{"id":918,"date":"2010-12-28T10:32:00","date_gmt":"2010-12-27T23:32:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2010\/12\/28\/blue-light-in-dark-ice-2\/"},"modified":"2025-07-21T10:33:21","modified_gmt":"2025-07-21T00:33:21","slug":"blue-light-in-dark-ice-2","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2010\/12\/28\/blue-light-in-dark-ice-2\/","title":{"rendered":"Blue Light in Dark Ice"},"content":{"rendered":"<p><a onblur=\"try {parent.deselectBloggerImageGracefully();} catch(e) {}\" href=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2010\/12\/pole_panorama-1.jpg\"><img decoding=\"async\" style=\"display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 77px;\" src=\"https:\/\/www.homebrewradio.us\/blog\/wp-content\/uploads\/2010\/12\/pole_panorama-1.jpg\" alt=\"\" id=\"BLOGGER_PHOTO_ID_5555679322964426738\" border=\"0\" \/><\/a>Down in Antarctica, the &#8220;Ice Cube&#8221; neutrino telescope was completed this month. It is an amazing piece of gear in an awesome location. Essentially, they use a 1 kilometer square piece of pure Antarctic ice as the detector &#8212; when a neutrino hits a water molecule, it makes a bit of blue light and from this light the direction of the neutrino can be determined. But there is a problem: cosmic rays can create the same kind of blue light. So there&#8217;s noise. They need a filter, right? Yes, and for this purpose they use&#8230; THE EARTH. They put the blue light detector at the TOP of the cube and look DOWN, down through the Earth! Only neutrinos get through. <\/p>\n<p>For more details: <a href=\"http:\/\/www.icecube.wisc.edu\/info\/explained.php\">http:\/\/www.icecube.wisc.edu\/info\/explained.php<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Down in Antarctica, the &#8220;Ice Cube&#8221; neutrino telescope was completed this month. It is an amazing piece of gear in an awesome location. Essentially, they use a 1 kilometer square piece of pure Antarctic ice as the detector &#8212; when a neutrino hits a water molecule, it makes a bit of blue light and from &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2010\/12\/28\/blue-light-in-dark-ice-2\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Blue Light in Dark Ice&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[209,13],"tags":[],"class_list":["post-918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-antarctica","category-astronomy"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=918"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/918\/revisions"}],"predecessor-version":[{"id":920,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/918\/revisions\/920"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/919"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}