{"id":6515,"date":"2024-11-12T09:23:36","date_gmt":"2024-11-12T09:23:36","guid":{"rendered":"https:\/\/247stiri.ro\/index.php\/2024\/11\/12\/fenomen-gravitational-inedit-in-acest-loc-oamenii-pot-slabi-instantaneu-iar-cercetatorii-nu-au-o-explicatie\/"},"modified":"2024-11-12T09:23:36","modified_gmt":"2024-11-12T09:23:36","slug":"fenomen-gravitational-inedit-in-acest-loc-oamenii-pot-slabi-instantaneu-iar-cercetatorii-nu-au-o-explicatie","status":"publish","type":"post","link":"https:\/\/247stiri.ro\/index.php\/2024\/11\/12\/fenomen-gravitational-inedit-in-acest-loc-oamenii-pot-slabi-instantaneu-iar-cercetatorii-nu-au-o-explicatie\/","title":{"rendered":"Fenomen gravita\u021bional inedit: \u00cen acest loc oamenii pot sl\u0103bi instantaneu, iar cercet\u0103torii nu au o explica\u021bie"},"content":{"rendered":"

De ce este gravita\u021bia mai sc\u0103zut\u0103 \u00een Golful Hudson?<\/p>\n

Aceast\u0103 varia\u021bie apare din cauza modului \u00een care este distribuit\u0103 masa P\u0103m\u00e2ntului. \u00cen Golful Hudson, gravita\u021bia este cu aproximativ 0,004% mai slab\u0103 dec\u00e2t media global\u0103. O astfel de diferen\u021b\u0103, de\u0219i imperceptibil\u0103 pentru via\u021ba de zi cu zi, a generat mult interes \u00een r\u00e2ndul cercet\u0103torilor, care au dezvoltat dou\u0103 teorii principale pentru a explica aceast\u0103 anomalie.<\/p>\n

Teoria 1: urmele Epocii Glaciare<\/p>\n

Prima teorie este legat\u0103<\/a> de Epoca glaciar\u0103 \u0219i de calota masiv\u0103 de ghea\u021b\u0103 care acoperea regiunea acum aproximativ 20.000 de ani. Greutatea enorm\u0103 a calotei glaciare Laurentide a \u00eempins scoar\u021ba P\u0103m\u00e2ntului \u00een jos. Chiar dac\u0103 ghea\u021ba s-a topit de mult timp, p\u0103m\u00e2ntul de sub Golful Hudson \u00eenc\u0103 se reface treptat, ridic\u00e2ndu-se cu aproximativ 12 milimetri pe an. Aceast\u0103 ridicare lent\u0103 creeaz\u0103 o \u201ead\u00e2ncitur\u0103\u201d \u00een crust\u0103, ceea ce duce la o mas\u0103 mai mic\u0103 \u00een aceast\u0103 zon\u0103 \u0219i, implicit, o gravita\u021bie mai slab\u0103.<\/p>\n

Teoria 2: Mi\u0219c\u0103rile din ad\u00e2ncul Mantalei<\/p>\n

A doua explica\u021bie are leg\u0103tur\u0103 cu activitatea mantalei P\u0103m\u00e2ntului, stratul de roc\u0103 topit\u0103 aflat sub crust\u0103. Mi\u0219c\u0103rile lente \u0219i constante din mantal\u0103, generate de curen\u021bii de convec\u021bie, exercit\u0103 o for\u021b\u0103 asupra crustei terestre. \u00cen Golful Hudson, ace\u0219ti curen\u021bi trag scoar\u021ba \u00een jos, reduc\u00e2nd astfel masa total\u0103 \u0219i intensitatea gravita\u021biei \u00een regiune.<\/p>\n

\u00cen anul 2002, m\u0103sur\u0103tori realizate cu ajutorul sateli\u021bilor au validat ambele teorii. Astfel, gravita\u021bia sc\u0103zut\u0103 din Golful Hudson este cauzat\u0103 de un fenomen combinat: ridicarea scoar\u021bei dup\u0103 topirea ghe\u021bii din Epoca glaciar\u0103 \u0219i mi\u0219c\u0103rile mantalei. Chiar \u0219i atunci c\u00e2nd ridicarea scoar\u021bei va atinge complet nivelul de dinaintea perioadei glaciare, diferen\u021ba gravita\u021bional\u0103 ar putea persista.<\/p>\n

Acest fenomen inedit face din Golful Hudson un loc unic pe glob, dar nu o solu\u021bie viabil\u0103 pentru pierderea \u00een greutate<\/a>. \u00cens\u0103, r\u0103m\u00e2ne un subiect captivant de discu\u021bie \u0219i un fapt \u0219tiin\u021bific interesant, demn de men\u021bionat atunci c\u00e2nd vrei s\u0103 \u00ee\u021bi surprinzi prietenii cu detalii fascinante despre planeta noastr\u0103!<\/p>","protected":false},"excerpt":{"rendered":"

De ce este gravita\u021bia mai sc\u0103zut\u0103 \u00een Golful Hudson? Aceast\u0103 varia\u021bie apare din cauza modului…<\/p>\n","protected":false},"author":0,"featured_media":6516,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-6515","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lifestyle"],"_links":{"self":[{"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/posts\/6515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/comments?post=6515"}],"version-history":[{"count":0,"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/posts\/6515\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/media\/6516"}],"wp:attachment":[{"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/media?parent=6515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/categories?post=6515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/247stiri.ro\/index.php\/wp-json\/wp\/v2\/tags?post=6515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}