{"id":27186,"date":"2025-08-28T12:00:43","date_gmt":"2025-08-28T10:00:43","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=27186"},"modified":"2025-08-26T08:46:01","modified_gmt":"2025-08-26T06:46:01","slug":"le-bruit-du-champ-magnetique-terrestre-qui-sinverse-hante-les-esprits-depuis-780-000-ans","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/le-bruit-du-champ-magnetique-terrestre-qui-sinverse-hante-les-esprits-depuis-780-000-ans\/","title":{"rendered":"Le bruit du champ magn\u00e9tique terrestre qui s&rsquo;inverse hante les esprits depuis 780 000 ans"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>En 2024, des chercheurs ont transform\u00e9 les mesures d&rsquo;un bouleversement \u00e9pique du champ magn\u00e9tique terrestre survenu il y a 41 000 ans en une exp\u00e9rience auditive \u00e9trange.<\/p>\n<p>Aujourd&rsquo;hui, une \u00e9quipe compos\u00e9e de certains de ces m\u00eames scientifiques a sonifi\u00e9 un renversement encore plus ancien, datant d&rsquo;\u00e9poques lointaines.<\/p>\n<p>La cacophonie qui en r\u00e9sulte est une traduction troublante des donn\u00e9es g\u00e9ologiques sur le renversement Matuyama-Brunhes, un changement des p\u00f4les magn\u00e9tiques de la plan\u00e8te qui s&rsquo;est produit il y a environ 780 000 ans.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/_blivWRpp80?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Les g\u00e9ophysiciens Sanja Panovska et Ahmed Nasser Mahgoub du Centre Helmholtz de g\u00e9osciences (GFZ) ont cr\u00e9\u00e9 un mod\u00e8le global du champ magn\u00e9tique terrestre lors de l&rsquo;\u00e9v\u00e9nement, \u00e0 partir de donn\u00e9es magn\u00e9tiques anciennes recueillies dans des s\u00e9diments provenant de carottes de forage du monde entier. Ces donn\u00e9es ont ensuite \u00e9t\u00e9 visualis\u00e9es par Maximilian Arthus Schanner et sonifi\u00e9es par Klaus Nielsen et Schanner.<\/p>\n<p>Le champ magn\u00e9tique terrestre est g\u00e9n\u00e9r\u00e9 par les m\u00e9taux liquides bouillonnants dans les profondeurs de la cro\u00fbte terrestre. S&rsquo;\u00e9tendant sur des dizaines, voire des centaines de kilom\u00e8tres dans l&rsquo;espace, ce champ d\u00e9vie les particules qui d\u00e9truisent l&rsquo;atmosph\u00e8re, assurant ainsi notre s\u00e9curit\u00e9 \u00e0 tous.<\/p>\n<p>Le bombardement de rayonnement solaire qui s&rsquo;infiltre lors des inversions de polarit\u00e9 augmente les niveaux de b\u00e9ryllium-10 dans l&rsquo;atmosph\u00e8re terrestre, lesquels peuvent \u00e0 leur tour \u00eatre pr\u00e9serv\u00e9s dans des \u00e9chantillons de carottes de glace . La mesure des fluctuations de ces isotopes permet alors de mesurer efficacement l&rsquo;affaiblissement du champ.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<figure id=\"attachment_27187\" aria-describedby=\"caption-attachment-27187\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"27187\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-bruit-du-champ-magnetique-terrestre-qui-sinverse-hante-les-esprits-depuis-780-000-ans\/structure-magnetique-de-la-terre\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Structure-magnetique-de-la-Terre.png?fit=642%2C337&amp;ssl=1\" data-orig-size=\"642,337\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Structure magn\u00e9tique de la Terre\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Structure magn\u00e9tique de la Terre. ( NOAA NCEI )&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Structure-magnetique-de-la-Terre.png?fit=642%2C337&amp;ssl=1\" class=\"size-full wp-image-27187\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Structure-magnetique-de-la-Terre.png?resize=642%2C337&#038;ssl=1\" alt=\"\" width=\"642\" height=\"337\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Structure-magnetique-de-la-Terre.png?w=642&amp;ssl=1 642w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Structure-magnetique-de-la-Terre.png?resize=300%2C157&amp;ssl=1 300w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-27187\" class=\"wp-caption-text\">Structure magn\u00e9tique de la Terre. ( NOAA NCEI )<\/figcaption><\/figure>\n<p>Les donn\u00e9es montrent que lorsque les p\u00f4les magn\u00e9tiques de la Terre s&rsquo;agitent, ils ne se contentent pas d&rsquo;\u00e9changer leurs places proprement, mais se d\u00e9placent au ralenti, se divisant en masses et fusionnant de mani\u00e8re ivre.<\/p>\n<p>Le bouillonnement al\u00e9atoire r\u00e9sultant de nombreuses polarit\u00e9s magn\u00e9tiques \u00e0 travers la plan\u00e8te est bien visualis\u00e9 dans l&rsquo;animation.<\/p>\n<figure id=\"attachment_27188\" aria-describedby=\"caption-attachment-27188\" style=\"width: 624px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"27188\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/le-bruit-du-champ-magnetique-terrestre-qui-sinverse-hante-les-esprits-depuis-780-000-ans\/simulation-changement-magnetique-de-la-terre\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/simulation-changement-magnetique-de-la-terre.jpg?fit=448%2C245&amp;ssl=1\" data-orig-size=\"448,245\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"simulation changement magn\u00e9tique de la terre\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Exemple simul\u00e9 de l&amp;rsquo;effet du champ magn\u00e9tique terrestre lors d&amp;rsquo;une inversion. Les lignes bleues repr\u00e9sentent les champs magn\u00e9tiques pointant vers le centre de la Terre, les lignes dor\u00e9es pointant dans la direction oppos\u00e9e. ( NASA )&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/simulation-changement-magnetique-de-la-terre.jpg?fit=448%2C245&amp;ssl=1\" class=\" wp-image-27188\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/simulation-changement-magnetique-de-la-terre.jpg?resize=624%2C341&#038;ssl=1\" alt=\"\" width=\"624\" height=\"341\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/simulation-changement-magnetique-de-la-terre.jpg?w=448&amp;ssl=1 448w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/simulation-changement-magnetique-de-la-terre.jpg?resize=300%2C164&amp;ssl=1 300w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><figcaption id=\"caption-attachment-27188\" class=\"wp-caption-text\">Exemple simul\u00e9 de l&rsquo;effet du champ magn\u00e9tique terrestre lors d&rsquo;une inversion. Les lignes bleues repr\u00e9sentent les champs magn\u00e9tiques pointant vers le centre de la Terre, les lignes dor\u00e9es pointant dans la direction oppos\u00e9e. ( NASA )<\/figcaption><\/figure>\n<p>Nos anc\u00eatres humains primitifs, tels que l&rsquo;Homo erectus, ont surv\u00e9cu \u00e0 cet \u00e9v\u00e9nement, qui aurait dur\u00e9 jusqu&rsquo;\u00e0 22 000 ans (bien que cette estimation fasse encore l&rsquo;objet de d\u00e9bats).<\/p>\n<p>Il est probable que nos anc\u00eatres et les autres formes de vie sur Terre aient subi certaines cons\u00e9quences \u00e0 l&rsquo;\u00e9poque, car la magn\u00e9tosph\u00e8re nous prot\u00e8ge des rayonnements cosmiques et solaires. D&rsquo;autres d\u00e9rives du champ magn\u00e9tique ont \u00e9t\u00e9 associ\u00e9es \u00e0 des changements climatiques spectaculaires.<\/p>\n<p>Mais les cons\u00e9quences exactes de cet \u00e9v\u00e9nement survenu il y a pr\u00e8s de 800 000 ans restent floues, car les archives anthropologiques de cette p\u00e9riode sont rares.<\/p>\n<p>Grav\u00e9 de mani\u00e8re audacieuse dans le flux de lave en cours de solidification \u00e0 travers la Terre, l&rsquo;\u00e9v\u00e9nement Matuyama-Brunhes est utilis\u00e9 par les g\u00e9ologues comme marqueur du d\u00e9but du Pl\u00e9istoc\u00e8ne moyen. Sous forme sonore, c&rsquo;est une chanson envo\u00fbtante qui a pr\u00e9par\u00e9 le terrain \u00e0 l&rsquo;\u00e9mergence des humains modernes.<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" target=\"_blank\" rel=\"noopener\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/www.sciencealert.com\/sound-of-earths-flipping-magnetic-field-haunts-again-from-780000-years-ago\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencealert.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"27186\">(158)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>En 2024, des chercheurs ont transform\u00e9 les mesures d&rsquo;un bouleversement \u00e9pique du champ magn\u00e9tique terrestre survenu il y a 41&#8230;<\/p>\n","protected":false},"author":1,"featured_media":27190,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[31],"tags":[8251,1202,6841,1626,8250,130,401,320,75],"class_list":["post-27186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","tag-780000-ans","tag-champ-magnetique","tag-changement-de-pole","tag-evenement","tag-matuyama-brunhes","tag-monde","tag-nord","tag-sud","tag-terre","wpcat-31-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/08\/Magnetosphere-Terre-vent-solaire.webp?fit=1024%2C415&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-74u","jetpack-related-posts":[{"id":20193,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-arbre-tres-ancien-decouvert-contiendrait-la-preuve-dune-inversion-du-champ-magnetique-terrestre\/","url_meta":{"origin":27186,"position":0},"title":"Un arbre tr\u00e8s ancien d\u00e9couvert contiendrait la preuve d&rsquo;une inversion du champ magn\u00e9tique terrestre","author":"Admin","date":"28 novembre 2019","format":false,"excerpt":"Les arbres peuvent \u00eatre fantastiques. Ils vivent, ont une \"\u00e2me\" et enregistrent parfois des \u00e9v\u00e9nements apocalyptiques qui se produisent sur Terre. R\u00e9cemment, \u00e0 Ngawha, au nord de la Nouvelle-Z\u00e9lande, des personnes ont d\u00e9couvert un vieil arbre sur une plage. Apr\u00e8s des recherches scientifiques, il semble que le tronc contienne une\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/arbre-inversion-magnetique-terre.jpg?fit=1024%2C527&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/arbre-inversion-magnetique-terre.jpg?fit=1024%2C527&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/arbre-inversion-magnetique-terre.jpg?fit=1024%2C527&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/arbre-inversion-magnetique-terre.jpg?fit=1024%2C527&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4612,"url":"https:\/\/www.laterredufutur.com\/accueil\/changement-de-polarite-de-la-terre\/","url_meta":{"origin":27186,"position":1},"title":"Changement de polarit\u00e9 de la Terre","author":"Admin","date":"24 septembre 2008","format":false,"excerpt":"D'apr\u00e8s ce que l'on sait aujourd'hui, il n'y a apparemment pas de cycle fixe d'inversion. On estime qu'une inversion se fait sans doute en quelque 5\u00a0000 ans, mais que la polarit\u00e9 obtenue peut soit subsister des dizaines de millions d'ann\u00e9es, soit osciller beaucoup plus rapidement, tous les 100\u00a0000 ans environ.\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/terre-magnetisme.jpg?fit=200%2C200&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":17338,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-mysterieuse-anomalie-sous-lafrique-affaiblit-le-champ-magnetique-terrestre\/","url_meta":{"origin":27186,"position":2},"title":"Une myst\u00e9rieuse anomalie sous l&rsquo;Afrique affaiblit le champ magn\u00e9tique terrestre","author":"Admin","date":"6 janvier 2019","format":false,"excerpt":"Le champ magn\u00e9tique terrestre est dans un \u00e9tat d'affaiblissement tout \u00e0 fait \u00e9tonnant - et selon des recherches ahurissantes men\u00e9es au d\u00e9but de cette ann\u00e9e, cette perturbation ph\u00e9nom\u00e9nale fait partie d'un sch\u00e9ma qui dure depuis plus de 1 000 ans. Le champ magn\u00e9tique terrestre ne nous donne pas seulement nos\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/12\/changement-magnetique-afrique-1.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/12\/changement-magnetique-afrique-1.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/12\/changement-magnetique-afrique-1.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/12\/changement-magnetique-afrique-1.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14451,"url":"https:\/\/www.laterredufutur.com\/accueil\/on-a-vu-dans-les-entrailles-de-la-terre\/","url_meta":{"origin":27186,"position":3},"title":"On a vu dans les entrailles de la Terre","author":"Admin","date":"11 janvier 2017","format":false,"excerpt":"\u00c0 3 000 km sous nos pieds se d\u00e9place une sorte de \u00ab courant-jet \u00bb de fer liquide, c\u2019est ce qu\u2019ont d\u00e9tect\u00e9 trois satellites europ\u00e9ens qui r\u00e9alisent une sorte de radiographie de la Terre. Cette d\u00e9couverte pourrait aider \u00e0 expliquer les variations dans le champ magn\u00e9tique de notre plan\u00e8te. Gr\u00e2ce\u2026","rel":"","context":"Dans &quot;Seismes\/Volcans&quot;","block_context":{"text":"Seismes\/Volcans","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/seismes-et-volcans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/centre-de-terre-courant-de-fer.jpg?fit=690%2C388&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/centre-de-terre-courant-de-fer.jpg?fit=690%2C388&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/12\/centre-de-terre-courant-de-fer.jpg?fit=690%2C388&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":27727,"url":"https:\/\/www.laterredufutur.com\/accueil\/quelque-chose-detrange-a-modifie-le-champ-magnetique-terrestre-il-y-a-40-millions-dannees\/","url_meta":{"origin":27186,"position":4},"title":"Quelque chose d&rsquo;\u00e9trange a modifi\u00e9 le champ magn\u00e9tique terrestre il y a 40 millions d&rsquo;ann\u00e9es","author":"Admin","date":"23 f\u00e9vrier 2026","format":false,"excerpt":"Des chercheurs ont identifi\u00e9 une p\u00e9riode de renversement lent du champ magn\u00e9tique terrestre, il y a environ 40 millions d'ann\u00e9es, ce qui soul\u00e8ve d'importantes questions sur la dur\u00e9e r\u00e9elle de ces inversions et sur la mani\u00e8re dont nous pourrions \u00eatre affect\u00e9s par la prochaine. On pense que les inversions du\u2026","rel":"","context":"Dans &quot;Divers&quot;","block_context":{"text":"Divers","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/divers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/champ-magnetique-de-la-Terre.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/champ-magnetique-de-la-Terre.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/champ-magnetique-de-la-Terre.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/champ-magnetique-de-la-Terre.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":24635,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-pole-nord-magnetique-se-deplace-toujours-plus-vite\/","url_meta":{"origin":27186,"position":5},"title":"Le p\u00f4le nord magn\u00e9tique se d\u00e9place toujours plus vite","author":"Admin","date":"4 janvier 2023","format":false,"excerpt":"Le p\u00f4le nord magn\u00e9tique est un point de l'h\u00e9misph\u00e8re Nord de la Terre o\u00f9 le champ magn\u00e9tique de la plan\u00e8te converge. Depuis les ann\u00e9es 1830, les scientifiques ont observ\u00e9 que le p\u00f4le nord magn\u00e9tique se d\u00e9place \u00e0 travers l'h\u00e9misph\u00e8re nord, du Canada vers la Sib\u00e9rie. La vitesse de d\u00e9placement du\u2026","rel":"","context":"Dans &quot;Divers&quot;","block_context":{"text":"Divers","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/divers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/champ-magnetique-terre.jpg?fit=1024%2C777&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/champ-magnetique-terre.jpg?fit=1024%2C777&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/champ-magnetique-terre.jpg?fit=1024%2C777&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/champ-magnetique-terre.jpg?fit=1024%2C777&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/27186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=27186"}],"version-history":[{"count":7,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/27186\/revisions"}],"predecessor-version":[{"id":27196,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/27186\/revisions\/27196"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/27190"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=27186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=27186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=27186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}