[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.freesia.cz\/h2-veda-a-technika-nas-neprestava-fascinovat\/#Article","mainEntityOfPage":"https:\/\/www.freesia.cz\/h2-veda-a-technika-nas-neprestava-fascinovat\/","headline":"H2 V\u011bda a technika n\u00e1s nep\u0159est\u00e1v\u00e1 fascinovat","name":"H2 V\u011bda a technika n\u00e1s nep\u0159est\u00e1v\u00e1 fascinovat","description":"\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 V\u00a0dne\u0161n\u00ed dob\u011b jsou d\u00edky r\u016fzn\u00fdm zvukov\u00fdm z\u00e1znam\u016fm a za\u0159\u00edzen\u00edm k\u00a0p\u0159ehr\u00e1v\u00e1n\u00ed.","datePublished":"2023-05-18","dateModified":"2023-05-18","author":{"@type":"Person","@id":"https:\/\/www.freesia.cz\/author\/#Person","name":"","url":"https:\/\/www.freesia.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4860d213c5bedfa07ff2b166ff7b069759f9dbf79eae813578c75f9f8cb939b7?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4860d213c5bedfa07ff2b166ff7b069759f9dbf79eae813578c75f9f8cb939b7?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"freesia.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.freesia.cz\/wp-content\/uploads\/img_a295474_w2222_t1506802773.jpg","url":"https:\/\/www.freesia.cz\/wp-content\/uploads\/img_a295474_w2222_t1506802773.jpg","height":0,"width":0},"url":"https:\/\/www.freesia.cz\/h2-veda-a-technika-nas-neprestava-fascinovat\/","wordCount":404,"articleBody":"\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 V\u00a0dne\u0161n\u00ed dob\u011b jsou d\u00edky r\u016fzn\u00fdm zvukov\u00fdm z\u00e1znam\u016fm a za\u0159\u00edzen\u00edm k\u00a0p\u0159ehr\u00e1v\u00e1n\u00ed zvukov\u00fdch stop, nep\u0159ebern\u00e1 kvanta nahr\u00e1vek. Od melodi\u00ed elektronick\u00fdch nebo p\u0159\u00edrodn\u00edch z\u00a0\u017eivo\u010di\u0161n\u00e9 \u0159\u00ed\u0161e a\u017e po hudebn\u00ed produkce profesion\u00e1ln\u00edch hudebn\u00edk\u016f. Ale nyn\u00ed d\u00edky pr\u00e1ci astro seismolog\u016f je mo\u017en\u00e9 si p\u0159ehr\u00e1t a poslechnout t\u0159eba melodii, kterou produkuje kup\u0159\u00edkladu ml\u00e9\u010dn\u00e1 dr\u00e1ha. Astrofyzici university v\u00a0Birminghamu zaznamen\u00e1vali kol\u00edsav\u00e9 zm\u011bny v jasu hv\u011bzd, aby mohli ur\u010dit jejich st\u00e1\u0159\u00ed a hmotnost. P\u0159ed ned\u00e1vnem se jim poda\u0159ilo zaznamenat oscilace v\u00a0mlhovin\u011b M4, co\u017e je nejstar\u0161\u00ed zn\u00e1m\u00e1 hv\u011bzdokupa na\u0161\u00ed Galaxie. Jej\u00ed st\u00e1\u0159\u00ed je odhadov\u00e1no na t\u0159in\u00e1ct miliard let.\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u0160neci prokazateln\u011b ke sv\u00e9mu rozhodov\u00e1n\u00ed pou\u017e\u00edvaj\u00ed pouze dv\u011b mozkov\u00e9 bu\u0148ky. Pro p\u0159edstavu to funguje tak \u017ee jeden neuron vys\u00edl\u00e1 sign\u00e1l o p\u0159\u00edtomnosti j\u00eddla a druh\u00fd definuje \u0161nekovu motivaci. Konkr\u00e9tn\u011bji to prob\u00edh\u00e1 asi takto: \u201eT\u00e1mhle je j\u00eddlo!\u201c, \u201eM\u00e1m hlad?\u201c a z\u00e1v\u011brem je: \u201e\u010cas na sva\u010dinu!\u201c. Zn\u00ed to ban\u00e1ln\u011b, ale v\u011bdci chov\u00e1n\u00ed \u0161nek\u016f nezkoumaj\u00ed, proto\u017ee nemaj\u00ed nic lep\u0161\u00edho na pr\u00e1ci, ale proto, \u017ee tyto poznatky jim pom\u00e1haj\u00ed p\u0159i tvorb\u011b nov\u00fdch syst\u00e9m\u016f rozhodov\u00e1n\u00ed zalo\u017een\u00fdch jen na dvou neuronech. Na t\u011bchto principech funguj\u00ed kup\u0159\u00edkladu robotick\u00e9 mozky.\u00b7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Vznik nov\u00e9ho algoritmu umo\u017e\u0148uje dvounoh\u00e9mu humanoidn\u00edmu robotu jm\u00e9nem Atlas, mnohem l\u00e9pe a rychleji reagovat na nestabilitu povrchu. Automaticky se mu p\u0159izp\u016fsobovat a t\u00edm se udr\u017eovat v\u00a0rovnov\u00e1ze. Robot, kter\u00e9ho vyv\u00edj\u00ed americk\u00e1 spole\u010dnost Boston Dynamics, je 188 centimetr\u016f vysok\u00fd a sto pades\u00e1t \u0161est a p\u016fl kilogramu v\u00e1\u017e\u00edc\u00ed robotick\u00fd drobe\u010dek. Atlas bude v\u00a0budoucnu vyu\u017e\u00edv\u00e1n hlavn\u011b k\u00a0vyhled\u00e1v\u00e1n\u00ed a z\u00e1chran\u011b osob. Tento robot vznikal ve dvou proveden\u00edch. Prvn\u00ed verze mechanoida byla skrze nap\u00e1jen\u00ed upoutan\u00e1 a nemohla se samostatn\u011b pohybovat. U nov\u011bj\u0161\u00ed verze\u00a0p\u0159edstaven\u00e9 v\u00a0lednu 2015 a vybaven\u00e9 lithium-iontov\u00fdm akumul\u00e1torem o kapacit\u011b 3,7Kw. D\u00edky kter\u00e9mu dok\u00e1\u017ee robot samostatn\u011b pracovat v\u00a0rozmez\u00ed jedn\u00e9 hodiny. Nav\u00edc se poda\u0159ilo sn\u00ed\u017eit i hlu\u010dnost provozu a nov\u00e1 hydraulika zv\u00fd\u0161ila jeho obratnost a s\u00edlu.                                                                                                                                                                                                                                                                                                                                                                                                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