[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.cebera.cz\/podmorske-kabely-internet-na-dne-oceanu\/#Article","mainEntityOfPage":"https:\/\/www.cebera.cz\/podmorske-kabely-internet-na-dne-oceanu\/","headline":"Podmo\u0159sk\u00e9 kabely: internet na dn\u011b oce\u00e1nu","name":"Podmo\u0159sk\u00e9 kabely: internet na dn\u011b oce\u00e1nu","description":"Internet je pro mnoh\u00e9 cosi jako \u00e9ter, neviditeln\u00e1 l\u00e1tka nesouc\u00ed se vzduchem. Pro v\u011bt\u0161inu jeho u\u017eivatel\u016f je tak p\u0159irozen\u00e9 b\u00fdt neust\u00e1le online, \u017ee zapom\u00ednaj\u00ed, co se ukr\u00fdv\u00e1 v pozad\u00ed a umo\u017e\u0148uje jeho fungov\u00e1n\u00ed. To co pova\u017eujeme za internet, nen\u00ed omezeno pouze na e-mailov\u00e9 zpr\u00e1vy, videa na YouTube nebo p\u0159\u00edsp\u011bvky na Facebooku \u010di Twitteru. Aby toto...","datePublished":"2023-05-11","dateModified":"2023-05-11","author":{"@type":"Person","@id":"https:\/\/www.cebera.cz\/author\/#Person","name":"","url":"https:\/\/www.cebera.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/bbaa4e9a58aac4329fe0ade0f3fb816f09f0dc43c21f6e884dccfbc124b16b29?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/bbaa4e9a58aac4329fe0ade0f3fb816f09f0dc43c21f6e884dccfbc124b16b29?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"cebera.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.cebera.cz\/wp-content\/uploads\/img_a309798_w2075_t1520843051.jpg","url":"https:\/\/www.cebera.cz\/wp-content\/uploads\/img_a309798_w2075_t1520843051.jpg","height":0,"width":0},"url":"https:\/\/www.cebera.cz\/podmorske-kabely-internet-na-dne-oceanu\/","wordCount":365,"articleBody":"Internet je pro mnoh\u00e9 cosi jako \u00e9ter, neviditeln\u00e1 l\u00e1tka nesouc\u00ed se vzduchem. Pro v\u011bt\u0161inu jeho u\u017eivatel\u016f je tak p\u0159irozen\u00e9 b\u00fdt neust\u00e1le online, \u017ee zapom\u00ednaj\u00ed, co se ukr\u00fdv\u00e1 v pozad\u00ed a umo\u017e\u0148uje jeho fungov\u00e1n\u00ed. To co pova\u017eujeme za internet, nen\u00ed omezeno pouze na e-mailov\u00e9 zpr\u00e1vy, videa na YouTube nebo p\u0159\u00edsp\u011bvky na Facebooku \u010di Twitteru. Aby toto v\u0161echno bylo mo\u017en\u00e9, je zapot\u0159eb\u00ed materi\u00e1ln\u00ed infrastruktura, po\u010d\u00ednaje optick\u00fdmi vl\u00e1kny nebo m\u011bd\u011bn\u00fdmi kabely, kter\u00e9 propojuj\u00ed na\u0161e domovy s rozvad\u011b\u010di na\u0161eho poskytovatele p\u0159ipojen\u00ed a kon\u010de servery, jen\u017e ukl\u00e1daj\u00ed data ze str\u00e1nek, kter\u00e9 nav\u0161t\u011bvujeme, nebo zprost\u0159edkov\u00e1vaj\u00ed slu\u017eby, kter\u00e9 vyu\u017e\u00edv\u00e1me v r\u00e1mci online p\u0159ipojen\u00ed. A propojen\u00ed v\u0161ech t\u011bchto prost\u0159edk\u016f zaji\u0161\u0165uj\u00ed kilometry kabel\u016f Ethernet, pop\u0159\u00edpad\u011b optick\u00fdch kabel\u016f, kter\u00e9 spojuj\u00ed servery, sm\u011brova\u010de, po\u010d\u00edta\u010de a v kone\u010dn\u00e9m v\u00fdsledku i zem\u011b a kontinenty.Prvn\u00ed mezikontinent\u00e1ln\u00ed propojen\u00ed ve form\u011b podmo\u0159sk\u00e9ho m\u011bd\u011bn\u00e9ho kabelu se datuje do roku 1858. Ve skute\u010dnosti se v\u0161ak jednalo o stovky kabel\u016f obalen\u00fdch t\u0159emi vrstvami izol\u00e1toru spojuj\u00edc\u00edch Irsko a kanadsk\u00fd ostrov Newfoundland. Zpo\u010d\u00e1tku byl kabel rozd\u011blen na dv\u011b \u010d\u00e1sti, jejich\u017e spojen\u00ed bylo obstar\u00e1no dv\u011bma lod\u011bmi, kter\u00e9 se setkaly na p\u016fli cesty mezi Irskem a Kanadou. P\u016fvodn\u00edm \u00fa\u010delem kabelu bylo zaji\u0161t\u011bn\u00ed telegrafn\u00ed komunikace. V roce 1866 byl nahrazen jin\u00fdm zdokonalen\u00fdm kabelem. Po\u010d\u00e1tkem druh\u00e9 poloviny 20. stolet\u00ed byl m\u011bd\u011bn\u00fd kabel postupn\u011b nahrazov\u00e1n optick\u00fdm vl\u00e1knem a v roce 1988 byl instalov\u00e1n TAT-8, prvn\u00ed z podmo\u0159sk\u00fdch optick\u00fdch kabel\u016f, kter\u00e9 vyu\u017e\u00edv\u00e1me dodnes. Tento kabel, jen\u017e v sob\u011b zahrnoval celkem t\u0159i dal\u0161\u00ed kabely optick\u00e9ho vl\u00e1kna, poskytoval rychlost 20 megabit\u016f za sekundu.Co se t\u00fd\u010de slo\u017een\u00ed, sou\u010dasn\u00e9 kabely se krom\u011b samotn\u00e9ho optick\u00e9ho vl\u00e1kna vyzna\u010duj\u00ed i n\u011bkolika izola\u010dn\u00edmi a ochrann\u00fdmi vrstvami z polyetyl\u00e9nu, pleten\u00e9 oceli, m\u011bdi nebo hlin\u00edku.                                                                                                                                                                                                                                                                                                                                                                                        4.5\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Podmo\u0159sk\u00e9 kabely: internet na dn\u011b oce\u00e1nu","item":"https:\/\/www.cebera.cz\/podmorske-kabely-internet-na-dne-oceanu\/#breadcrumbitem"}]}]