{"id":4828,"date":"2010-07-07T06:49:32","date_gmt":"2010-07-07T06:49:32","guid":{"rendered":"http:\/\/scienceblogs.com\/principles\/2010\/07\/07\/links-for-2010-07-07\/"},"modified":"2010-07-07T06:49:32","modified_gmt":"2010-07-07T06:49:32","slug":"links-for-2010-07-07","status":"publish","type":"post","link":"https:\/\/chadorzel.com\/principles\/2010\/07\/07\/links-for-2010-07-07\/","title":{"rendered":"Links for 2010-07-07"},"content":{"rendered":"<ul class=\"delicious\">\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/physics.aps.org\/articles\/v3\/55\">Physics &#8211; Keeping atoms synchronized for better timekeeping<\/a><\/div>\n<div class=\"delicious-extended\">&#8220;Atomic clocks often have a limited coherence time due to the interactions between the constituent atoms. While it is usually very easy to use fewer atoms to reduce the interactions, this leads to lower signal-to-noise and less precise measurements. This tension between strong interactions and noise seems unavoidable and limits the accuracy of the world&#8217;s best cesium clocks, the keepers of international atomic time. As reported in a paper in Physical Review Letters, Christian Deutsch and coworkers at three laboratories in Paris, France, have circumvented this seemingly unavoidable compromise by showing that a clock&#8217;s coherence can actually be enhanced by strong atomic interactions. Even better, strong atomic interactions might also reduce the clock&#8217;s systematic frequency shifts.&#8221;<\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/physics\">physics<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/atoms\">atoms<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/time\">time<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/quantum\">quantum<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/precision-measurement\">precision-measurement<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/news\">news<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/articles\">articles<\/a>)<\/div>\n<\/li>\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/www.nytimes.com\/2010\/07\/06\/science\/06atom.html?_r=2&amp;ref=science&amp;pagewanted=all\">X-Ray Laser Resurrects a Laboratory No Longer in the Vanguard &#8211; NYTimes.com<\/a><\/div>\n<div class=\"delicious-extended\">&#8220;The linear accelerator [at the Stanford Linear Accelerator Center]&#8211; the same one that discovered the charm quarks, now more than 40 years old &#8212; still accelerates electrons, but now as part of the X-ray laser. Instead of the electrons being directed onto a collision course at near-light speeds, they slalom through sinuous magnetic fields. As the electrons wiggle, they emit X-rays, and with precise wiggling, the X-rays coalesce into a laser beam.<\/p>\n<p>At the end of the magnetic slalom, a large magnet siphons off the electrons while the X-ray photons continue onward to the experiments. The sheer number of them clumped into ultrashort pulses enables new types of science. &#8220;<\/p><\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/science\">science<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/physics\">physics<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/experiment\">experiment<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/news\">news<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/lasers\">lasers<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/atoms\">atoms<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/molecules\">molecules<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/nytimes\">nytimes<\/a>)<\/div>\n<\/li>\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/www.slate.com\/id\/2258507\/pagenum\/all\/\">Slate readers provide 10 tips on how to reduce your food waste. &#8211; By Nina Shen Rastogi &#8211; Slate Magazine<\/a><\/div>\n<div class=\"delicious-extended\">&#8220;A few weeks ago, after serving up some sobering statistics about food waste in America, the Lantern put out a call for your best tips on how to avoid refrigerator rot. Nearly 200 of you responded, with some big suggestions (move to a place within walking distance of a grocery store) and small ones (grow your own herbs). Here are 10 key lessons that emerged from your letters and comments.&#8221;<\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/food\">food<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/environment\">environment<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/blogs\">blogs<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/slate\">slate<\/a>)<\/div>\n<\/li>\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/www.slate.com\/id\/2258112\/entry\/2258111\/?from=rss\">Wild, weird, wonderful stories about the elements that make up our universe. (1) &#8211; By Sam Kean &#8211; Slate Magazine<\/a><\/div>\n<div class=\"delicious-extended\">&#8220;Starting today, I&#8217;ll be posting on a different element each weekday (the blog will run through early August), starting with the racy history of an element we&#8217;ve known about for hundreds of years, antimony, and ending on an element we&#8217;ve only just discovered, the provisionally named ununseptium. I&#8217;ll be covering many topics&#8211;explaining how the table works, relaying stories both funny and tragic, and analyzing current events through the lens of the table and its elements. Above all, I hope to convey the unexpected joys of the most diverse and colorful tool in all of science.&#8221;<\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/science\">science<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/chemistry\">chemistry<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/atoms\">atoms<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/slate\">slate<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/history\">history<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/physics\">physics<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/blogs\">blogs<\/a>)<\/div>\n<\/li>\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/slushpilehell.tumblr.com\/\">SlushPile Hell<\/a><\/div>\n<div class=\"delicious-extended\">&#8221;   &#8221; God told me to write this book and that it would become a bestseller.&#8221;<\/p>\n<p>I talked to God. He said he was just messing with you.&#8221;<\/p><\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/writing\">writing<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/publishing\">publishing<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/blogs\">blogs<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/books\">books<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/silly\">silly<\/a>)<\/div>\n<\/li>\n<li>\n<div class=\"delicious-link\"><a href=\"http:\/\/imgur.com\/OcuGU\">imgur: The Simple Image Sharer<\/a><\/div>\n<div class=\"delicious-extended\">Rawr!<\/div>\n<div class=\"delicious-tags\">(tags: <a href=\"http:\/\/delicious.com\/orzelc\/kid-stuff\">kid-stuff<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/silly\">silly<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/dinosaurs\">dinosaurs<\/a> <a href=\"http:\/\/delicious.com\/orzelc\/pictures\">pictures<\/a>)<\/div>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Physics &#8211; Keeping atoms synchronized for better timekeeping &#8220;Atomic clocks often have a limited coherence time due to the interactions between the constituent atoms. While it is usually very easy to use fewer atoms to reduce the interactions, this leads to lower signal-to-noise and less precise measurements. This tension between strong interactions and noise seems&hellip; <a class=\"more-link\" href=\"https:\/\/chadorzel.com\/principles\/2010\/07\/07\/links-for-2010-07-07\/\">Continue reading <span class=\"screen-reader-text\">Links for 2010-07-07<\/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":[21],"tags":[],"class_list":["post-4828","post","type-post","status-publish","format-standard","hentry","category-links_dump","entry"],"_links":{"self":[{"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/4828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/comments?post=4828"}],"version-history":[{"count":0,"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/4828\/revisions"}],"wp:attachment":[{"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/media?parent=4828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/categories?post=4828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/tags?post=4828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}