{"id":107,"date":"2022-01-05T14:44:49","date_gmt":"2022-01-05T13:44:49","guid":{"rendered":"http:\/\/www.planete-a-roulettes.net\/Site\/?page_id=107"},"modified":"2022-02-16T17:36:31","modified_gmt":"2022-02-16T16:36:31","slug":"ascenseur-spatial","status":"publish","type":"page","link":"https:\/\/www.planete-a-roulettes.net\/Site\/ascenseur-spatial\/","title":{"rendered":"Ascenseur spatial"},"content":{"rendered":"\n<div class=\"wp-block-group has-palette-color-8-background-color has-background is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-stackable-subtitle stk-block-subtitle stk-block stk-be21755\" data-block-id=\"be21755\"><style>.stk-be21755{min-height:0px !important;max-width:1500px !important;min-width:auto !important;padding-top:6px !important;padding-right:6px !important;padding-bottom:6px !important;padding-left:6px !important;margin-bottom:2px !important;display:flex !important}.stk-be21755{align-items:flex-start !important}.stk-be21755{z-index:3 !important}.stk-be21755 .stk-block-subtitle__text{text-shadow:2px 2px 4px rgba(0,0,0,0.2) !important;font-size:40px !important;color:var(--theme-palette-color-3,#3A4F66) !important;font-family:\"Bai Jamjuree\",Sans-serif !important}@media screen and (max-width:1023px){.stk-be21755 .stk-block-subtitle__text{font-size:40px !important}}<\/style><p class=\"stk-block-subtitle__text stk-subtitle has-text-color has-palette-color-3-color has-text-align-left\"><strong><strong>Ascenseur Spatial<\/strong><\/strong><\/p><\/div>\n\n\n\n<div class=\"wp-block-stackable-divider alignfull stk-block-divider has-text-align-center stk-block stk-d736d2d\" data-block-id=\"d736d2d\"><style>.stk-d736d2d{min-height:0px !important;max-width:5000px !important;min-width:auto !important;margin-right:auto !important;margin-bottom:-15px !important;margin-left:auto !important;display:flex !important}.stk-d736d2d{align-items:center !important}.stk-d736d2d hr.stk-block-divider__hr{background:#ff9c00 !important;height:5px !important;width:100% !important}<\/style><hr class=\"stk-block-divider__hr\"\/><\/div>\n\n\n\n<div class=\"wp-block-group has-palette-color-3-color has-palette-color-8-background-color has-text-color has-background is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-ce9d9f8\" data-block-id=\"ce9d9f8\"><style>.stk-ce9d9f8{margin-bottom:0px !important}.stk-ce9d9f8{top:-10px !important;bottom:0px !important}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-ce9d9f8-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-44ac7fe\" data-block-id=\"44ac7fe\"><style>@media screen and (min-width:768px){.stk-44ac7fe{flex:1 1 calc(55.9% - var(--stk-column-gap,0px) * 1 \/ 2 ) !important}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-44ac7fe-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block stk-cd43ce3\" data-block-id=\"cd43ce3\"><style>.stk-cd43ce3{margin-bottom:0px !important}<\/style><h3 class=\"stk-block-heading__text has-text-align-center\">Space Elevator AR<\/h3><\/div>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block stk-3b534d4\" data-block-id=\"3b534d4\"><h4 class=\"stk-block-heading__text has-text-align-center\">Application de R\u00e9alit\u00e9 Augment\u00e9e<br>pour iPhone et iPad<\/h4><\/div>\n\n\n\n<p class=\"has-text-align-center\"><strong>Pr\u00eat(e) \u00e0 embarquer dans l&#8217;Ascenseur Spatial ?<\/strong><br><br>D\u00e9couvrez l\u2019ascenseur spatial, mod\u00e8le r\u00e9duit ou grandeur nature. Explorez ses principales composantes, sur Terre ou dans l\u2019espace. Et filmez la sc\u00e8ne dans le monde r\u00e9el !<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/apps.apple.com\/us\/app\/id1527439195\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/logoAppStoreFr-2.png\" alt=\"\" class=\"wp-image-1848\" width=\"202\" height=\"67\" srcset=\"https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/logoAppStoreFr-2.png 400w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/logoAppStoreFr-2-300x100.png 300w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-d2ee57b\" data-block-id=\"d2ee57b\"><p class=\"stk-block-text__text\"><\/p><\/div>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-57045cc\" data-block-id=\"57045cc\"><style>.stk-57045cc .stk-block-text__text{text-shadow:0px 0px 100px rgba(71,73,79,1) !important;font-size:18px !important}@media screen and (max-width:1023px){.stk-57045cc .stk-block-text__text{font-size:18px !important}}<\/style><p class=\"stk-block-text__text has-text-align-center\"><em>Cette application n\u00e9cessite un iPhone ou iPad<br>\u00e9quip\u00e9 d&#8217;un processeur A12 bionic, A13 bionic, ou +<br>(ex. : iPhone 11, iPhone XS, iPhone XR,<br>iPad Air 3, iPad Pro 2nd gen and later)<\/em><br><br><strong>\u00a9 Conception et d\u00e9veloppement : Olivier Boisard &#8211; 2021<\/strong><\/p><\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9036b05\" data-block-id=\"9036b05\"><style>@media screen and (min-width:768px){.stk-9036b05{flex:1 1 calc(44.1% - var(--stk-column-gap,0px) * 1 \/ 2 ) !important}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9036b05-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/splash.jpg\" alt=\"\" class=\"wp-image-1845\" width=\"486\" height=\"694\" srcset=\"https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/splash.jpg 379w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/splash-210x300.jpg 210w\" sizes=\"(max-width: 486px) 100vw, 486px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-stackable-subtitle stk-block-subtitle stk-block stk-41581c9\" data-block-id=\"41581c9\"><style>.stk-41581c9 .stk-block-subtitle__text{font-size:35px !important;font-family:\"Bai Jamjuree\",Sans-serif !important}@media screen and (max-width:1023px){.stk-41581c9 .stk-block-subtitle__text{font-size:35px !important}}<\/style><p class=\"stk-block-subtitle__text stk-subtitle has-text-align-center\"><strong>Clip de pr\u00e9sentation<\/strong><\/p><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Space Elevator AR\" width=\"1290\" height=\"968\" src=\"https:\/\/www.youtube.com\/embed\/g6j2TgNuHUg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\" id=\"quelques-mots-sur-l-ascenseur-spatial\"><strong>Quelques mots sur l&#8217;Ascenseur Spatial<\/strong><\/h2>\n\n\n\n<p><em>L\u2019id\u00e9e de l\u2019ascenseur spatial est ancienne puisqu\u2019on l\u2019attribue g\u00e9n\u00e9ralement au pionnier de l\u2019astronautique Konstantin Tsiolkovski, inspir\u00e9 en1895 par la Tour Eiffel. Quoi de plus naturel en effet, pour s\u2019\u00e9lever au dessus du sol, que d\u2019utiliser un ascenseur ? <\/em><\/p>\n\n\n\n<p><em>Mais existe-t-il un mat\u00e9riau suffisamment r\u00e9sistant pour fabriquer l\u2019immense cable de plusieurs milliers de kilom\u00e8tres de long reliant la surface de la Terre \u00e0 l\u2019espace ? M\u00eame les fibres m\u00e9talliques les plus r\u00e9sistantes utilis\u00e9es pour la construction de ponts suspendus ne supporteraient pas les tensions internes du cable, provoqu\u00e9es notamment par le propre poids, bien trop \u00e9lev\u00e9, du m\u00e9tal \u2026 <\/em><\/p>\n\n\n\n<p><em>Durant les ann\u00e9es 1990, de nouveaux travaux sur les nanotubes de carbone ont permis d\u2019entrevoir une solution \u00e0 cette question apparemment insoluble : des structures compos\u00e9es d\u2019atomes de carbone formant un tube de section hexagonale, permettent de concevoir des mat\u00e9riaux \u00e0 la fois tr\u00e8s l\u00e9gers et poss\u00e9dant des propri\u00e9t\u00e9s m\u00e9caniques extraordinaires &#8211; pr\u00e8s de dix fois plus l\u00e9gers que l\u2019acier mais 100 fois plus r\u00e9sistants. <\/em><\/p>\n\n\n\n<p><em>Alors, l\u2019ascenseur spatial est-il pour demain ? On s\u2019en doute, de nombreux obstacles technologiques restent \u00e0 franchir : les recherches sur les nanotubes de carbone progressent chaque ann\u00e9e, mais on ne maitrise pas encore la production de fibres suffisamment longues pour fabriquer un cable de dizaines de milliers de kilom\u00e8tres de long; lorsque cette question sera r\u00e9solue, il s\u2019agira alors de concevoir le processus de construction de l\u2019ascenseur &#8211; probablement depuis une usine en orbite &#8211; ainsi que la tr\u00e8s d\u00e9licate \u00e9tape de l\u2019ancrage au sol du cable; enfin, des progr\u00e8s seront n\u00e9cessaires pour stocker dans des batteries l\u2019\u00e9nergie \u00e9lectrique utilis\u00e9e pour la propulsion de l\u2019ascenseur. <\/em><\/p>\n\n\n\n<p><em><strong>Aucun de ces d\u00e9fis technologiques n\u2019apparait cependant insurmontable. L\u2019ascenseur spatial n\u2019est plus aujourd\u2019hui une pure sp\u00e9culation de science-fiction, mais un concept scientifiquement plausible qui, lorsqu\u2019il verra le jour, r\u00e9volutionnera totalement notre rapport \u00e0 l\u2019espace.<\/strong><\/em><\/p>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-d15df8e\" data-block-id=\"d15df8e\"><style>.stk-d15df8e{margin-bottom:50px !important}<\/style><p class=\"stk-block-text__text\"><em>Pour en savoir plus sur l\u2019ascenseur spatial, nous vous recommandons notamment l\u2019excellent roman publi\u00e9 en 1979 par Arthur C.Clarke, <strong>Les Fontaines du Paradis<\/strong>.<\/em><\/p><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1.jpg\" alt=\"\" class=\"wp-image-1860\" width=\"999\" height=\"317\" srcset=\"https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1.jpg 999w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1-300x95.jpg 300w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1-768x244.jpg 768w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1-500x159.jpg 500w, https:\/\/www.planete-a-roulettes.net\/Site\/wp-content\/uploads\/2022\/02\/ima4-1-800x254.jpg 800w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/figure><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-stackable-text stk-block-text stk-block stk-c792954\" data-block-id=\"c792954\"><style>.stk-c792954 .stk-block-text__text{color:var(--theme-palette-color-8,#ffffff) !important}<\/style><p class=\"stk-block-text__text has-text-color has-palette-color-8-color\">&#8211;<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ascenseur Spatial Space Elevator AR Application de R\u00e9alit\u00e9 Augment\u00e9epour iPhone et iPad Pr\u00eat(e) \u00e0 embarquer dans l&#8217;Ascenseur Spatial ? D\u00e9couvrez l\u2019ascenseur spatial, mod\u00e8le r\u00e9duit ou grandeur nature. Explorez ses principales composantes, sur Terre ou dans l\u2019espace. Et filmez la sc\u00e8ne dans le monde r\u00e9el ! Cette application n\u00e9cessite un iPhone ou iPad\u00e9quip\u00e9 d&#8217;un processeur A12 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","footnotes":""},"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"awb_sm":false,"awb_md":false,"awb_lg":false,"awb_xl":false},"uagb_author_info":{"display_name":"oboisard","author_link":"https:\/\/www.planete-a-roulettes.net\/Site\/blog\/author\/oboisard\/"},"uagb_comment_info":0,"uagb_excerpt":"Ascenseur Spatial Space Elevator AR Application de R\u00e9alit\u00e9 Augment\u00e9epour iPhone et iPad Pr\u00eat(e) \u00e0 embarquer dans l&#8217;Ascenseur Spatial ? D\u00e9couvrez l\u2019ascenseur spatial, mod\u00e8le r\u00e9duit ou grandeur nature. Explorez ses principales composantes, sur Terre ou dans l\u2019espace. Et filmez la sc\u00e8ne dans le monde r\u00e9el ! Cette application n\u00e9cessite un iPhone ou iPad\u00e9quip\u00e9 d&#8217;un processeur A12\u2026","_links":{"self":[{"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/pages\/107"}],"collection":[{"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/comments?post=107"}],"version-history":[{"count":26,"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/pages\/107\/revisions"}],"predecessor-version":[{"id":1864,"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/pages\/107\/revisions\/1864"}],"wp:attachment":[{"href":"https:\/\/www.planete-a-roulettes.net\/Site\/wp-json\/wp\/v2\/media?parent=107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}