{"id":54,"date":"2006-02-07T07:40:01","date_gmt":"2006-02-07T07:40:01","guid":{"rendered":"http:\/\/scienceblogs.com\/principles\/2006\/02\/07\/physics-blog-notes\/"},"modified":"2006-02-07T07:40:01","modified_gmt":"2006-02-07T07:40:01","slug":"physics-blog-notes","status":"publish","type":"post","link":"http:\/\/chadorzel.com\/principles\/2006\/02\/07\/physics-blog-notes\/","title":{"rendered":"Physics Blog Notes"},"content":{"rendered":"<p><P>There was an <A HREF=\"http:\/\/physicsweb.org\/articles\/world\/19\/2\/4\/1\">article about physics blogs<\/A> a little while back in <CITE>Physics World<\/CITE>, that didn&#8217;t mention me by name, but did link to the Steelypips site. It mostly talks up the informal information exchange side of things. <\/p>\n<p><P>In that spirit, here are some things I found via physics blog (mostly through <A HREF=\"http:\/\/mixedstates.somethingsimilar.com\/\">Mixed States<\/A> (after the cut):<\/p>\n<p><!--more--><br \/>\n<P>If you were wondering when to expect your <A HREF=\"http:\/\/scienceblogs.com\/principles\/2006\/02\/show_me_the_pony_1.php\">pony<\/A>, Steinn Sigurdsson at Dynamics of Cats has an <A HREF=\"http:\/\/catdynamics.blogspot.com\/2006\/02\/not-science-agency.html\">exhaustive analysis of the budget requests<\/A> of various science agencies (start with that link, and work your way up through the more recent posts). Verdict: no pony for you!<\/p>\n<p><P>Former Quantum Diarist Gordon Watts <A HREF=\"http:\/\/gordonwatts.wordpress.com\/2006\/02\/07\/nasa-public-relations-reversed\/\">comments on George Deutsch<\/A>, and provides a new bit that I hadn&#8217;t seen before: a link to a <A HREF=\"http:\/\/blogs.salon.com\/0002874\/2006\/02\/04.html#a2120\">collection of excerpts of Deutsch&#8217;s student writing<\/A>. They&#8217;re about what you&#8217;d expect.<\/p>\n<p><P>In Actual Science News, there&#8217;s been a bit of excitement in astrophysical circes regarding some measurements that purport to determine the temperature of dark matter. P.P. Cook is your <A HREF=\"http:\/\/ppcook.blogspot.com\/2006\/02\/dark-matters_113925573413230790.html\">one-stop shopping spot<\/A> for links to the original sources.<\/p>\n<p><P>Unfortunately, those original sources are all stories in the mass media, not scientific journals, or even scientific preprints, so take it with a grain of salt. If the observation holds up, though, expect this to be very big news, because the temperature they report is several orders of magnitude higher than previously expected. Most theories I&#8217;ve heard (including a terrific colloquium talk last week by <A HREF=\"http:\/\/www.physics.rutgers.edu\/~spekkens\/\">Kristine Spekkens<\/A>) emphasize that dark matter is cold&#8211; a few Kelvin or less. The new observations claim a temperature of about 10,000 K, or a bit hotter than the surface of the Sun.  Explaining that, if it holds up, will take some work.<\/p>\n<p><P>(This is not my area of research, but this year&#8217;s coloquium coordinator is an astonomer working on dark matter, so I&#8217;ve heard a lot of talks about dark matter in galaxies&#8230;)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There was an article about physics blogs a little while back in Physics World, that didn&#8217;t mention me by name, but did link to the Steelypips site. It mostly talks up the informal information exchange side of things. In that spirit, here are some things I found via physics blog (mostly through Mixed States (after&hellip; <a class=\"more-link\" href=\"http:\/\/chadorzel.com\/principles\/2006\/02\/07\/physics-blog-notes\/\">Continue reading <span class=\"screen-reader-text\">Physics Blog Notes<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"1","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,5,7,28,11,12],"tags":[],"class_list":["post-54","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-blogs","category-physics","category-politics","category-science","category-war_on_science","entry"],"_links":{"self":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/54","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":0,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/54\/revisions"}],"wp:attachment":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/media?parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/categories?post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/tags?post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}