{"id":61,"date":"2022-05-24T23:04:39","date_gmt":"2022-05-24T21:04:39","guid":{"rendered":"http:\/\/actionsciencejargeau.fr\/?page_id=61"},"modified":"2022-07-12T21:45:36","modified_gmt":"2022-07-12T19:45:36","slug":"panneau3","status":"publish","type":"page","link":"https:\/\/actionsciencejargeau.fr\/index.php\/accueil\/cdu\/etape4\/panneau3\/","title":{"rendered":"A 150 millions de km du Soleil"},"content":{"rendered":"\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group has-luminous-dusk-gradient-background has-background is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-8cf370e7 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-audio\"><audio controls src=\"http:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/Et4-4.mp3\"><\/audio><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"http:\/\/actionsciencejargeau.fr\/index.php\/accueil\/cdu\/etape4\/panneau2\/\">pr\u00e9c\u00e9dent<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"http:\/\/actionsciencejargeau.fr\/index.php\/accueil\/cdu\/etape5\/panneau1\/\">suivant<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-small-font-size\">la proto-Terre se forme; formation des plan\u00e8tes, ast\u00e9ro\u00efdes et com\u00e8tes depuis le disque protoplan\u00e9taire du Soleil<br>A pr\u00e8s de 150 millions de km du Soleil, une plan\u00e8te en fusion re\u00e7oit les impacts d&rsquo;ast\u00e9ro\u00efdes. Notre terre est principalement constitu\u00e9e de silicium, d&rsquo;oxyg\u00e8ne,&nbsp;d&rsquo;aluminium de fer et de nickel. Ces deux derniers \u00e9l\u00e9ments, trop denses, se retrouvent essentiellement au c\u0153ur de la plan\u00e8te; encore une cons\u00e9quence de la gravit\u00e9.<br>C&rsquo;est aussi au tout d\u00e9but de sa formation, que notre terre a subit un ph\u00e9nom\u00e9nal&nbsp;impact avec la proto-plan\u00e8te Th\u00e9ia. C&rsquo;est \u00e0 la suite de cet impact qu&rsquo;est n\u00e9e notre satellite, la Lune.<br>En refroidissant, les premi\u00e8res roches vont appara\u00eetre.<br>Une atmosph\u00e8re l\u00e9g\u00e8re l&rsquo;entoure. Elle va s&rsquo;enrichir de la vapeur d&rsquo;eau qui proviendra des impacts de m\u00e9t\u00e9orites de glace.<br>Sa surface se refroidie; elle va \u00e9voluer et se transformer sous l&rsquo;effet de la tectonique et de l&rsquo;interaction de l&rsquo;eau et de l&rsquo;atmosph\u00e8re. plus tard, la vie et toute sa chimie associ\u00e9e s&rsquo;ajoutera \u00e0 fa\u00e7onner cette surface.<\/p>\n<\/div>\n\n\n\n<p class=\"has-small-font-size\">Gr\u00e2ce \u00e0 l\u2019eau, \u00e0 la bonne distance du Soleil, \u00e0 sa taille acceptable, sa composition appropri\u00e9e la terre va \u00eatre le berceau de la vie \u2026 Dans cette eau sont apparues des mol\u00e9cules carbon\u00e9es capables de s&rsquo;assembler, de se transformer et d&rsquo;\u00e9voluer\u00a0: la vie\u00a0!<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"453\" height=\"856\" src=\"http:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-28.png\" alt=\"\" class=\"wp-image-294\" srcset=\"https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-28.png 453w, https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-28-159x300.png 159w\" sizes=\"(max-width: 453px) 100vw, 453px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-luminous-dusk-gradient-background has-background is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"http:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-8.png\" alt=\"\" class=\"wp-image-178\" width=\"570\" height=\"319\" srcset=\"https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-8.png 865w, https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-8-300x169.png 300w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/><figcaption>La Terre, dans ses premiers millions d&rsquo;ann\u00e9es, une boule en fusion<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"http:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-9.png\" alt=\"\" class=\"wp-image-179\" width=\"212\" height=\"119\" srcset=\"https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-9.png 760w, https:\/\/actionsciencejargeau.fr\/wp-content\/uploads\/2022\/07\/image-9-300x169.png 300w\" sizes=\"(max-width: 212px) 100vw, 212px\" \/><\/figure>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>la proto-Terre se forme; formation des plan\u00e8tes, ast\u00e9ro\u00efdes et com\u00e8tes depuis le disque protoplan\u00e9taire du SoleilA pr\u00e8s de 150 millions de km du Soleil, une plan\u00e8te en fusion re\u00e7oit les [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":55,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-61","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/pages\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":5,"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/pages\/61\/revisions"}],"predecessor-version":[{"id":295,"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/pages\/61\/revisions\/295"}],"up":[{"embeddable":true,"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/pages\/55"}],"wp:attachment":[{"href":"https:\/\/actionsciencejargeau.fr\/index.php\/wp-json\/wp\/v2\/media?parent=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}