{"id":343468,"date":"2010-02-20T12:45:00","date_gmt":"2010-02-20T17:45:00","guid":{"rendered":"tag:blogger.com,1999:blog-5587346.post-829847518853533735"},"modified":"2010-02-20T12:55:13","modified_gmt":"2010-02-20T17:55:13","slug":"iot-radiation-gamma-and-x-rays","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/343468","title":{"rendered":"IOT Radiation: Gamma and X-rays"},"content":{"rendered":"<p><a href=\"http:\/\/www.bbc.co.uk\/programmes\/b00nqljy\">In Our Time, Radiation<\/a> is a superb 50 minute review of 19th century physics &#8212; with bits before and beyond. This is the physics that brought us much of the modern world &#8211; though for GPS we needed Einstein.<\/p>\n<div><\/div>\n<div>Listening again to how physics became ether-free I couldn&#8217;t help but recall the old <a href=\"http:\/\/en.wikipedia.org\/wiki\/The_medium_is_the_message\">McCluhan meme &#8211;&#8220;The medium is the message&#8221;<\/a>. Deep, man.<\/div>\n<div><\/div>\n<div>I also finally learned the relationship between Gamma Rays (Hulk) and X-Rays (Superman). In retrospect, I&#8217;ve been forever confused by the alpha, beta, gamma particle nomenclature.<\/div>\n<div><\/div>\n<div>For the few who might be as unknowingly confused as I&#8217;ve been all my life, X-rays are forms of light (EM radiation) associated with electron transitions. Gamma rays are forms of light (EM radiation) associated with processes in the atomic nucleus. (<a href=\"http:\/\/en.wikipedia.org\/wiki\/Gamma_ray\">A wikipedia article on Gamma Rays<\/a> suggests my confusion arose in part due to the redefinition of Gamma and X-rays over the past thirty years.)<\/div>\n<div><\/div>\n<div>Alpha and beta &#8220;radiation&#8221;, on the other hand, isn&#8217;t electromagnetic (light) radiation &#8212; it&#8217;s particle <i>emission<\/i>. The confusion between alpha, beta and gamma &#8220;radiation&#8221; arose when they were discovered and named together.<\/div>\n<div><\/div>\n<div>Of course I&#8217;m sure I&#8217;ve got something wrong in this summary, but it does feel like progress.<br \/>&#8212;<br \/><small><a href=\"feed:\/\/www.google.com\/reader\/public\/atom\/user\/06457543619879090746\/state\/com.google\/broadcast\">My Google Reader Shared items (feed)<\/a><\/small><\/div>\n<div class=\"blogger-post-footer\"><img width='1' height='1' src='https:\/\/blogger.googleusercontent.com\/tracker\/5587346-829847518853533735?l=notes.kateva.org' alt='' \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In Our Time, Radiation is a superb 50 minute review of 19th century physics &#8212; with bits before and beyond. This is the physics that brought us much of the modern world &#8211; though for GPS we needed Einstein. Listening again to how physics became ether-free I couldn&#8217;t help but recall the old McCluhan meme [&hellip;]<\/p>\n","protected":false},"author":711,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-343468","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/343468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/711"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=343468"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/343468\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=343468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=343468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=343468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}