{"id":410,"date":"2018-03-20T13:49:00","date_gmt":"2018-03-20T12:49:00","guid":{"rendered":"https:\/\/kids.esa.int\/astronauts_get_a_breath_of_fresh_air\/"},"modified":"2026-10-08T00:27:51","modified_gmt":"2026-10-07T22:27:51","slug":"astronauts_get_a_breath_of_fresh_air","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/astronauts_get_a_breath_of_fresh_air\/","title":{"rendered":"Astronavti si privo\u0161\u010dijo vdih sve\u017eega zraka"},"content":{"rendered":"
\n

Astronavti, ki \u017eivijo na Mednarodni vesoljski postaji, za pre\u017eivetje potrebujejo enake stvari kot mi: hrano za jesti, vodo za pitje in kisik za dihanje. Te zaloge se dostavljajo z Zemlje s tovornimi ladjami. A si predstavljaj, da si astronavt na vesoljski ladji prihodnosti, ki potuje na oddaljen planet. Od Zemlje boste preve\u010d oddaljeni, da bi lahko prejemali kakr\u0161no koli oskrbo. Kako boste dobili tisto, kar potrebujete za pre\u017eivetje? Da bi pomagali re\u0161iti ta izziv, znanstveniki trenutno izvajajo poskus za pridobivanje kisika na Mednarodni vesoljski postaji.<\/p>\n<\/div>\n

\"Cosmic
Kozmi\u010dno kmetijstvo<\/figcaption><\/figure>\n

Ali ste vedeli, da ljudje pri dihanju vdihujemo kisik in izdihujemo ogljikov dioksid? Rastline delujejo ravno nasprotno: s pretvorbo svetlobe v energijo (proces, imenovan fotosinteza) sprejemajo ogljikov dioksid in oddajajo kisik. Zato bi lahko bile rastline v vesolju odli\u010den na\u010din za recikliranje zraka za astronavte. Namen znanstvenikov je ugotoviti, ali fotosinteza v brezte\u017enostnih razmerah v vesolju deluje enako kot na Zemlji.<\/p>\n

\"Spirulina\"
Spirulina<\/figcaption><\/figure>\n

Posebna vrsta bakterij, imenovana Arthrospira, ki opravlja fotosintezo kot rastlina, je bila odpeljana v laboratorij Columbus agencije ESA na Mednarodni vesoljski postaji. Nato so jo namestili v napravo, imenovano fotobioreaktor, ki je valj z veliko svetlobe. Arthrospira sprejema ogljikov dioksid, ki ga izdihujejo astronavti, in ga pretvarja v kisik. Dodatna prednost je, da se Arthrospira zlahka pretvori v tako imenovano spirulino, ki je zelo hranljiva in jo lahko jedo astronavti!<\/p>\n

Glavno vpra\u0161anje je zdaj, ali bivanje v vesolju vpliva na u\u010dinkovitost rastlin pri proizvodnji kisika. Ali jim brezte\u017enost pomaga, da so u\u010dinkovitej\u0161e, ali pa povzro\u010da nenavadne stranske u\u010dinke? Ali sevanje iz vesolja temu procesu pomaga ali \u0161koduje? Odgovor bomo kmalu izvedeli.<\/p>\n

Morda bo\u0161 v prihodnosti astronavt, ki bo potoval v drug svet in dihal zrak, ki ga bodo predelale rastline!<\/p>\n

Zanimiv podatek:<\/b> Znanstveniki upajo, da bodo izdelali naprave, ki bodo iz astronavtovega urina pridobivale vodo, ki jo bodo ti lahko nato pili!<\/p>","protected":false},"excerpt":{"rendered":"

Astronauts living on-board the International Space Station need the same things that we do to survive: food to eat, water to drink, and oxygen to breathe. These supplies are delivered […]<\/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\/03\/arthrospira_microalgae\/17879736-2-eng-GB\/Arthrospira_microalgae.jpg","esa_banner_description":"Arthrospira microalgae","esa_banner_credit":"SCK-CEN","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Arthrospira_microalgae","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-410","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\/410","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=410"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/410\/revisions"}],"predecessor-version":[{"id":4452,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/410\/revisions\/4452"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=410"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=410"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=410"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=410"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=410"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=410"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=410"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}