{"id":852,"date":"2023-02-12T22:20:41","date_gmt":"2023-02-12T20:20:41","guid":{"rendered":"http:\/\/www.cosmoespai.com\/cat\/?p=852"},"modified":"2023-02-12T22:20:41","modified_gmt":"2023-02-12T20:20:41","slug":"com-ens-afecta-la-frenada-del-nucli-de-la-terra","status":"publish","type":"post","link":"https:\/\/www.cosmoespai.com\/cat\/com-ens-afecta-la-frenada-del-nucli-de-la-terra\/","title":{"rendered":"Com ens afecta la frenada del nucli de la Terra?"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">Com vam explicar a l\u2019<strong><a href=\"http:\/\/www.cosmoespai.com\/cat\/el-centre-de-la-terra-sha-frenat-i-gira-en-sentit-contrari\/\">article anterior<\/a><\/strong>, dos ge\u00f2legs xinesos han arribat recentment a la conclusi\u00f3 de que el nucli intern de la Terra s\u2019ha frenat, i que ara gira m\u00e9s poc a poc que la resta de la Terra.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Per sort, aquest canvi en la velocitat del nucli terrestre no t\u00e9 efectes apreciables en la nostra vida di\u00e0ria. De fet, es creu que el nucli de la Terra segueix un cicle d\u2019unes set d\u00e8cades, augmentant i disminuint la seva velocitat cada 35 anys. Ja es va observar una frenada en el nucli de la Terra als anys 1970, i no hi va haver cap conseq\u00fc\u00e8ncia important.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>Dies m\u00e9s llargs<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Un dels efectes que t\u00e9 aquesta disminuci\u00f3 de la velocitat del nucli de la Terra \u00e9s que els dies es tornen una mica m\u00e9s llargs. No obstant, aquest canvi \u00e9s imperceptible per als humans. Els autors de l\u2019estudi (Yi Yang i Xiaodong Song) han calculat que el dia ser\u00e0 una mil\u00b7l\u00e8sima de segon m\u00e9s llarg del que ho era abans. Tot i no tenir cap impacte directe en la vida al planeta, segurament requerir\u00e0 alguns ajustaments als rellotges at\u00f2mics m\u00e9s precisos, com per exemple introduint segons bixestos.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>Deformacions terrestres, i efectes en el camp magn\u00e8tic<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Un altre efecte que podria comportar aquesta disminuci\u00f3 de la velocitat del nucli de la Terra, seria l\u2019aparici\u00f3 de deformacions m\u00ednimes en la superf\u00edcie de la Terra. Aix\u00f2 podria conduir a petits canvis en el nivell del mar.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Finalment, la frenada del nucli de la Terra tamb\u00e9 t\u00e9 alguns efectes en el camp magn\u00e8tic de la Terra. No obstant, aquests efectes no s\u00f3n cr\u00edtics, ja que \u00e9s el nucli extern (el qual envolta el nucli intern) el responsable del camp magn\u00e8tic del planeta. Segons els investigadors, aquestes variacions en el camp magn\u00e8tic podrien afectar el clima de la Terra. De totes maneres, aix\u00f2 nom\u00e9s \u00e9s una hip\u00f2tesi, que futurs estudis haurien de confirmar.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Com veieu, els canvis en la velocitat del nucli intern de la Terra no tenen cap efecte perceptible en la vida a la superf\u00edcie, ni en el nostre dia a dia.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>Entrades Similars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/el-centre-de-la-terra-sha-frenat-i-gira-en-sentit-contrari\/\">El centre de la Terra s\u2019ha frenat i gira en sentit contrari<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/quina-edat-te-la-terra\/\">Quina edat t\u00e9 la Terra?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/qui-va-mesurar-la-circumferencia-de-la-terra-per-primer-cop\/\">Qui va mesurar la circumfer\u00e8ncia de la Terra per primer cop?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/per-que-fa-mes-calor-a-lequador-que-als-pols\/\">Per qu\u00e8 fa m\u00e9s calor a l\u2019equador que als pols?<\/a><\/p>\n\n\n\n<p><strong>Entrades Populars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/perque-la-lluna-nomes-ens-ensenya-una-cara\/\">Perqu\u00e8 la Lluna nom\u00e9s ens ensenya una cara?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/stephenson-2-18-lestrella-mes-gran-coneguda-a-lunivers\/\">Stephenson 2-18, l\u2019estrella m\u00e9s gran coneguda a l\u2019univers<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/lexplotacio-minera-al-cinturo-dasteroides-una-font-de-recursos\/\">L\u2019explotaci\u00f3 minera al cintur\u00f3 d\u2019asteroides, una font de recursos<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-brossa-espacial-un-gran-problema\/\">La brossa espacial, un gran problema<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/com-es-van-extingir-els-dinosaures\/\">Com es van extingir els dinosaures?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/que-passaria-si-la-terra-deixes-de-rotar\/\">Qu\u00e8 passaria si la Terra deix\u00e9s de rotar?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-missio-a-venus-de-la-sonda-venus-express-per-la-esa\/\">La missi\u00f3 a Venus de la sonda Venus Express per la ESA<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/quins-son-els-requisits-per-a-ser-un-planeta\/\">Quins s\u00f3n els requisits per a ser un planeta?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/perque-no-es-poden-sentir-sons-a-lespai\/\">Perqu\u00e8 no es poden sentir sons a l\u2019espai?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/quina-mida-i-forma-tindrien-els-extraterrestres\/\">Quina mida i forma tindrien els extraterrestres?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/les-unitats-de-mesura-que-fem-servir-en-astronomia\/\">Les unitats de mesura que fem servir en astronomia<\/a><\/p>\n\n\n\n<p><strong>Entrades Recents:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/com-viatjar-al-futur-sense-violar-les-lleis-de-la-fisica\/\">Com Viatjar al Futur Sense Violar les Lleis de la F\u00edsica<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-la-gravetat\/\">Qu\u00e8 \u00e9s la gravetat?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-hi-ha-mes-materia-que-antimateria-a-lunivers\/\">Per qu\u00e8 hi ha m\u00e9s mat\u00e8ria que antimat\u00e8ria a l\u2019univers?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-lantimateria\/\">Qu\u00e8 \u00e9s l\u2019antimat\u00e8ria?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-els-centres-de-les-galaxies-contenen-forats-negres\/\">Per qu\u00e8 els centres de les gal\u00e0xies contenen forats negres?<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Com vam explicar a l\u2019article anterior, dos ge\u00f2legs xinesos han arribat recentment a la conclusi\u00f3 de que el nucli intern de la Terra s\u2019ha frenat,<span class=\"read-more-link\"><a class=\"read-more\" href=\"https:\/\/www.cosmoespai.com\/cat\/com-ens-afecta-la-frenada-del-nucli-de-la-terra\/\">Continuar llegint<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":854,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":""},"categories":[134],"tags":[447,700,699,277,698,557,693,694],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/02\/Efectes_FrenadaNulciTerra.jpg?fit=720%2C405","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":847,"url":"https:\/\/www.cosmoespai.com\/cat\/el-centre-de-la-terra-sha-frenat-i-gira-en-sentit-contrari\/","url_meta":{"origin":852,"position":0},"title":"El centre de la Terra s\u2019ha frenat i gira en sentit contrari","author":"Ferran","date":"6 de febrer de 2023","format":false,"excerpt":"Com ja \u00e9s not\u00edcia des de fa uns dies, un equip de sism\u00f2legs xinesos, format per Yi Yang i Xiaodong Song, va publicar un article a la revista cient\u00edfica de Nature Geoscience el 23 de gener de 2023, on anunciaven que el nucli de la Terra s\u2019ha frenat, i que\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/02\/Frenada_Nucli_Terra.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/02\/Frenada_Nucli_Terra.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/02\/Frenada_Nucli_Terra.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/02\/Frenada_Nucli_Terra.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":367,"url":"https:\/\/www.cosmoespai.com\/cat\/la-llum-tarda-uns-170-000-anys-en-escapar-del-sol\/","url_meta":{"origin":852,"position":1},"title":"La llum tarda uns 170 000 anys en escapar del Sol","author":"Ferran","date":"4 de juny de 2021","format":false,"excerpt":"A causa de l\u2019enorme gravetat que hi ha al nucli del Sol, aquest aconsegueix fusionar \u00e0toms d\u2019hidrogen, creant, com a resultat, heli. Aix\u00f2 es denomina fusi\u00f3 nuclear. En el proc\u00e9s, les fusions d\u2019\u00e0toms produeixen una gran quantitat d\u2019energia, \u00e9s a dir, de llum, inicialment en l\u2019estat m\u00e9s energ\u00e8tic de tots:\u2026","rel":"","context":"A &quot;Estrelles&quot;","block_context":{"text":"Estrelles","link":"https:\/\/www.cosmoespai.com\/cat\/category\/estrelles\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/06\/Llum_Sortir_Sol.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/06\/Llum_Sortir_Sol.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/06\/Llum_Sortir_Sol.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/06\/Llum_Sortir_Sol.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":350,"url":"https:\/\/www.cosmoespai.com\/cat\/la-terra-saprima-57-000-tones-cada-any\/","url_meta":{"origin":852,"position":2},"title":"La Terra s\u2019aprima 57 000 tones cada any","author":"Ferran","date":"7 de maig de 2021","format":false,"excerpt":"Per incre\u00efble que pugui semblar, cada any la Terra perd molta massa. Aquesta p\u00e8rdua de massa est\u00e0 causada per diversos factors, cada un d\u2019ells amb diferent grau d\u2019intensitat. Tot i aix\u00ed, el planeta tamb\u00e9 guanya pes cada any, per\u00f2 en una quantitat menor a la que perd. La Terra guanya\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Terra_Aprima.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Terra_Aprima.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Terra_Aprima.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Terra_Aprima.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":886,"url":"https:\/\/www.cosmoespai.com\/cat\/que-sabem-sobre-la-velocitat-de-la-llum\/","url_meta":{"origin":852,"position":3},"title":"Qu\u00e8 sabem sobre la velocitat de la llum?","author":"Ferran","date":"2 d'abril de 2023","format":false,"excerpt":"La velocitat de la llum al buit \u00e9s d\u2019exactament de 299.792.458 metres per segon, arrodonida normalment a 300.000.000 metres per segon. Aquesta \u00e9s una constant universal, simbolitzada per la lletra \u00abc\u00bb a les equacions. Segons la relativitat especial d\u2019Albert Einstein, la velocitat de la llum funciona com un l\u00edmit de\u2026","rel":"","context":"A &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/www.cosmoespai.com\/cat\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/Velocitat_Llum.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/Velocitat_Llum.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/Velocitat_Llum.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/Velocitat_Llum.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":468,"url":"https:\/\/www.cosmoespai.com\/cat\/tot-sobre-el-coet-i-la-capsula-soyuz\/","url_meta":{"origin":852,"position":4},"title":"Tot sobre el coet i la c\u00e0psula Soyuz","author":"Ferran","date":"9 d'octubre de 2021","format":false,"excerpt":"Els coets Soyuz han estat llan\u00e7ant sat\u00e8l\u00b7lits, provisions i humans a l\u2019espai durant quasi cinc d\u00e8cades. Aquest coet est\u00e0 en funcionament des dels anys 60, quan Serguei Koroliov, el geni que va fer progressar enormement l\u2019URSS en la cursa espacial, el va dissenyar. Des de llavors, ha anat sofrint petites\u2026","rel":"","context":"A &quot;Coets&quot;","block_context":{"text":"Coets","link":"https:\/\/www.cosmoespai.com\/cat\/category\/coets\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/10\/Soyuz.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/10\/Soyuz.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/10\/Soyuz.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/10\/Soyuz.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":676,"url":"https:\/\/www.cosmoespai.com\/cat\/de-que-esta-compost-el-vent-solar\/","url_meta":{"origin":852,"position":5},"title":"De qu\u00e8 est\u00e0 compost el vent solar?","author":"Ferran","date":"10 de juliol de 2022","format":false,"excerpt":"El vent solar \u00e9s un continu corrent de part\u00edcules molt energ\u00e8tiques provinent, com el seu nom indica, de la nostra estrella. A la Terra, el vent solar \u00e9s el responsable de la formaci\u00f3 de les aurores boreals, per\u00f2 pot tenir efectes perjudicials en els sat\u00e8l\u00b7lits que orbiten la Terra. La\u2026","rel":"","context":"A &quot;Sol&quot;","block_context":{"text":"Sol","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/sol\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/07\/Composici\u00f3_VentSolar.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/07\/Composici\u00f3_VentSolar.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/07\/Composici\u00f3_VentSolar.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/07\/Composici\u00f3_VentSolar.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/852"}],"collection":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/comments?post=852"}],"version-history":[{"count":2,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/852\/revisions"}],"predecessor-version":[{"id":855,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/852\/revisions\/855"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media\/854"}],"wp:attachment":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media?parent=852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/categories?post=852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/tags?post=852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}