{"id":796690,"date":"2025-06-17T11:25:04","date_gmt":"2025-06-17T16:25:04","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=796690"},"modified":"2025-06-17T11:25:04","modified_gmt":"2025-06-17T16:25:04","slug":"hearing-earths-magnetic-field-switch-poles-780-000-years-ago","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=796690","title":{"rendered":"Hearing Earth\u2019s magnetic field switch poles 780 000 years ago"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div id=\"modal__tab-content--details\">\n<div class=\"modal__tab-description\">\n<p>One of the most drastic events in the evolution of Earth&#8217;s magnetic field is a geomagnetic reversal, when the poles switch position. During a reversal, the magnetic field is significantly weakened and exhibits a complex, multi-polar structure. Throughout its history, Earth&#8217;s magnetic field has reversed many times. The most recent reversal took place approximately 780 000 years ago and is called the Matuyama-Brunhes reversal.<\/p>\n<p>Based on paleomagnetic data inferred from sediments, taken from drill cores all over the globe, researchers at the Helmholtz Centre for Geosciences (GFZ) in Potsdam, Germany have constructed a global model of the magnetic field before, during and after the reversal.<\/p>\n<p>To visualise the complex dynamics, the video follows the evolution of a surface of constant strength during the reversal. Three violins and three cellos form a six-voice musical piece that follows the field evolution as well, leading to a disharmonic cacophony during the reversal.<\/p>\n<\/p><\/div>\n<p>\t\t\t<label style=\"display: block; font-size: 0.9em; color: #8197A6; margin: 3rem 0 -1rem 0;\">Embed code<\/label><br \/>\n\t\t\t\t\t\t\t<textarea rows=\"4\" cols=\"60\"><a href=\"https:\/\/www.youtube.com\/watch?v=_blivWRpp80\">https:\/\/www.youtube.com\/watch?v=_blivWRpp80<\/a><\/textarea><\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.esa.int\/ESA_Multimedia\/Videos\/2025\/06\/Hearing_Earth_s_magnetic_field_switch_poles_780_000_years_ago?rand=772187\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the most drastic events in the evolution of Earth&#8217;s magnetic field is a geomagnetic reversal, when the poles switch position. During a reversal, the magnetic field is significantly&hellip; <\/p>\n","protected":false},"author":1,"featured_media":796691,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-796690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/796690","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"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=796690"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/796690\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/796691"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=796690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=796690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=796690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}