{"id":315857,"date":"2017-05-16T06:20:03","date_gmt":"2017-05-16T10:20:03","guid":{"rendered":"http:\/\/spaceweekly.com\/?guid=67531359989f0b9891bbc7e74591070a"},"modified":"2017-05-16T06:20:03","modified_gmt":"2017-05-16T10:20:03","slug":"a-giant-lava-lamp-inside-the-earth-might-be-flipping-the-planets-magnetic-field","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=315857","title":{"rendered":"A giant lava lamp inside the Earth might be flipping the planet&#8217;s magnetic field"},"content":{"rendered":"<p>If you could travel back in time 41,000 years to the last ice age, your compass would point south instead of north. That&#8217;s because for a period of a few hundred years, the Earth&#8217;s magnetic field was reversed. These reversals have happpened repeatedly over the planet&#8217;s history, sometimes lasting hundreds of thousands of years. We know this from the way it affects the formation of magnetic minerals, that we can now study on the Earth&#8217;s surface.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you could travel back in time 41,000 years to the last ice age, your compass would point south instead of north. That&#8217;s because for a period of a few hundred years, the Earth&#8217;s magnetic field was reversed. These reversals have happpened repeatedly o&#8230;<\/p>\n","protected":false},"author":0,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-315857","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/315857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=315857"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/315857\/revisions"}],"predecessor-version":[{"id":315858,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/315857\/revisions\/315858"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=315857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=315857"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=315857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}