[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.cortar.cz\/nove-atomove-hodiny-jsou-nejpresnejsim-casomericem\/#Article","mainEntityOfPage":"https:\/\/www.cortar.cz\/nove-atomove-hodiny-jsou-nejpresnejsim-casomericem\/","headline":"Nov\u00e9 atomov\u00e9 hodiny jsou nejp\u0159esn\u011bj\u0161\u00edm \u010dasom\u011b\u0159i\u010dem","name":"Nov\u00e9 atomov\u00e9 hodiny jsou nejp\u0159esn\u011bj\u0161\u00edm \u010dasom\u011b\u0159i\u010dem","description":"Nov\u00e9 atomov\u00e9 hodiny odhalen\u00e9 ve \u010dtvrtek jsou t\u0159ikr\u00e1t p\u0159esn\u011bj\u0161\u00ed ne\u017e ty, kter\u00e9 byly d\u0159\u00edve pou\u017e\u00edv\u00e1ny k udr\u017een\u00ed ofici\u00e1ln\u00edho \u010dasu ve<a class=\"read-more\" href=\"https:\/\/www.cortar.cz\/nove-atomove-hodiny-jsou-nejpresnejsim-casomericem\/\">Continue reading<\/a>","datePublished":"2023-06-05","dateModified":"2023-06-05","author":{"@type":"Person","@id":"https:\/\/www.cortar.cz\/author\/#Person","name":"","url":"https:\/\/www.cortar.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/1aa4d33840e2afc29128e2a456d425ca0d17b173c888af2db652b1d34fe6f93d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/1aa4d33840e2afc29128e2a456d425ca0d17b173c888af2db652b1d34fe6f93d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"cortar.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.cortar.cz\/wp-content\/uploads\/img_a298436_w2383_t1508782735.png","url":"https:\/\/www.cortar.cz\/wp-content\/uploads\/img_a298436_w2383_t1508782735.png","height":0,"width":0},"url":"https:\/\/www.cortar.cz\/nove-atomove-hodiny-jsou-nejpresnejsim-casomericem\/","wordCount":389,"articleBody":"Nov\u00e9 atomov\u00e9 hodiny odhalen\u00e9 ve \u010dtvrtek jsou t\u0159ikr\u00e1t p\u0159esn\u011bj\u0161\u00ed ne\u017e ty, kter\u00e9 byly d\u0159\u00edve pou\u017e\u00edv\u00e1ny k udr\u017een\u00ed ofici\u00e1ln\u00edho \u010dasu ve Spojen\u00fdch st\u00e1tech, co\u017e z n\u011bj \u010din\u00ed nejp\u0159esn\u011bj\u0161\u00ed \u010dasom\u011b\u0159i\u010d.\u00a0N\u00e1rodn\u00ed institut standard\u016f a technologi\u00ed (NIST), agentura americk\u00e9ho ministerstva obchodu, uvedl, \u017ee nov\u00e9 hodiny &#8211; zn\u00e1m\u00e9 jako NIST-F2 &#8211; budou slou\u017eit jako \u010dasov\u00fd a frekven\u010dn\u00ed standard pro zemi. Ultrazvukov\u00e9 atomov\u00e9 hodiny jsou tak p\u0159esn\u00e9, \u017ee dok\u00e1\u017eou udr\u017eet dokonal\u00fd \u010das na 300 milion\u016f let, ani\u017e by b\u011bhem t\u00e9to doby z\u00edskaly ani neztr\u00e1cely jedinou sekundu.\u00a0Tato p\u0159esnost nejen\u017ee povede k lep\u0161\u00edmu vyu\u017eit\u00ed v\u011bc\u00ed, jako je GPS, ale pravd\u011bpodobn\u011b otev\u0159e \u00fapln\u011b nov\u00e9 aplikace.\u00a0P\u0159edch\u016fdce NIST-F2, NIST-F1, slou\u017eil jako ofici\u00e1ln\u00ed zdroj \u010dasu ve Spojen\u00fdch st\u00e1tech od roku 1999 a bude i nad\u00e1le pou\u017e\u00edv\u00e1n vedle sv\u00e9ho nov\u011bj\u0161\u00edho sourozence.\u00a0F2 je podstatn\u011b p\u0159esn\u011bj\u0161\u00ed ne\u017e na\u0161e sou\u010dasn\u00e9 frekven\u010dn\u00ed standardy. Ovl\u00e1d\u00e1n\u00ed NIST-F2 a NIST-F1 sou\u010dasn\u011b a porovn\u00e1n\u00ed jejich m\u011b\u0159en\u00ed po dlouhou dobu pom\u016f\u017ee v\u00fdzkumn\u00edk\u016fm kalibrovat a zlep\u0161it p\u0159esnost obou hodin.\u00a0Atomov\u00e9 hodiny detekuj\u00ed p\u0159irozen\u00fd tikot nebo vibrace z excitovan\u00fdch atom\u016f, aby se udr\u017eel p\u0159esn\u00fd \u010das. Sou\u010dasn\u00e9 atomov\u00e9 hodiny pou\u017e\u00edvaj\u00ed extr\u00e9mn\u011b chladn\u00e9 atomy cesia. Kdy\u017e je jeden z t\u011bchto atom\u016f vyp\u00e1len mikrovlnami, elektrony, kter\u00e9 ob\u00edhaj\u00ed j\u00e1dro, vibruj\u00ed mezi energetick\u00fdmi stavy. Tak\u017ee atomov\u00e9 hodiny mohou d\u011blat extr\u00e9mn\u011b p\u0159esn\u00e1 m\u011b\u0159en\u00ed za sekundu, zalo\u017een\u00e9 na cyklech z\u00e1\u0159en\u00ed, kter\u00e9 p\u0159en\u00e1\u0161ej\u00ed atom cesia k oscilaci mezi dv\u011bma energetick\u00fdmi stavy.\u00a0NIST-F2, kter\u00fd je ji\u017e desetilet\u00ed vyv\u00edjen, je nejp\u0159esn\u011bj\u0161\u00edmi atomov\u00fdmi hodinami zalo\u017een\u00e9 na cesiu, kter\u00e9 byly vyvinuty NIST, ale fyzici ji\u017e stanovuj\u00ed ambici\u00f3zn\u011bj\u0161\u00ed miln\u00edky. V\u011bdci z NIST ji\u017e pracuj\u00ed na nov\u00e9 generaci atomov\u00fdch hodin, kter\u00e1 bude je\u0161t\u011b lep\u0161\u00ed. Konstrukt\u00e9\u0159i atomov\u00fdch hodin si musej\u00ed b\u00fdt v\u011bdomi faktu, \u017ee konkurence bude cht\u00edt b\u00fdt v\u017edy o krok na p\u0159ed. Nesta\u010d\u00ed tedy jednou zkonstruovat p\u0159esn\u00e9 atomov\u00e9 hodiny a \u010dekat, \u017ee vyn\u00e1lez nebude p\u0159ekon\u00e1n.                                                                                                                                                                                                                                                                                                                                                                                        4.7\/5 - (3 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Nov\u00e9 atomov\u00e9 hodiny jsou nejp\u0159esn\u011bj\u0161\u00edm \u010dasom\u011b\u0159i\u010dem","item":"https:\/\/www.cortar.cz\/nove-atomove-hodiny-jsou-nejpresnejsim-casomericem\/#breadcrumbitem"}]}]