{"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\/cs\/blog\/news\/element-nulevogo-razmera","title":{"rendered":"Prvek nulov\u00e9 velikosti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Prvek nulov\u00e9 velikosti\" src=\"\/wp-content\/uploads\/2019\/06\/f5864c485d1e168253cff083a89252a8.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Grafy jsou schematick\u00e9 zn\u00e1zorn\u011bn\u00ed v mnoha oblastech. <br \/>\nModely re\u00e1ln\u00fdch objekt\u016f.<br \/>\nKruhy \u2013 vrcholy, \u010d\u00e1ry \u2013 oblouky grafu (spoje).<br \/>\nPokud je vedle oblouku \u010d\u00edslo, je to vzd\u00e1lenost mezi body na map\u011b nebo cena na Ganttov\u011b diagramu.<\/p>\n<p>V elekt\u0159in\u011b a elektronice jsou vrcholy sou\u010d\u00e1sti a moduly, \u010d\u00e1ry \u2013 vodi\u010de.<br \/>\nV hydraulice kotle, bojlery, armatury, radi\u00e1tory a trubky.<br \/>\nNa map\u011b \u2013 m\u011bsta a silnice.<\/p>\n<p>Z \u00falohy ze \u0161koly z matematiky:<\/p>\n<blockquote><p>Z m\u00edsta A do m\u00edsta B vyjel autobus. Vzd\u00e1lenost mezi m\u00edsty je 30 km.<\/p><\/blockquote>\n<p>\nA co kdy\u017e je vzd\u00e1lenost 0?<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Prvek nulov\u00e9 velikosti\" src=\"\/wp-content\/uploads\/2019\/06\/e7e4a022f809d65a35bfcb4271d80062.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nSni\u017eujeme vzd\u00e1lenost od h\u0159ebene st\u0159echy k zemi na nulu. Dvoupatrov\u00fd d\u016fm se m\u011bn\u00ed v zemljanku.<\/p>\n<p><img decoding=\"async\" alt=\"Prvek nulov\u00e9 velikosti\" src=\"\/wp-content\/uploads\/2019\/06\/e8df5c82189fcd704475c80b84835a0c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nSni\u017eujeme vzd\u00e1lenost od kotle k radi\u00e1toru (zkracujeme d\u00e9lku trubek) \u2013 dost\u00e1v\u00e1me ruskou pec.<br \/>\nJak u\u017e jste p\u0159edpokl\u00e1dali, technologie funguje ob\u011bma sm\u011bry.<\/p>\n<p>M\u016f\u017eeme bu\u010f zkr\u00e1tit na nulu, nebo zv\u011bt\u0161it do nekone\u010dna.<\/p>\n<p><img decoding=\"async\" alt=\"Prvek nulov\u00e9 velikosti\" src=\"\/wp-content\/uploads\/2019\/06\/ccc119dcbeb5de3cc787b2419bfb6e4b.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nZkr\u00e1cen\u00ed d\u00e9lky elektrick\u00fdch vodi\u010d\u016f vedlo k vytvo\u0159en\u00ed integrovan\u00fdch obvod\u016f.<\/p>\n<p>D\u00e9lka, v\u00fd\u0161ka a \u0161\u00ed\u0159ka \u2013 to jsou geometrick\u00e9 rozm\u011bry. M\u011b\u0159en\u00ed re\u00e1ln\u00e9ho (viditeln\u00e9ho) sv\u011bta.<br \/>\nM\u011b\u0159en\u00ed mohou b\u00fdt i abstraktn\u011bj\u0161\u00ed:<\/p>\n<ul>\n<li>Teplota<\/li>\n<li>\u010cas<\/li>\n<li>Hmotnost<\/li>\n<li>Hustota<\/li>\n<li>Tepeln\u00e1 vodivost<\/li>\n<li>Elektrick\u00e1 vodivost<\/li>\n<li>Pevnost<\/li>\n<li>K\u0159ehkost<\/li>\n<li>Rychlost<\/li>\n<li>Zrychlen\u00ed<\/li>\n<li>Energie<\/li>\n<\/ul>\n<p>\natd.<\/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\">Tepeln\u00e1 vodivost<\/a><\/noindex> \u2013 schopnost materi\u00e1ln\u00edch t\u011bles veden\u00ed energie (tepla) od v\u00edce vyh\u0159\u00e1t\u00fdch \u010d\u00e1st\u00ed t\u011bla k m\u00e9n\u011b vyh\u0159\u00e1t\u00fdm \u010d\u00e1stem t\u011bla prost\u0159ednictv\u00edm chaotick\u00e9ho pohybu \u010d\u00e1stic t\u011bla (atom\u016f, molekul, elektron\u016f atd.).\n<\/p><\/blockquote>\n<p> Jak sn\u00ed\u017eit tepelnou vodivost na nula? <\/p>\n<p>Spr\u00e1vn\u011b.<\/p>\n<p>Sn\u00ed\u017eit po\u010det atom\u016f, molekul a elektron\u016f. Tedy vytvo\u0159it vakuum. <br \/>\nPodobn\u00e1 technologie ji\u017e existuje a prod\u00e1v\u00e1 se. Naz\u00fdv\u00e1 se obrazov\u011b-vakuov\u00e1 tepeln\u00e1 izolace. Panely s tepelnou vodivost\u00ed rovnou 0,004-0,006 W\/m*K.<br \/>\nPro srovn\u00e1n\u00ed, to je 10kr\u00e1t m\u00e9n\u011b ne\u017e u miner\u00e1ln\u00ed vaty a 50kr\u00e1t m\u00e9n\u011b ne\u017e u cihel.<br \/>\nNakonec, tolikr\u00e1t lze zmen\u0161it tlou\u0161\u0165ku st\u011bn.<\/p>\n<p>A co kdy\u017e zmen\u0161\u00edme hmotnost na nulu\u2026<\/p>\n<p>Ka\u017edop\u00e1dn\u011b v\u00e1s nebudu p\u0159ipravovat o radost z nov\u00fdch objev\u016f.<\/p>\n<p>\u0160\u0165astn\u00e1 vyn\u00e1lezy!<br \/>\n<br \/>Zdroj: <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 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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