{"id":35355,"date":"2019-10-31T22:03:48","date_gmt":"2019-10-31T19:03:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/element-nulevogo-razmera\/"},"modified":"2019-10-31T22:03:48","modified_gmt":"2019-10-31T19:03:48","slug":"element-nulevogo-razmera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/element-nulevogo-razmera","title":{"rendered":"\u00c9l\u00e9ment de taille nulle","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"\u00c9l\u00e9ment de taille nulle\" src=\"\/wp-content\/uploads\/2019\/06\/f5864c485d1e168253cff083a89252a8.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Graphes \u2014 repr\u00e9sentation sch\u00e9matique dans de nombreux domaines. <br \/>\nMod\u00e8le de r\u00e9alit\u00e9s.<br \/>\nCercle \u2014 sommets, lignes \u2014 arcs du graphe (connexions).<br \/>\nSi un chiffre est \u00e0 c\u00f4t\u00e9 d'un arc, c'est la distance entre les points sur la carte ou le co\u00fbt sur le diagramme de Gantt.<\/p>\n<p>En \u00e9lectricit\u00e9 et en \u00e9lectronique, les sommets sont des composants et des modules, les lignes sont des conducteurs.<br \/>\nEn hydraulique : chaudi\u00e8res, chauffe-eau, robinetterie, radiateurs et tuyaux.<br \/>\nSur la carte : villes et routes.<\/p>\n<p>D'une t\u00e2che scolaire en math\u00e9matiques :<\/p>\n<blockquote><p>Un bus est parti du point A au point B. La distance entre les points est de 30 km.<\/p><\/blockquote>\n<p>\nEt si la distance est 0 ?<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"\u00c9l\u00e9ment de taille nulle\" src=\"\/wp-content\/uploads\/2019\/06\/e7e4a022f809d65a35bfcb4271d80062.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nNous r\u00e9duisons la distance du fa\u00eete du toit au sol \u00e0 z\u00e9ro. Une maison \u00e0 deux \u00e9tages se transforme en une habitation souterraine.<\/p>\n<p><img decoding=\"async\" alt=\"\u00c9l\u00e9ment de taille nulle\" src=\"\/wp-content\/uploads\/2019\/06\/e8df5c82189fcd704475c80b84835a0c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nNous r\u00e9duisons la distance entre la chaudi\u00e8re et le radiateur (en raccourcissant les tuyaux) \u2014 obtenons un po\u00eale russe.<br \/>\nComme vous l'avez d\u00e9j\u00e0 devin\u00e9, la technologie fonctionne dans les deux sens.<\/p>\n<p>On peut soit r\u00e9duire \u00e0 z\u00e9ro, soit augmenter \u00e0 l'infini.<\/p>\n<p><img decoding=\"async\" alt=\"\u00c9l\u00e9ment de taille nulle\" src=\"\/wp-content\/uploads\/2019\/06\/ccc119dcbeb5de3cc787b2419bfb6e4b.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nLa r\u00e9duction de la longueur des conducteurs \u00e9lectriques a conduit \u00e0 la cr\u00e9ation de puces.<\/p>\n<p>Longueur, hauteur et largeur \u2014 ce sont des mesures g\u00e9om\u00e9triques. Mesures du monde r\u00e9el (visible).<br \/>\nLes mesures peuvent \u00e9galement \u00eatre plus abstraites :<\/p>\n<ul>\n<li>Temp\u00e9rature<\/li>\n<li>Temps<\/li>\n<li>Poids<\/li>\n<li>Densit\u00e9<\/li>\n<li>Conductivit\u00e9 thermique<\/li>\n<li>Conductivit\u00e9 \u00e9lectrique<\/li>\n<li>R\u00e9sistance<\/li>\n<li>Fragilit\u00e9<\/li>\n<li>Vitesse<\/li>\n<li>Acc\u00e9l\u00e9ration<\/li>\n<li>\u00c9nergie<\/li>\n<\/ul>\n<p>\netc.<\/p>\n<blockquote><p><noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A2%D0%B5%D0%BF%D0%BB%D0%BE%D0%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%BD%D0%BE%D1%81%D1%82%D1%8C\">Conductivit\u00e9 thermique<\/a><\/noindex> \u2014 capacit\u00e9 des corps mat\u00e9riels \u00e0 conduire de l'\u00e9nergie (chaleur) des parties plus chaudes du corps aux parties moins chaudes par le mouvement chaotique des particules du corps (atomes, mol\u00e9cules, \u00e9lectrons, etc.).\n<\/p><\/blockquote>\n<p> Comment r\u00e9duire la conductivit\u00e9 thermique \u00e0 z\u00e9ro ? <\/p>\n<p>Correct.<\/p>\n<p>R\u00e9duire le nombre d'atomes, de mol\u00e9cules et d'\u00e9lectrons. Autrement dit, cr\u00e9er un vide. <br \/>\nUne telle technologie existe d\u00e9j\u00e0 et est en vente. Appel\u00e9e isolation thermique \u00e0 vide.<br \/>\nPour comparaison, c'est 10 fois moins que la laine min\u00e9rale et 50 fois moins que la brique.<br \/>\nAu final, on peut r\u00e9duire l'\u00e9paisseur des murs de ce facteur.<\/p>\n<p>Et si on r\u00e9duisait la masse \u00e0 z\u00e9ro\u2026<\/p>\n<p>Quoi qu'il en soit, je ne vais pas vous priver de la joie de nouvelles d\u00e9couvertes.<\/p>\n<p>Bonne invention !<br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/456246\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0413\u0440\u0430\u0444\u044b \u2014 \u0441\u0445\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0432\u043e \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0444\u0435\u0440\u0430\u0445. \u041c\u043e\u0434\u0435\u043b\u044c \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432. \u041a\u0440\u0443\u0433\u0438 \u2014 \u0432\u0435\u0440\u0448\u0438\u043d\u044b, \u043b\u0438\u043d\u0438\u0438 \u2014 \u0434\u0443\u0433\u0438 \u0433\u0440\u0430\u0444\u0430 (\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f). \u0415\u0441\u043b\u0438 \u0440\u044f\u0434\u043e\u043c \u0441 \u0434\u0443\u0433\u043e\u0439 \u0446\u0438\u0444\u0440\u0430 \u2014 \u044d\u0442\u043e \u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043c\u0435\u0436\u0434\u0443 \u0442\u043e\u0447\u043a\u0430\u043c\u0438 \u043d\u0430 \u043a\u0430\u0440\u0442\u0435 \u0438\u043b\u0438 \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u0430 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u0435 \u0413\u0430\u043d\u0442\u0430. \u0412 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u043a\u0435 \u0438 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0438\u043a\u0435 \u0432\u0435\u0440\u0448\u0438\u043d\u044b \u2014 \u044d\u0442\u043e \u0434\u0435\u0442\u0430\u043b\u0438 \u0438 \u043c\u043e\u0434\u0443\u043b\u0438, \u043b\u0438\u043d\u0438\u0438 \u2014 \u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u0438. \u0412 \u0433\u0438\u0434\u0440\u0430\u0432\u043b\u0438\u043a\u0435 \u043a\u043e\u0442\u043b\u044b, \u0431\u043e\u0439\u043b\u0435\u0440\u044b, \u0430\u0440\u043c\u0430\u0442\u0443\u0440\u0430, \u0440\u0430\u0434\u0438\u0430\u0442\u043e\u0440\u044b \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26523,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-35355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com 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