{"id":115492,"date":"2024-10-18T08:14:47","date_gmt":"2024-10-18T01:14:47","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=115492"},"modified":"2024-10-18T08:14:47","modified_gmt":"2024-10-18T01:14:47","slug":"earths-flipping-magnetic-field-heard-as-sound-is-an-unforgettable-horror-sciencealert","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=115492","title":{"rendered":"Earth&#8217;s Flipping Magnetic Field Heard as Sound Is an Unforgettable Horror : ScienceAlert"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p>Earth&#8217;s magnetic field <a href=\"https:\/\/www.sciencealert.com\/earth-s-magnetic-field-flipped-42-000-years-ago-with-dramatic-consequences\">dramatically flipped<\/a> a little more than 40,000 years ago. We can now experience this upheaval as an unnerving clatter interpreted from information collected by <span style=\"font-weight: 400;\">the European Space Agency&#8217;s<\/span> <a href=\"https:\/\/www.esa.int\/Applications\/Observing_the_Earth\/FutureEO\/Swarm\">Swarm<\/a> satellite mission.<\/p>\n<p>Combining the satellite data with evidence of <a href=\"https:\/\/www.sciencealert.com\/earth-s-magnetic-poles-could-flip-more-frequently-than-we-previously-thought\">magnetic field line movements on Earth<\/a>, European geoscientists mapped the so-called Laschamps event and represented it using natural noises like the creaking of wood and the crashing of colliding rocks.<\/p>\n<p>The resulting compilation from the Technical University of Denmark and the German Research Center for Geosciences is unlike anything you&#8217;ve ever heard.<\/p>\n<p><iframe loading=\"lazy\" title=\"Sound of Earth\u2019s magnetic flip 41 000 years ago\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/6Tc7XI0iUYU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe> frameborder=&#8221;0\u2033 allow=&#8221;accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share&#8221; referrerpolicy=&#8221;strict-origin-when-cross-origin&#8221; allowfullscreen&gt;<\/iframe><\/p>\n<p>Generated by the swirling liquid metals in our planet&#8217;s core, <a href=\"https:\/\/en.wikipedia.org\/wiki\/Earth%27s_magnetic_field\">Earth&#8217;s magnetic field<\/a> reaches <a href=\"https:\/\/sci.esa.int\/web\/cluster\/-\/31313-earth-s-magnetic-field\">tens to hundreds<\/a> of thousands of kilometers into space, protecting us all by deflecting atmosphere-stripping solar particles.<\/p>\n<p>In its current orientation, the field lines form closed loops that are directed south to north above the planet&#8217;s surface, and then north to south deep within it. Yet every so often the field randomly flips its polarity. Were this to happen again today, our north-pointing compasses would point to the South Pole.<\/p>\n<p>The last such cataclysmic event occurred about 41,000 years ago, leaving a signature in the Laschamps lava flows in France. As the field weakened to only 5 percent of its current strength the reversal process allowed a surpluss of cosmic rays to pass into Earth&#8217;s atmosphere.<\/p>\n<p>Ice and marine sediment preserve isotopic signatures of this higher-than-normal solar bombardment, with levels of beryllium-10 isotopes doubling during the Laschamps event, according to <a href=\"https:\/\/doi.org\/10.1016\/j.epsl.2020.116547\">a study published earlier this year<\/a>.<\/p>\n<p>These altered atoms are formed when cosmic rays react with our atmosphere, ionizing the air and frying the <a href=\"https:\/\/www.sciencealert.com\/ozone\" class=\"lar_link lar_link_outgoing\" data-linkid=\"73068\" data-postid=\"140509\" rel=\"nofollow noopener\" target=\"_self\">ozone<\/a> layer. With global <a href=\"https:\/\/www.sciencealert.com\/climate-change\" class=\"lar_link lar_link_outgoing\" data-linkid=\"73046\" data-postid=\"140509\" rel=\"nofollow noopener\" target=\"_self\">climate change<\/a> being a potential consequence, it&#8217;s speculated the extinction of Australia&#8217;s megafauna as well as changes in human cave use may have been<a href=\"https:\/\/www.sciencealert.com\/earth-s-magnetic-field-flipped-42-000-years-ago-with-dramatic-consequences\"> associated with this event<\/a>.<\/p>\n<p>&#8220;Understanding these extreme events is important for their occurrence in the future, space climate predictions, and assessing the effects on the environment and on the Earth system,&#8221; German Research Center for Geosciences geophysics Sanja Panovska <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1041098\">explained at the time<\/a>.<\/p>\n<p>It took 250 years for the Laschamps reversal to take place and it stayed in the unusual orientation for about 440 years. At most, Earth&#8217;s magnetic field may have remained at 25 percent of its current strength as the north polarity drifted to the south.<\/p>\n<p>Recent magnetic field anomalies like <a href=\"https:\/\/www.sciencealert.com\/nasa-is-tracking-the-mysterious-evolving-anomaly-in-earth-s-magnetic-field\">the weakening over the Atlantic ocean<\/a> have led to questions about an impending reversal today, <a href=\"https:\/\/www.sciencealert.com\/a-9-000-year-old-timeline-of-our-planet-s-magnetic-field-shows-why-we-shouldn-t-panic\">but recent research<\/a> suggests these anomalies are not necessarily connected to flipping events.<\/p>\n<p>The <a href=\"https:\/\/en.wikipedia.org\/wiki\/South_Atlantic_Anomaly\">South Atlantic anomaly<\/a> is, however, exposing satellites in the area to higher levels of radiation.<\/p>\n<p>Since 2013, ESA&#8217;s Swarm constellation has been measuring magnetic signals from Earth&#8217;s core, mantle, crust, oceans, ionosphere, and magnetosphere so we can better understand our planet&#8217;s geomagnetic field and predict its fluctuations.<\/p>\n<\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.sciencealert.com\/earths-flipping-magnetic-field-heard-as-sound-is-an-unforgettable-horror\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Earth&#8217;s magnetic field dramatically flipped a little more than 40,000 years ago. We can now experience this upheaval as an unnerving clatter interpreted from information collected by the European Space &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=115492\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-115492","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/115492","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=115492"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/115492\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=115492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=115492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=115492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}