Vesm\u00edrn\u00e9 v\u00fdtahy jsou vzru\u0161uj\u00edc\u00ed koncept, kter\u00fd uchv\u00e1til p\u0159edstavivost v\u011bdc\u016f i nad\u0161enc\u016f sci-fi. Tyto velkolep\u00e9 struktury by revolucionalizovaly cestov\u00e1n\u00ed do vesm\u00edru t\u00edm, \u017ee by poskytly n\u00e1kladov\u011b efektivn\u00ed a ekologick\u00fd zp\u016fsob, jak dos\u00e1hnout ob\u011b\u017en\u00e9 dr\u00e1hy.<\/p>\n\n
Z\u00e1kladn\u00ed my\u0161lenka vesm\u00edrn\u00e9ho v\u00fdtahu je jednoduch\u00e1: kabel ukotven\u00fd k plo\u0161in\u011b na Zemi by se t\u00e1hl des\u00edtky tis\u00edc kilometr\u016f do vesm\u00edru s termin\u00e1lem na konci, kter\u00fd by se pohyboval synchronn\u011b s ob\u011b\u017enou dr\u00e1hou Zem\u011b. To by umo\u017enilo vozidl\u016fm stoupat a klesat po kabelu pomoc\u00ed elektromagnetick\u00e9ho pohonu, co\u017e by eliminovalo pot\u0159ebu n\u00e1kladn\u00fdch a zne\u010di\u0161\u0165uj\u00edc\u00edch raketov\u00fdch start\u016f.<\/p>\n\n
Jednou z nejv\u011bt\u0161\u00edch v\u00fdzev p\u0159i stavb\u011b vesm\u00edrn\u00e9ho v\u00fdtahu je naj\u00edt materi\u00e1l, kter\u00fd je dostate\u010dn\u011b pevn\u00fd a lehk\u00fd, aby odolal extr\u00e9mn\u00edm sil\u00e1m, kter\u00e9 jsou zahrnuty. Uhl\u00edkov\u00e9 nanotrubice, mal\u00e9 v\u00e1lce vz\u00e1jemn\u011b propojen\u00fdch molekul uhl\u00edku, se uk\u00e1zaly jako slibn\u00fd kandid\u00e1t pro tuto aplikaci.<\/p>\n\n
Uhl\u00edkov\u00e9 nanotrubice maj\u00ed v\u00fdjime\u010dnou pevnost v tahu, d\u00edky \u010demu\u017e jsou pevn\u011bj\u0161\u00ed ne\u017e ocel, ale leh\u010d\u00ed ne\u017e hlin\u00edk. To je \u010din\u00ed ide\u00e1ln\u00edmi pro stavbu kabelu, kter\u00fd by nesl vesm\u00edrn\u00fd v\u00fdtah. Nov\u00e9 v\u00fdzkumy v\u0161ak zpochybnily pou\u017eitelnost uhl\u00edkov\u00fdch nanotrubic pro tento \u00fa\u010del.<\/p>\n\n
Zat\u00edmco dokonale konstruovan\u00e9 uhl\u00edkov\u00e9 nanotrubice by mohly poskytnout pot\u0159ebnou pevnost pro vesm\u00edrn\u00fd v\u00fdtah, i jedin\u00fd nespr\u00e1vn\u011b um\u00edst\u011bn\u00fd atom m\u016f\u017ee v\u00fdznamn\u011b sn\u00ed\u017eit jejich pevnost v tahu. Je to proto, \u017ee uhl\u00edkov\u00e9 nanotrubice maj\u00ed \u0161estihrannou m\u0159\u00ed\u017ekovou strukturu a jak\u00e9koli naru\u0161en\u00ed t\u00e9to struktury m\u016f\u017ee vytvo\u0159it slabost, kter\u00e1 se m\u016f\u017ee \u0161\u00ed\u0159it celou nanotrubic\u00ed.<\/p>\n\n
Dal\u0161\u00ed v\u00fdzvou p\u0159i pou\u017eit\u00ed uhl\u00edkov\u00fdch nanotrubic pro vesm\u00edrn\u00e9 v\u00fdtahy je obt\u00ed\u017enost jejich hromadn\u00e9 v\u00fdroby s po\u017eadovanou kvalitou. V\u011bt\u0161ina sou\u010dasn\u00fdch v\u00fdrobn\u00edch metod produkuje uhl\u00edkov\u00e9 nanotrubice s defekty a je obt\u00ed\u017en\u00e9 vyr\u00e1b\u011bt velk\u00e9 mno\u017estv\u00ed vysoce kvalitn\u00edch nanotrubic konzistentn\u011b.<\/p>\n\n
Nejnov\u011bj\u0161\u00ed v\u00fdzkum uhl\u00edkov\u00fdch nanotrubic zd\u016fraz\u0148uje v\u00fdzvy, kter\u00fdm \u010del\u00ed v\u011bdci p\u0159i v\u00fdvoji funk\u010dn\u00edho vesm\u00edrn\u00e9ho v\u00fdtahu. P\u0159esto\u017ee uhl\u00edkov\u00e9 nanotrubice z\u016fst\u00e1vaj\u00ed slibn\u00fdm materi\u00e1lem, jejich citlivost na defekty a obt\u00ed\u017ee s hromadnou v\u00fdrobou vysoce kvalitn\u00edch nanotrubic p\u0159edstavuj\u00ed v\u00fdznamn\u00e9 p\u0159ek\u00e1\u017eky.<\/p>\n\n
To neznamen\u00e1, \u017ee vesm\u00edrn\u00e9 v\u00fdtahy jsou nemo\u017en\u00e9, ale nazna\u010duje to, \u017ee v\u011bdci maj\u00ed je\u0161t\u011b hodn\u011b pr\u00e1ce, ne\u017e se tento futuristick\u00fd koncept stane realitou.<\/p>\n\n
V\u011bdci zkoumaj\u00ed r\u016fzn\u00e9 p\u0159\u00edstupy k p\u0159ekon\u00e1n\u00ed v\u00fdzev s uhl\u00edkov\u00fdmi nanotrubicemi. Jedn\u00edm ze slibn\u00fdch sm\u011br\u016f je v\u00fdvoj nov\u00fdch v\u00fdrobn\u00edch technik, kter\u00e9 by mohly vyr\u00e1b\u011bt vysoce kvalitn\u00ed nanotrubice konzistentn\u011bj\u0161\u00edm zp\u016fsobem. Dal\u0161\u00edm p\u0159\u00edstupem je zkoum\u00e1n\u00ed alternativn\u00edch materi\u00e1l\u016f, kter\u00e9 mohou b\u00fdt vhodn\u011bj\u0161\u00ed pro konstrukci vesm\u00edrn\u00fdch v\u00fdtah\u016f.<\/p>\n\n
P\u0159esto\u017ee v\u00fdvoj vesm\u00edrn\u00fdch v\u00fdtah\u016f m\u016f\u017ee trvat d\u00e9le, ne\u017e se p\u016fvodn\u011b p\u0159edpokl\u00e1dalo, potenci\u00e1ln\u00ed v\u00fdhody jsou p\u0159\u00edli\u0161 velk\u00e9, aby je bylo mo\u017en\u00e9 ignorovat. Pokud v\u011bdci dok\u00e1\u017e\u00ed p\u0159ekonat materi\u00e1lov\u00e9 v\u00fdzvy, vesm\u00edrn\u00e9 v\u00fdtahy by mohly zm\u011bnit pr\u016fzkum vesm\u00edru a otev\u0159\u00edt nov\u00e9 mo\u017enosti pro lidskou p\u0159\u00edtomnost ve vesm\u00edru.<\/p>","protected":false},"excerpt":{"rendered":"
Vesm\u00edrn\u00e9 v\u00fdtahy: Futuristick\u00fd koncept brzd\u011bn\u00fd materi\u00e1lov\u00fdmi v\u00fdzvami Sen o vesm\u00edrn\u00fdch v\u00fdtaz\u00edch Vesm\u00edrn\u00e9 v\u00fdtahy jsou vzru\u0161uj\u00edc\u00ed koncept, kter\u00fd uchv\u00e1til p\u0159edstavivost v\u011bdc\u016f i nad\u0161enc\u016f sci-fi. Tyto velkolep\u00e9 struktury by revolucionalizovaly cestov\u00e1n\u00ed do…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[476],"tags":[7900,5579,2569,434,7683],"class_list":["post-4326","post","type-post","status-publish","format-standard","hentry","category-space-science","tag-space-elevators","tag-material-science","tag-nanotechnology","tag-space-exploration","tag-carbon-nanotubes"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=4326"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4326\/revisions"}],"predecessor-version":[{"id":4327,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/4326\/revisions\/4327"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=4326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=4326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=4326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}