{"id":6706,"date":"2010-10-01T11:29:24","date_gmt":"2010-10-01T16:29:24","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=6706"},"modified":"2010-10-01T11:29:24","modified_gmt":"2010-10-01T16:29:24","slug":"i-see-what-you-did-there","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/6706","title":{"rendered":"I See What You Did There"},"content":{"rendered":"<p><a href=\"http:\/\/www.newscientist.com\/article\/mg20827804.600-sound-can-leap-across-a-vacuum-after-all.html\">Sound can leap across a vacuum after all<\/a><\/p>\n<p>I saw this <a href=\"http:\/\/twitter.com\/newscientist\/status\/26080272156\">retweeted by Jennifer<\/a>, but sorry \u2014 No, it can&#8217;t.<\/p>\n<blockquote><p>When a sound wave reaches the edge of one crystal, the electric field associated with it can stretch across the gap and deform the crystal on the other side, creating sound waves in that second crystal (Physical Review Letters, vol 105, p 125501). &#8220;It is as if the sound waves don&#8217;t even recognise the vacuum &#8211; they just go through,&#8221; says Prunnila.<\/p><\/blockquote>\n<p>This is the kind of writing that really, really annoys me.  Redefining terms in order to sensationalize the material.  <em>Sound<\/em> doesn&#8217;t jump across the vacuum barrier \u2014 an electric field does, and that&#8217;s perfectly cromulent.  The electric field causes the piezoelectric transducer on the other side to vibrate and recreate the sound.  Neat.  But if this counts as sound going through a vacuum, then transmissions using a satellite has to count, too.  We&#8217;ve been doing this for more than 50 years.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sound can leap across a vacuum after all I saw this retweeted by Jennifer, but sorry \u2014 No, it can&#8217;t. When a sound wave reaches the edge of one crystal, the electric field associated with it can stretch across the &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/6706\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,39,53],"tags":[],"class_list":["post-6706","post","type-post","status-publish","format-standard","hentry","category-journalism","category-physics","category-tech"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/6706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=6706"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/6706\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=6706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=6706"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=6706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}