{"id":378,"date":"2018-06-19T15:02:00","date_gmt":"2018-06-19T13:02:00","guid":{"rendered":"https:\/\/kids.esa.int\/zero-g_aeroplane_helps_scientists_to_experiment_with_gravity\/"},"modified":"2026-10-08T00:27:29","modified_gmt":"2026-10-07T22:27:29","slug":"zero-g_aeroplane_helps_scientists_to_experiment_with_gravity","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/zero-g_aeroplane_helps_scientists_to_experiment_with_gravity\/","title":{"rendered":"Letadlo s nulovou gravitac\u00ed pom\u00e1h\u00e1 v\u011bdc\u016fm prov\u00e1d\u011bt experimenty s gravitac\u00ed!"},"content":{"rendered":"<div class=\"lede\">\n<p>Mezin\u00e1rodn\u00ed vesm\u00edrn\u00e1 stanice je \u00fa\u017easn\u00e1 laborato\u0159 ve vesm\u00edru. V\u011bdci zde prov\u00e1d\u011bj\u00ed experimenty ve stavu bezt\u00ed\u017ee, co\u017e vede k nejr\u016fzn\u011bj\u0161\u00edm nov\u00fdm objev\u016fm! Co ale d\u011blat, kdy\u017e v\u00e1\u0161 experiment vy\u017eaduje \u010d\u00e1ste\u010dnou, nikoli \u00faplnou bezt\u00ed\u017enost? ESA, N\u011bmeck\u00e9 centrum pro letectv\u00ed a kosmonautiku (DLR) a Francouzsk\u00e1 kosmick\u00e1 agentura (CNES) spojily s\u00edly, aby to umo\u017enily!<\/p>\n<\/div>\n<p>M\u00edsto toho, aby odlet\u011bli do vesm\u00edru, pou\u017eili velmi speci\u00e1ln\u00ed letadlo zvan\u00e9 A310 Zero-G. Ve vzduchu provede pilot letadla Zero-G n\u00e1ro\u010dn\u00fd man\u00e9vr. Prudce stoupne a pot\u00e9 sn\u00ed\u017e\u00ed tah motor\u016f. D\u00edky tomu letadlo Zero-G opisuje ve vzduchu velk\u00fd oblouk, jako by bylo vyst\u0159eleno z katapultu! V okam\u017eiku, kdy letadlo dos\u00e1hne vrcholu oblouku, se v\u0161ichni lid\u00e9 i vybaven\u00ed na palub\u011b ocitnou ve voln\u00e9m p\u00e1du, co\u017e je tot\u00e9\u017e jako stav bezt\u00ed\u017ee, a to po dobu asi 20 sekund. Pot\u00e9 letadlo kles\u00e1 dol\u016f a gravitace op\u011bt za\u010dne p\u016fsobit. Zanedlouho mus\u00ed pilot letadlo op\u011bt vyt\u00e1hnout nahoru, aby ho udr\u017eel ve vzduchu, a cel\u00fd proces m\u016f\u017ee za\u010d\u00edt znovu!<\/p>\n<p>Aby dos\u00e1hl efektu \u010dtvrtinov\u00e9, polovi\u010dn\u00ed a t\u0159\u00ed\u010dtvrtinov\u00e9 gravitace, pilot zm\u011bnil \u00fahel letu letounu Zero-G p\u0159i stoup\u00e1n\u00ed, co\u017e vedlo k tomu, \u017ee letoun ve vzduchu opisoval odli\u0161n\u00fd oblouk. Tato technika je\u0161t\u011b nikdy nebyla vyzkou\u0161ena, ale fungovala opravdu skv\u011ble!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2850\" data-credit=\"Novespace\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Gravity_for_the_loss2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/gravity_for_the_loss2\/17881179-2-eng-GB\/Gravity_for_the_loss.jpg\" alt=\"Gravity for the loss\"><figcaption>Gravitace za ztr\u00e1tu<\/figcaption><\/figure>\n<p>B\u011bhem tohoto mimo\u0159\u00e1dn\u00e9ho letu spolupracovaly t\u0159i vesm\u00edrn\u00e9 agentury na r\u016fzn\u00fdch experimentech. Jeden z experiment\u016f zkoumal vliv \u010d\u00e1ste\u010dn\u00e9 gravitace na fungov\u00e1n\u00ed na\u0161eho mozku. D\u0159\u00edv\u011bj\u0161\u00ed experimenty uk\u00e1zaly, \u017ee kr\u00e1tk\u00e9 obdob\u00ed bezt\u00ed\u017ee zvy\u0161uje pr\u016ftok krve do mozku, co\u017e p\u0159isp\u00edv\u00e1 k jeho lep\u0161\u00edmu fungov\u00e1n\u00ed. Dlouhodob\u00fd pobyt ve stavu bezt\u00ed\u017ee m\u00e1 v\u0161ak na n\u00e1\u0161 mozek negativn\u00ed vedlej\u0161\u00ed \u00fa\u010dinky. Mohlo by existovat n\u011bjak\u00e9 vhodn\u00e9 kompromisn\u00ed \u0159e\u0161en\u00ed v podob\u011b sn\u00ed\u017een\u00e9 gravitace? Pr\u00e1v\u011b to zkoumali n\u011bkte\u0159\u00ed v\u011bdci na palub\u011b.<\/p>\n<p>Dal\u0161\u00ed experiment se t\u00fdkal ko\u0159en\u016f rostlin a toho, jak reaguj\u00ed na podm\u00ednky \u010d\u00e1ste\u010dn\u00e9 gravitace. Z experiment\u016f proveden\u00fdch na palub\u011b Mezin\u00e1rodn\u00ed vesm\u00edrn\u00e9 stanice v\u00edme, \u017ee se rostliny dok\u00e1\u017eou p\u0159izp\u016fsobit p\u0159ekvapiv\u011b rychle, ale pot\u0159ebujeme v\u00edce informac\u00ed, abychom pln\u011b pochopili, jak se rostliny m\u011bn\u00ed.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3012\" data-credit=\"ESA - A. Gerst\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Alexander_Gerst_in_weightlessness\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/alexander_gerst_in_weightlessness\/17889652-2-eng-GB\/Alexander_Gerst_in_weightlessness.jpg\" alt=\"Alexander Gerst in weightlessness\"><figcaption>Alexander Gerst ve stavu bezt\u00ed\u017ee<\/figcaption><\/figure>\n<p>Experimenty tohoto druhu jsou velmi d\u016fle\u017eit\u00e9 pro pl\u00e1nov\u00e1n\u00ed vysl\u00e1n\u00ed lidsk\u00fdch astronaut\u016f na M\u011bs\u00edc a dokonce i na Mars. Mohou lid\u00e9 dlouhodob\u011b \u017e\u00edt a pracovat v podm\u00ednk\u00e1ch \u00fapln\u00e9 bezt\u00ed\u017enosti, nebo je pro udr\u017een\u00ed na\u0161eho zdrav\u00ed zapot\u0159eb\u00ed ur\u010dit\u00e1 gravitace? P\u011bstov\u00e1n\u00ed rostlin ve vesm\u00edru a na jin\u00fdch planet\u00e1ch bude pro na\u0161e p\u0159e\u017eit\u00ed z\u00e1sadn\u00ed, proto mus\u00edme v\u011bd\u011bt, jak reaguj\u00ed na r\u016fzn\u00e9 \u00farovn\u011b gravitace!<\/p>\n<p>P\u0159edstavte si, \u017ee jste v\u011bdec let\u00edc\u00ed v letadle Zero-G. Napad\u00e1 v\u00e1s n\u011bjak\u00fd experiment, kter\u00fd byste r\u00e1di provedli? Pomohlo by to astronaut\u016fm v budoucnu prozkoum\u00e1vat nov\u00e9 sv\u011bty?<\/p>\n<p><b>Zaj\u00edmavost:<\/b> Letadlo Zero-G m\u016f\u017ee ka\u017ed\u00e9 t\u0159i minuty prov\u00e1d\u011bt st\u0159emhlav\u00fd let za \u00fa\u010delem vytvo\u0159en\u00ed stavu sn\u00ed\u017een\u00e9 gravitace, a to celkem 31kr\u00e1t za let. Je to jako extr\u00e9mn\u00ed horsk\u00e1 dr\u00e1ha na obloze, ale slou\u017e\u00ed to v\u011bd\u011b!<\/p>","protected":false},"excerpt":{"rendered":"<p>The International Space Station is a fantastic laboratory in space. Scientists conduct experiments in weightless conditions, leading to all kinds of new breakthroughs! But what if your experiment needs to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/06\/zero-g_takeoff\/17901050-2-eng-GB\/Zero-G_takeoff.jpg","esa_banner_description":"Zero-G takeoff","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Zero-G_takeoff","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-378","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=378"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/378\/revisions"}],"predecessor-version":[{"id":4425,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/378\/revisions\/4425"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=378"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=378"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=378"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=378"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=378"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=378"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=378"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}