{"id":159,"date":"2010-03-03T17:59:24","date_gmt":"2010-03-04T01:59:24","guid":{"rendered":"http:\/\/universesandbox.com\/blog\/?p=159"},"modified":"2010-03-03T18:01:14","modified_gmt":"2010-03-04T02:01:14","slug":"earths-day-just-got-shorter","status":"publish","type":"post","link":"https:\/\/universesandbox.com\/blog\/2010\/03\/earths-day-just-got-shorter\/","title":{"rendered":"Earth&#8217;s Day Just Got Shorter"},"content":{"rendered":"<p><a href=\"https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-160\" title=\"Earth-SouthAmerica\" src=\"https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica-300x300.png 300w, https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica-150x150.png 150w, https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica-64x64.png 64w, https:\/\/universesandbox.com\/blog\/wp-content\/uploads\/2010\/03\/Earth-SouthAmerica.png 423w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>The major Chile earthquake a few days ago appears to have <strong>shortened the length of Earth&#8217;s day by 1.26 microseconds<\/strong> (1.26 \u00d7 10<sup>-6<\/sup> or 0.00000126 seconds) and moved its axis by about 8 cm (3 in).<\/p>\n<h3>How could this happen?<\/h3>\n<p>Have you ever spun around in a chair and noticed that moving your arms in or out changed your speed? When you put your arms out you rotate slower and pulling them in makes you spin faster. It would seem that the earthquake caused a notable chunk of Earth&#8217;s mass to move closer to the center which caused the spinning Earth to speed up.<\/p>\n<p><em>Source:\u00a0<span style=\"font-style: normal;\"><a href=\"http:\/\/blogs.discovermagazine.com\/discoblog\/2010\/03\/02\/chile-quake-shifted-earths-axis-shortened-the-length-of-a-day\/\">Discoblog<\/a> &amp;\u00a0<a href=\"http:\/\/edition.cnn.com\/2010\/WORLD\/americas\/03\/02\/chile.quake\/\">CNN<\/a><\/span><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The major Chile earthquake a few days ago appears to have shortened the length of Earth&#8217;s day by 1.26 microseconds (1.26 \u00d7 10-6 or 0.00000126 seconds) and moved its axis by about 8 cm (3 in). How could this happen? Have you ever spun around in a chair and noticed that moving your arms in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-159","post","type-post","status-publish","format-standard","hentry","category-astronomy"],"_links":{"self":[{"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/posts\/159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/comments?post=159"}],"version-history":[{"count":7,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/posts\/159\/revisions"}],"predecessor-version":[{"id":166,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/posts\/159\/revisions\/166"}],"wp:attachment":[{"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/media?parent=159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/categories?post=159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/universesandbox.com\/blog\/wp-json\/wp\/v2\/tags?post=159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}