{"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\/sl\/zero-g_aeroplane_helps_scientists_to_experiment_with_gravity\/","title":{"rendered":"Letalo z ni\u010delno te\u017eo pomaga znanstvenikom pri eksperimentiranju z gravitacijo!"},"content":{"rendered":"<div class=\"lede\">\n<p>Mednarodna vesoljska postaja je fantasti\u010den laboratorij v vesolju. Znanstveniki v njej izvajajo poskuse v brezte\u017enostnih razmerah, kar vodi do najrazli\u010dnej\u0161ih novih prebojev! Kaj pa, \u010de za va\u0161 poskus potrebujete le delno, ne pa popolno brezte\u017enost? ESA, Nem\u0161ki center za letalstvo in vesolje (DLR) ter Francoska vesoljska agencija (CNES) so zdru\u017eili mo\u010di, da bi to omogo\u010dili!<\/p>\n<\/div>\n<p>Namesto da bi odpotovali v vesolje, so uporabili zelo posebno letalo, imenovano A310 Zero-G. Ko je letalo v zraku, pilot letala Zero-G izvede zahteven manever. Letalo strmo dvigne nos, nato pa zmanj\u0161a potisk. Zaradi tega letalo Zero-G v zraku opi\u0161e velik lok, kot da bi ga izstrelila katapulta! Ko letalo dose\u017ee vrh loka, so vsi ljudje in oprema na krovu pribli\u017eno 20 sekund v prostem padu, kar je enako stanju brezte\u017enosti. Nato letalo pada navzdol in se vrne vpliv gravitacije. Kmalu zatem mora pilot zavihteti letalo navzgor, da ga obdr\u017ei v zraku, in postopek se lahko ponovi!<\/p>\n<p>Da bi dosegel u\u010dinek \u010detrtine, polovice in treh \u010detrtin gravitacije, je pilot spremenil kot letenja letala Zero-G navzgor, zaradi \u010desar je letalo v zraku opisalo druga\u010den lok. Te tehnike \u0161e nih\u010de ni preizkusil, a je delovala res odli\u010dno!<\/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>Gravitacija za izgubo<\/figcaption><\/figure>\n<p>Tri vesoljske agencije so med tem posebnim poletom sodelovale pri razli\u010dnih poskusih. Eden od poskusov je preu\u010deval vpliv delne gravitacije na delovanje na\u0161ih mo\u017eganov. Prej\u0161nji poskusi so pokazali, da kratki izbruhi brezte\u017enosti pove\u010dajo pretok krvi v mo\u017egane, kar pripomore k bolj\u0161emu delovanju mo\u017eganov. Vendar pa ima dolgotrajna brezte\u017enost negativne stranske u\u010dinke na na\u0161e mo\u017egane. Ali bi morda obstajal dober kompromis z zmanj\u0161ano gravitacijo? Prav to so preu\u010devali nekateri znanstveniki na krovu.<\/p>\n<p>\u0160e en poskus je bil posve\u010den koreninam rastlin in temu, kako se odzivajo na pogoje delne gravitacije. Iz poskusov na Mednarodni vesoljski postaji vemo, da se rastline lahko presenetljivo hitro prilagodijo, vendar potrebujemo ve\u010d podatkov, da bi v celoti razumeli, kako se rastline spreminjajo.<\/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 v brezte\u017enosti<\/figcaption><\/figure>\n<p>Tak\u0161ni poskusi so zelo pomembni za na\u010drtovanje po\u0161iljanja astronavtov na Luno in celo na Mars. Ali lahko ljudje dolgo \u010dasa \u017eivijo in delajo v popolnoma brezte\u017enih razmerah, ali pa je za ohranjanje zdravja potrebna vsaj nekaj gravitacije? Gojenje rastlin v vesolju in na drugih planetih bo klju\u010dnega pomena za na\u0161e pre\u017eivetje, zato moramo vedeti tudi, kako se odzivajo na razli\u010dne stopnje gravitacije!<\/p>\n<p>Predstavljaj si, da si znanstvenik, ki leti z letalom Zero-G. Ali se ti morda poraja kak\u0161en poskus, ki bi ga rad izvedel? Bi to v prihodnosti pomagalo astronavtom pri raziskovanju novih svetov?<\/p>\n<p><b>Zanimiv podatek:<\/b> Letalo Zero-G lahko vsake tri minute opravi strm spust za ustvarjanje zmanj\u0161ane gravitacije, skupaj 31-krat na let. To je kot ekstremna vo\u017enja z vlakcem smrti na nebu, vendar v znanstvene namene!<\/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\/sl\/wp-json\/wp\/v2\/posts\/378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=378"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/378\/revisions"}],"predecessor-version":[{"id":4425,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/378\/revisions\/4425"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=378"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=378"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=378"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=378"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=378"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=378"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=378"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}