status":"publish","type":"post","link":"http:\/\/www.boardistan.com\/?p=40756","title":{"rendered":"Snow Flakes Up Really Really Close"},"content":{"rendered":"<p><a href=\"http:\/\/www.boardistan.com\/wp-content\/uploads\/2013\/03\/microscopic-snow-crystals-3.jpg\" onclick=\"window.open('http:\/\/www.boardistan.com\/wp-content\/uploads\/2013\/03\/microscopic-snow-crystals-3.jpg','popup','width=800,height=597,scrollbars=no,resizable=yes,toolbar=no,directories=no,location=no,menubar=no,status=yes,left=0,top=0');return false\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.boardistan.com\/wp-content\/uploads\/2013\/03\/microscopic-snow-crystals-3-tm.jpg\" height=\"320\" width=\"430\" border=\"1\" hspace=\"4\" vspace=\"4\" alt=\"Microscopic-Snow-Crystals-3\" \/><\/a><\/p>\n<p>The <strong>US Department of Agriculture<\/strong> apparently has a &#8220;Low Temperature Scanning Electron Microscope&#8221; at the <strong><a href=\"http:\/\/emu.arsusda.gov\/snowsite\/default.html\" target=\"_blank\">Beltsville Agricultural Research Center<\/a><\/strong> in Maryland that allows them to get some amazing photos of snowflakes, according to a post on Twisted Sifter.<\/p>\n<blockquote><p>Samples of snow, ice and associated life forms are collected by dislodging the crystals or biota from the face of a snow pit or the surface of the snow onto copper metal sample plates containing precooled methyl cellulose solution. Within fractions of a second these plates are plunged into a reservoir of liquid nitrogen which rapidly cools them to -196\u00b0C and attaches these pre-frozen materials to the plates.  . . After arrival at the Beltsville Electron Microscopy facility, the copper plates can be stored at -196\u00b0C in storage dewars. Selected samples are transferred to the preparation chamber for sputter coating with platinum. This renders them electrically conductive and they are placed on the pre-cooled (-170\u00b0C) stage of a Hitachi S-4100 field emission Scanning Electron Microscope where they are imaged and photographed. <\/p><\/blockquote>\n<p>So that&#8217;s how they do it. <strong><a href=\"http:\/\/twistedsifter.com\/2013\/03\/microscopic-images-of-snow-crystals\/\" target=\"_blank\">Click the link<\/a><\/strong> to see a few more of the images and then realizes that on a powder day we go blowing through billions of these crazy micro architectural masterpieces.<\/p>\n<p><strong>[Link: <\/strong><strong><a href=\"http:\/\/twistedsifter.com\/2013\/03\/microscopic-images-of-snow-crystals\/\" target=\"_blank\">Twisted Sifter<\/a><\/strong><strong> via <\/strong><strong><a href=\"http:\/\/boingboing.net\/2013\/03\/21\/snowflake-electron-microscope.html\" target=\"_blank\">Boing Boing<\/a><\/strong><strong>]<br \/>\n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The US Department of Agriculture apparently has a &#8220;Low Temperature Scanning Electron Microscope&#8221; at the Beltsville Agricultural Research Center in Maryland that allows them to get some amazing photos of snowflakes, according to a post on Twisted Sifter. Samples of snow, ice and associated life forms are collected by dislodging the crystals or biota from [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[11,4],"tags":[],"_links":{"self":[{"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/posts\/40756"}],"collection":[{"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=40756"}],"version-history":[{"count":1,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/posts\/40756\/revisions"}],"predecessor-version":[{"id":40757,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=\/wp\/v2\/posts\/40756\/revisions\/40757"}],"wp:attachment":[{"href":"http:\/\/www.boardistan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=40756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40756"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.boardistan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}