{"id":6137,"date":"2019-05-07T00:00:00","date_gmt":"2019-05-06T23:00:00","guid":{"rendered":"https:\/\/instrid.sk\/uncategorized\/spacex-pripoji-na-internet-cely-svet-muskov-plan-je-velmi-ambiciozny-a-narocny\/"},"modified":"2019-05-07T00:00:00","modified_gmt":"2019-05-06T23:00:00","slug":"spacex-pripoji-na-internet-cely-svet-muskov-plan-je-velmi-ambiciozny-a-narocny","status":"publish","type":"post","link":"https:\/\/instrid.sk\/en\/archiv\/spacex-pripoji-na-internet-cely-svet-muskov-plan-je-velmi-ambiciozny-a-narocny\/","title":{"rendered":"SpaceX pripoj\u00ed na internet cel\u00fd svet. Muskov pl\u00e1n je ve\u013emi ambici\u00f3zny a n\u00e1ro\u010dn\u00fd"},"content":{"rendered":"

R\u00fdchly internet v\u0161etk\u00fdch obyvate\u013eov Zeme je zdanlivo nere\u00e1lne sci-fi. Ale s\u00fakromn\u00e9 vesm\u00edrne spolo\u010dnosti na \u0148om pracuj\u00fa u\u017e dnes.<\/h3>\n

Zdroj fotografi\u00ed:\u00a0SpaceX<\/em><\/p>\n

Ako \u010d\u00edtate tento \u010dl\u00e1nok? S najv\u00e4\u010d\u0161ou pravdepodobnos\u0165ou cez zariadenie pripojen\u00e9 k Wi-Fi alebo k sieti 4G LTE. My, teda obyvatelia vyspel\u00fdch kraj\u00edn, m\u00e1me na v\u00fdber hne\u010f z nieko\u013ek\u00fdch mo\u017enost\u00ed pripojenia sa na internet a dostupnos\u0165 internetu je preto na relat\u00edvne ve\u013emi vysokej \u00farovni. S\u00fa ale krajiny sveta, v ktor\u00fdch je internet e\u0161te aj v roku 2019 raritou a luxusom.<\/p>\n

V s\u00fa\u010dasnosti nem\u00e1 pr\u00edstup na internet viac ako 3,5 miliardy \u013eud\u00ed, \u010do je prakticky polovica \u013eud\u00ed \u017eij\u00facich na Zemi. D\u00f4vody s\u00fa r\u00f4zne, najv\u00e4\u010d\u0161ie \u00falohy v nedostupnosti internetu zohr\u00e1vaj\u00fa geografick\u00e9 a politick\u00e9 d\u00f4vody. Zav\u00e1dzanie internetu na vidiek a do roz\u013eahl\u00fdch kraj\u00edn s n\u00e1ro\u010dn\u00fdm ter\u00e9nom alebo naopak s p\u00fa\u0161\u0165ami je ekonomicky i fyzicky nezvl\u00e1dnute\u013en\u00e9.<\/p>\n

Je nemo\u017en\u00e9, aby mal cel\u00fd svet pr\u00edstup k r\u00fdchlemu internetu cez k\u00e1bel. Vyvies\u0165 k\u00e1ble do slumov, os\u00e1d, h\u00f4r \u010di p\u00fa\u0161t\u00ed je nere\u00e1lne, preto mus\u00ed internet prich\u00e1dza\u0165 bezdr\u00f4tovo. Takisto vybavi\u0165 preva\u017ene ju\u017en\u00e9 kontinenty satelitmi by bolo finan\u010dne mimoriadne n\u00e1kladn\u00e9, \u010dastokr\u00e1t technicky nemo\u017en\u00e9.<\/p>\n

Ve\u017ee so 4G sign\u00e1lom s\u00fa s\u00edce skvel\u00e9 vo vyspel\u00fdch zastavan\u00fdch oblastiach, jedna ve\u017ea dok\u00e1\u017ee na internet pripoji\u0165 tis\u00edce \u013eud\u00ed. Len\u017ee v \u010dlenitom ter\u00e9ne, napr\u00edklad v hor\u00e1ch a kopcoch, nar\u00e1\u017eaj\u00fa ve\u017ee so 4G na z\u00e1sadn\u00e9 obmedzenia. Preto musia by\u0165 ve\u013emi vysok\u00e9 a plat\u00ed, \u017ee \u010d\u00edm je vysiela\u010d vy\u0161\u0161ie, t\u00fdm menej na neho vpl\u00fdva ter\u00e9n.<\/p>\n

Google a Facebook sa anga\u017euj\u00fa aj v tejto oblasti – Google m\u00e1 v prev\u00e1dzke meteorologick\u00fd bal\u00f3n, ktor\u00fd sa pohybuje na hornej hranici zemskej atmosf\u00e9ry a \u0161\u00edri online pripojenie do miest, v ktor\u00fdch nie je internet inak dostupn\u00fd. Facebook to sk\u00fa\u0161a s bezpilotn\u00fdmi lietadlami schopn\u00fdmi lieta\u0165 a\u017e tri mesiace v kuse. Obe rie\u0161enia s\u00fa v\u0161ak v z\u00e1sadnej miere ovplyv\u0148ovan\u00e9 po\u010das\u00edm. Rie\u0161enie sa teda \u010drt\u00e1 a\u017e za hranicami atmosf\u00e9ry, a\u017e na orbite Zeme. A tu sa dost\u00e1vame k SpaceX.<\/p>\n Falcon 9 a Dragon, \u0161tart z komplexu 39A\n

SpaceX zalo\u017eil Elon Musk, jedn\u00e1 sa o spolo\u010dnos\u0165 zaoberaj\u00facu sa vesm\u00edrnym v\u00fdskumom a vesm\u00edrnou dopravou. Spolo\u010dnos\u0165 pl\u00e1nuje vynies\u0165 do vesm\u00edru satelity, ktor\u00e9 spr\u00edstupnia internet cel\u00e9mu svetu. Doslova cel\u00e9mu svetu. Bli\u017e\u0161ie inform\u00e1cie s\u00edce SpaceX nezverej\u0148uje, ale pod\u013ea dokumentov zverejnen\u00fdch \u00faradom FCC sa projekt vol\u00e1 Starlink a jeho z\u00e1merom je na obe\u017en\u00fa dr\u00e1hu Zeme vynies\u0165 viac ako 4 425 satelitov. Len pre zauj\u00edmavos\u0165, dnes ich okolo Zeme kr\u00fa\u017ei pribli\u017ene 2 220- SpaceX teda chce na orbit posla\u0165 trojn\u00e1sobok toho, \u010do je hore teraz. Jedn\u00e1 sa o mimoriadne ambici\u00f3zny pl\u00e1n, ktor\u00e9ho technick\u00e1 a finan\u010dn\u00e1 n\u00e1ro\u010dnos\u0165 je jasn\u00e1 asi ka\u017ed\u00e9mu. Bude sa jedna\u0165 o miliardy a miliardy americk\u00fdch dol\u00e1rov.<\/p>\n

Muskov pl\u00e1n m\u00e1 dve f\u00e1zy. V prvej bude satelitmi s internetom pokryt\u00e9 \u00fazemie Spojen\u00fdch \u0161t\u00e1tov americk\u00fdch, to by sa malo podari\u0165 okolo roku 2020. Teda u\u017e \u010doskoro. Zvy\u0161ok sveta by mal by\u0165 pokryt\u00fd u\u017e v roku 2023. Pripojenie by malo by\u0165 dos\u0165 stabiln\u00e9, r\u00fdchle a s n\u00edzkou latenciou, aby sa prostredn\u00edctvom neho dali hra\u0165 aj online hry.<\/p>\n

 <\/p>\n Falcon 9 Droneship pri prvom \u00faspe\u0161nom n\u00e1vrate z vesm\u00edru na Zem.\n

Nebude sa v\u0161ak jedna\u0165 o konven\u010dn\u00fd satelitn\u00fd internet, ktor\u00fd u\u017e k dispoz\u00edcii je. Ten je pomal\u00fd, d\u00e1tovo limitovan\u00fd a drah\u00fd. Podstatou cel\u00e9ho biznisu SpaceX s\u00fa obnovite\u013en\u00e9 rakety, ktor\u00e9 vedia bezpe\u010dne prist\u00e1\u0165 na Zemi po tom, \u010do na orbit Zeme vyniesli n\u00e1klad. V\u00fdroba jednej z nich stoj\u00ed pribli\u017ene 100 mili\u00f3nov dol\u00e1rov. Pred SpaceX v\u0161etky tak\u00e9to rakety kon\u010dili na dne oce\u00e1nu. Zauj\u00edmavos\u0165ou je, \u017ee Jeff Bezos, zakladate\u013e Amazonu, nie tak d\u00e1vno organizoval podmorsk\u00e9 exped\u00edcie, ktor\u00e9 vylovili motory z rakiet misi\u00ed Apollo, ktor\u00e9 dostali \u013eud\u00ed a\u017e na Mesiac.<\/p>\n

\u0160tart ka\u017edej rakety od SpaceX je pre ich znovupou\u017eite\u013enos\u0165 20-n\u00e1sobne lacnej\u0161ia ako v NASA. Namiesto 100 mili\u00f3nov dol\u00e1rov stoj\u00ed jeden \u0161tart okolo 5 mili\u00f3nov. To znamen\u00e1, \u017ee namiesto ve\u013ek\u00fdch, drah\u00fdch a v\u00fdkonn\u00fdch satelitov by bolo mo\u017en\u00e9 na obe\u017en\u00fa dr\u00e1hu Zeme dosta\u0165 ve\u013ek\u00e9 mno\u017estvo lacnej\u0161\u00edch.\u00a0 V priebehu piatich rokov ich m\u00e1 by\u0165 \u201etam hore\u201c a\u017e 4 425.<\/p>\n

Aby ste mali predstavu o ve\u013ekosti SpaceX, od roku 2002 poriadne nar\u00e1stla. Dnes m\u00e1 viac ako 6 000 zamestnancov.<\/p>\n

 <\/p>\n

SpaceX ale nie je jedinou spolo\u010dnos\u0165ou, ktor\u00e1 m\u00e1 podobn\u00fd pl\u00e1n. Zna\u010dka OneWeb m\u00e1 podobn\u00e9 z\u00e1mery a chce na to vyu\u017ei\u0165 peniaze, ktor\u00e9 z\u00edskala napr\u00edklad aj od Google. Na vynesenie satelitov mieni pou\u017ei\u0165 rakety New Glenn vesm\u00edrnej spolo\u010dnosti Blue Origin, ktor\u00fa zalo\u017eil\u00a0 u\u017e vy\u0161\u0161ie zmienen\u00fd Jeff Bezos.<\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Elon Musk op\u00e4\u0165 rob\u00ed nie\u010do, \u010do sa zap\u00ed\u0161e do hist\u00f3rie.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-6137","post","type-post","status-publish","format-standard","hentry","category-archiv","two-columns"],"_links":{"self":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/6137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/comments?post=6137"}],"version-history":[{"count":0,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/posts\/6137\/revisions"}],"wp:attachment":[{"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/media?parent=6137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/categories?post=6137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/instrid.sk\/en\/wp-json\/wp\/v2\/tags?post=6137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}