{"id":831,"date":"2023-01-08T23:40:35","date_gmt":"2023-01-08T21:40:35","guid":{"rendered":"http:\/\/www.cosmoespai.com\/cat\/?p=831"},"modified":"2023-01-08T23:40:35","modified_gmt":"2023-01-08T21:40:35","slug":"es-la-terra-el-centre-de-lunivers","status":"publish","type":"post","link":"https:\/\/www.cosmoespai.com\/cat\/es-la-terra-el-centre-de-lunivers\/","title":{"rendered":"\u00c9s la Terra el centre de l\u2019univers?"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">Fa algunes centenes d\u2019anys es creia que la Terra era el centre de l\u2019univers, que estava estacion\u00e0ria, i que tots els altres cossos que veiem al cel orbitaven al voltant de nosaltres en diferents capes. Avui en dia, aquesta visi\u00f3 de l\u2019univers es coneix com el model geoc\u00e8ntric.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Aquesta concepci\u00f3 de l\u2019univers va canviar quan Nicolau Cop\u00e8rnic va publicar un article on demostrava que la Terra i els altres planetes orbitaven al voltant del Sol, creant d\u2019aquesta manera, el model helioc\u00e8ntric. Malgrat que Cop\u00e8rnic va publicar aquest article a l\u2019any 1543, a causa de tota la revoluci\u00f3 i canvis que suposava aquesta declaraci\u00f3 en aquells temps, es va tardar m\u00e9s d\u2019un segle en que el model helioc\u00e8ntric fos acceptat per la comunitat cient\u00edfica i l\u2019Esgl\u00e9sia.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Avui en dia, la nostra visi\u00f3 de l\u2019univers ha canviat radicalment, despr\u00e9s d\u2019haver descobert innumerables gal\u00e0xies amb centenars de milers de milions d\u2019estrelles dins de cada una. Ens hem adonat que la Terra no ocupa cap posici\u00f3 privilegiada a l\u2019univers, i que nom\u00e9s \u00e9s un petit planeta que orbita el Sol en una de les branques de la <strong><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-nostra-galaxia-la-via-lactia\/\" target=\"_blank\" rel=\"noreferrer noopener\">Via L\u00e0ctia<\/a><\/strong>, la nostra gal\u00e0xia.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>El centre de l\u2019univers observable<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Com acabem de veure, la Terra no ocupa cap lloc privilegiat en l\u2019univers. \u00c9s m\u00e9s, com es porta estudiant des de fa anys, i com veurem en un proper article, \u00e9s molt probable que ni tan sols hi hagi un punt que sigui el centre de l\u2019univers.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Tot i aix\u00ed, tamb\u00e9 \u00e9s veritat que ens trobem al centre del <em>nostre<\/em> univers observable. Des de la Terra observem que, en totes les direccions, l\u2019univers s\u2019est\u00e9n fins uns 14 mil milions d\u2019anys llum de dist\u00e0ncia. Aix\u00f2 \u00e9s degut a que, des de que es va formar l\u2019univers, nom\u00e9s la llum dels objectes que es troben dins d\u2019aquesta esfera de 14 mil milions d\u2019anys llum de radi, ha pogut arribar-nos.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">En altres paraules, ens trobem al centre d\u2019una esfera amb un radi de 14 mil milions anys llum. Ara b\u00e9, aix\u00f2 no nom\u00e9s passa amb la Terra, sin\u00f3 amb qualsevol altre cos de l\u2019univers que es pregui com a refer\u00e8ncia. Per exemple, un planeta a l\u2019altra punta de la gal\u00e0xia tindr\u00e0 un univers observable diferent al nostre, ja que li haur\u00e0 arribat la llum de cossos que es troben m\u00e9s enll\u00e0 del nostre univers observable.<\/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\/en-quin-lloc-de-lunivers-es-troba-la-terra\/\">En quin lloc de l\u2019univers es troba la Terra?<\/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><a href=\"http:\/\/www.cosmoespai.com\/cat\/com-sabem-que-lunivers-sesta-expandint\/\">Com sabem que l\u2019univers s\u2019est\u00e0 expandint?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/per-que-lespai-es-negre-si-hi-ha-tantes-estrelles\/\">Per qu\u00e8 l\u2019espai \u00e9s negre, si hi ha tantes estrelles?<\/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>Fa algunes centenes d\u2019anys es creia que la Terra era el centre de l\u2019univers, que estava estacion\u00e0ria, i que tots els altres cossos que veiem<span class=\"read-more-link\"><a class=\"read-more\" href=\"https:\/\/www.cosmoespai.com\/cat\/es-la-terra-el-centre-de-lunivers\/\">Continuar llegint<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":832,"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":[134,6],"tags":[686,687,623,93,688],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/01\/Terra_CentreUnivers.jpg?fit=720%2C405","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":836,"url":"https:\/\/www.cosmoespai.com\/cat\/on-esta-el-centre-de-lunivers\/","url_meta":{"origin":831,"position":0},"title":"On est\u00e0 el centre de l\u2019univers?","author":"Ferran","date":"15 de gener de 2023","format":false,"excerpt":"Fins fa uns segles, tothom creia que la Terra era el centre de l\u2019univers, i que tot orbitava al voltant de nosaltres. Aquesta visi\u00f3 de l\u2019univers va canviar gr\u00e0cies a Cop\u00e8rnic, i no ha parat d\u2019evolucionar des de llavors. Avui en dia sabem que l\u2019univers no t\u00e9 cap centre. Segons\u2026","rel":"","context":"A &quot;Univers&quot;","block_context":{"text":"Univers","link":"https:\/\/www.cosmoespai.com\/cat\/category\/univers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/01\/Centre_Univers.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/01\/Centre_Univers.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/01\/Centre_Univers.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/01\/Centre_Univers.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":831,"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":895,"url":"https:\/\/www.cosmoespai.com\/cat\/existeixen-els-forats-negres-no-rotatoris\/","url_meta":{"origin":831,"position":2},"title":"Existeixen els forats negres no rotatoris?","author":"Ferran","date":"15 d'abril de 2023","format":false,"excerpt":"Els forats negres s\u00f3n un dels cossos m\u00e9s fascinants i misteriosos de l\u2019univers. S\u00f3n regions de l\u2019espai amb una densitat tan elevada que ni tan sols la llum en pot escapar. Per molt que els forats negres semblin cossos molt complexos i diferents entre ells, la veritat \u00e9s que no\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\/ForatsNegres_No_Rotatoris.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\/ForatsNegres_No_Rotatoris.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/ForatsNegres_No_Rotatoris.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2023\/04\/ForatsNegres_No_Rotatoris.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":40,"url":"https:\/\/www.cosmoespai.com\/cat\/una-propera-collisio-amb-andromeda\/","url_meta":{"origin":831,"position":3},"title":"Una propera col\u00b7lisi\u00f3 amb Andr\u00f2meda?","author":"Ferran","date":"3 de maig de 2020","format":false,"excerpt":"Fa molts anys, es va descobrir que la Via L\u00e0ctia i la nostra gal\u00e0xia ve\u00efna, Andr\u00f2meda, anaven en un rumb de col\u00b7lisi\u00f3. Molta gent pot pensar que xocaran i acabar\u00e0 en una explosi\u00f3 magistral entre les dues gal\u00e0xies, per\u00f2 qu\u00e8 passar\u00e0 en realitat? Al Grup Local (el conjunt de les\u2026","rel":"","context":"A &quot;Gal\u00e0xies&quot;","block_context":{"text":"Gal\u00e0xies","link":"https:\/\/www.cosmoespai.com\/cat\/category\/galaxies\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/05\/Col\u00b7lisi\u00f3_Amb_Andr\u00f2meda.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/05\/Col\u00b7lisi\u00f3_Amb_Andr\u00f2meda.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/05\/Col\u00b7lisi\u00f3_Amb_Andr\u00f2meda.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/05\/Col\u00b7lisi\u00f3_Amb_Andr\u00f2meda.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":286,"url":"https:\/\/www.cosmoespai.com\/cat\/la-ciencia-a-bord-de-lestacio-espacial-internacional-eei\/","url_meta":{"origin":831,"position":4},"title":"La ci\u00e8ncia a bord de l\u2019Estaci\u00f3 Espacial Internacional (EEI)","author":"Ferran","date":"19 de mar\u00e7 de 2021","format":false,"excerpt":"Des de l\u2019arribada de la primera tripulaci\u00f3 l\u2019any 2000, l\u2019EEI s\u2019ha convertit en un centre orbital d\u2019investigacions cient\u00edfiques a nivell mundial en diverses disciplines. Les investigacions portades a terme a l\u2019EEI han perm\u00e8s entendre i avan\u00e7ar en molts aspectes cient\u00edfics. Les troballes en el camp de la biomedicina han tingut\u2026","rel":"","context":"A &quot;Astronautes&quot;","block_context":{"text":"Astronautes","link":"https:\/\/www.cosmoespai.com\/cat\/category\/astronautes\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/03\/Ci\u00e8ncia_EEI-1.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/03\/Ci\u00e8ncia_EEI-1.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/03\/Ci\u00e8ncia_EEI-1.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/03\/Ci\u00e8ncia_EEI-1.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":847,"url":"https:\/\/www.cosmoespai.com\/cat\/el-centre-de-la-terra-sha-frenat-i-gira-en-sentit-contrari\/","url_meta":{"origin":831,"position":5},"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":[]}],"_links":{"self":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/831"}],"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=831"}],"version-history":[{"count":1,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/831\/revisions"}],"predecessor-version":[{"id":833,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/831\/revisions\/833"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media\/832"}],"wp:attachment":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media?parent=831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/categories?post=831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/tags?post=831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}