[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.portimex.cz\/rubikova-kostka-po-46-letech\/#Article","mainEntityOfPage":"https:\/\/www.portimex.cz\/rubikova-kostka-po-46-letech\/","headline":"Rubikova kostka po 46 letech","name":"Rubikova kostka po 46 letech","description":"Pod n\u00e1zvem „Magic cube“ byla patentovan\u00e1 ma\u010farsk\u00fdm architektem Ern\u0151m Rubikem 16. ledna 1974. Dnes tomuto hlavolamu v\u0161ak nikdo ne\u0159ekne jinak ne\u017e Rubikova kostka. P\u0159esto\u017ee je velmi roz\u0161\u00ed\u0159en\u00e1 tak\u0159ka po cel\u00e9m sv\u011bt\u011b, tr\u00e1p\u00ed svoj\u00ed obt\u00ed\u017enost\u00ed \u0159adu chytr\u00fdch hlav. Jednoduch\u00e1 a p\u0159esto slo\u017eit\u00e1 Na prvn\u00ed pohled se jedn\u00e1 o jednoduch\u00fd hlavolam ve tvaru kostky slo\u017een\u00fd dev\u00edti men\u0161\u00edch […]","datePublished":"2020-01-14","dateModified":"2023-05-19","author":{"@type":"Person","@id":"https:\/\/www.portimex.cz\/author\/#Person","name":"","url":"https:\/\/www.portimex.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/0ee2b6192cd06dcea0b65614729a0b10cafbccdb71fa9a5d2ca8d0d37da5c054?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0ee2b6192cd06dcea0b65614729a0b10cafbccdb71fa9a5d2ca8d0d37da5c054?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"portimex.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.portimex.cz\/wp-content\/uploads\/img_a367673_w3140_t1580196671.png","url":"https:\/\/www.portimex.cz\/wp-content\/uploads\/img_a367673_w3140_t1580196671.png","height":0,"width":0},"url":"https:\/\/www.portimex.cz\/rubikova-kostka-po-46-letech\/","about":["Technika"],"wordCount":436,"articleBody":"Pod n\u00e1zvem „Magic cube“ byla patentovan\u00e1 ma\u010farsk\u00fdm architektem Ern\u0151m Rubikem 16. ledna 1974. Dnes tomuto hlavolamu v\u0161ak nikdo ne\u0159ekne jinak ne\u017e Rubikova kostka. P\u0159esto\u017ee je velmi roz\u0161\u00ed\u0159en\u00e1 tak\u0159ka po cel\u00e9m sv\u011bt\u011b, tr\u00e1p\u00ed svoj\u00ed obt\u00ed\u017enost\u00ed \u0159adu chytr\u00fdch hlav.\tJednoduch\u00e1 a p\u0159esto slo\u017eit\u00e1\tNa prvn\u00ed pohled se jedn\u00e1 o jednoduch\u00fd hlavolam ve tvaru kostky slo\u017een\u00fd dev\u00edti men\u0161\u00edch kosti\u010dek na ka\u017ed\u00e9 stran\u011b. Jako jednoduch\u00fd se v\u0161ak opravdu jev\u00ed jen na prvn\u00ed pohled. Po\u010det kombinac\u00ed, ve kter\u00e9m m\u016f\u017ee b\u00fdt kostka poskl\u00e1dan\u00e1, v\u00e1m pravd\u011bpodobn\u011b vyraz\u00ed dech. Rubikova kostka v sob\u011b ukr\u00fdv\u00e1 43 trilion\u016f kombinac\u00ed, co\u017e je \u010d\u00edslo s 18 nulami. Pro lep\u0161\u00ed p\u0159edstavu si p\u0159edstavte, \u017ee nap\u00ed\u0161ete ka\u017edou kombinaci na list pap\u00edru. Kdybychom pak tyto pap\u00edry poskl\u00e1dali za sebe, vyplnily by prostor mezi Zem\u00ed a Plutem.\tMatematicky m\u016f\u017eeme po\u010det v\u0161ech mo\u017en\u00fdch \u0159e\u0161en\u00ed vyj\u00e1d\u0159it jako 8! kr\u00e1t 40 320 mo\u017enost\u00ed. Ty ur\u010duj\u00ed, jak m\u016f\u017eeme uspo\u0159\u00e1dat rohy kostky. Ka\u017ed\u00fd z roh\u016f m\u016f\u017ee m\u00edt je\u0161t\u011b t\u0159i orientace. K tomu je\u0161t\u011b existuje 12!\/2 kr\u00e1t 239 500 800 mo\u017en\u00fdch uspo\u0159\u00e1d\u00e1n\u00ed hran. Po\u010det \u0159e\u0161en\u00ed je omezen jej\u00edm konstruk\u010dn\u00edm \u0159e\u0161en\u00edm. Kdybychom kostku rozebrali a odstranili omezen\u00ed v kloubech, dostali bychom se na astronomick\u00fdch 519 trilion\u016f kombinac\u00ed.\t\tVe sv\u011btle t\u011bchto skute\u010dnost\u00ed vypad\u00e1 skoro neuv\u011b\u0159iteln\u011b, \u017ee mezi n\u00e1mi \u017eij\u00ed lid\u00e9, kte\u0159\u00ed jsou schopni Rubikovu kostku poskl\u00e1dat do deseti sekund. Jsou zn\u00e1m\u00ed jako „Speed Cubers“ a nejlep\u0161\u00edmu z nich se poda\u0159ilo hlavolam slo\u017eit za m\u00e9n\u011b ne\u017e 3,5 sekundy. Ani on se v\u0161ak nem\u016f\u017ee rovnat nejrychlej\u0161\u00edmu \u0159e\u0161iteli na sv\u011bt\u011b, k\u00fdm je kdo jin\u00fd, ne\u017e stroj. Slo\u017e\u00ed ji za 0,38 sekundy. Oby\u010dejn\u00fd \u010dlov\u011bk se pak Rubikovu kostku nau\u010d\u00ed slo\u017eit v rozumn\u00e9m \u010dase b\u011bhem n\u011bkolika t\u00fddn\u016f.\tKolik pohyb\u016f je pro spr\u00e1vn\u00e9 slo\u017een\u00ed kostky pot\u0159eba? Tato ot\u00e1zka m\u016f\u017ee zn\u00edt jednodu\u0161e, ale i v tomto p\u0159\u00edpad\u011b zd\u00e1n\u00ed klame. V\u011bdeck\u00fd t\u00fdm zadal tuto ot\u00e1zku superpo\u010d\u00edta\u010di Google v roce 2010. Uk\u00e1zalo se, \u017ee aby po\u010d\u00edta\u010d p\u0159i\u0161el na spr\u00e1vnou odpov\u011b\u010f, pot\u0159eboval by k tomu 35 let. Byla tak pot\u0159eba ur\u010dit\u00e1 aproximace a nejmen\u0161\u00ed po\u010det tah\u016f byl stanoven na 18 a\u017e 20.                                                                                                                                                                                                                                                                                                                                                                                        4.2\/5 - (6 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Rubikova kostka po 46 letech","item":"https:\/\/www.portimex.cz\/rubikova-kostka-po-46-letech\/#breadcrumbitem"}]}]