{"id":8111,"date":"2017-01-17T00:55:48","date_gmt":"2017-01-17T07:55:48","guid":{"rendered":"http:\/\/BigJimIndustries.com\/wordpress\/?p=8111"},"modified":"2017-01-16T13:58:17","modified_gmt":"2017-01-16T20:58:17","slug":"the-big-magnet","status":"publish","type":"post","link":"https:\/\/bigjimindustries.com\/wordpress\/2017\/01\/17\/the-big-magnet\/","title":{"rendered":"The Big Magnet"},"content":{"rendered":"<p><a href=\"https:\/\/www.newscientist.com\/article\/mg23331080-200-the-paradox-powering-earths-magnetic-field\/\" target=\"_blank\"><em>from New Scientist<\/em><\/a><\/p>\n<h1>The paradox powering Earth\u2019s magnetic field<\/h1>\n<p><strong>Our planet\u2019s protective force field appears to be billions of years older than the mechanism that got it going. So what really made Earth magnetic?<\/strong><\/p>\n<p>By\u00a0Marcus Woo<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/d1o50x50snmhul.cloudfront.net\/wp-content\/uploads\/2017\/01\/11180000\/iss023-e-58455-800x533.jpg\" alt=\"magnet lead\" width=\"480\" \/><em>Earth Science and Remote Sensing Unit, NASA Johnson Space Center<\/em><\/p>\n<p>IT IS Earth\u2019s silent defender. Without it, a constant onslaught of charged particles would bombard our planet\u2019s atmosphere, changing its chemistry and disrupting our electronic infrastructure. Assuming any of that stuff was even there to disrupt. In Earth\u2019s infancy, our guardian may have prevented the sun\u2019s action from stripping away the protective bubble of gas surrounding our planet entirely, and so allowed life \u2013 and eventually intelligent life \u2013 to flourish.<\/p>\n<p>This silent defender is Earth\u2019s magnetic field, a force field whose source lies in the churning molten iron that forms the planet\u2019s core. Electrons flowing through this fluid generate an electric current, which in turn creates a magnetic field. The core is a giant, self-sustaining electromagnet: a dynamo.<\/p>\n<p>[ <a href=\"https:\/\/www.newscientist.com\/article\/mg23331080-200-the-paradox-powering-earths-magnetic-field\/\" target=\"_blank\">click to continue reading at New Scientist<\/a> ]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>from New Scientist The paradox powering Earth\u2019s magnetic field Our planet\u2019s protective force field appears to be billions of years older than the mechanism that got it going. So what really made Earth magnetic? By\u00a0Marcus Woo Earth Science and Remote Sensing Unit, NASA Johnson Space Center IT IS Earth\u2019s silent defender. Without it, a constant [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-8111","post","type-post","status-publish","format-standard","hentry","category-weirdness"],"_links":{"self":[{"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/posts\/8111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/comments?post=8111"}],"version-history":[{"count":0,"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/posts\/8111\/revisions"}],"wp:attachment":[{"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/media?parent=8111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/categories?post=8111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bigjimindustries.com\/wordpress\/wp-json\/wp\/v2\/tags?post=8111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}