{"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\/ro\/astronauts_get_a_breath_of_fresh_air\/","title":{"rendered":"Astronau\u021bii respir\u0103 aer curat"},"content":{"rendered":"<div class=\"lede\">\n<p>Astronau\u021bii care tr\u0103iesc la bordul Sta\u021biei Spa\u021biale Interna\u021bionale au nevoie de acelea\u0219i lucruri ca \u0219i noi pentru a supravie\u021bui: m\u00e2ncare, ap\u0103 de b\u0103ut \u0219i oxigen pentru a respira. Aceste provizii sunt livrate de pe P\u0103m\u00e2nt cu ajutorul navelor de marf\u0103. Dar imagineaz\u0103-\u021bi c\u0103 e\u0219ti un astronaut pe o nav\u0103 spa\u021bial\u0103 a viitorului, c\u0103l\u0103torind c\u0103tre o planet\u0103 \u00eendep\u0103rtat\u0103. Vei fi prea departe de P\u0103m\u00e2nt pentru a mai primi provizii. Cum vei ob\u021bine ceea ce ai nevoie pentru a supravie\u021bui? Pentru a ajuta la rezolvarea acestei provoc\u0103ri, oamenii de \u0219tiin\u021b\u0103 desf\u0103\u0219oar\u0103 \u00een prezent un experiment de producere a oxigenului pe Sta\u021bia Spa\u021bial\u0103 Interna\u021bional\u0103.<\/p>\n<\/div>\n<figure class=\"wp-block-image size-large\" data-width=\"6480\" data-credit=\"ESA-M. Cowan,\tCC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Cosmic_farming\" data-licence=\"CC BY-SA 3.0 IGO or 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\/03\/cosmic_farming\/17869265-2-eng-GB\/Cosmic_farming.jpg\" alt=\"Cosmic farming\"><figcaption>Agricultura cosmic\u0103<\/figcaption><\/figure>\n<p>\u0218tia\u021bi c\u0103, atunci c\u00e2nd oamenii respir\u0103, inspir\u0103 oxigen \u0219i expir\u0103 dioxid de carbon? Plantele fac exact invers: transform\u00e2nd lumina \u00een energie (un proces numit fotosintez\u0103), ele absorb dioxid de carbon \u0219i elibereaz\u0103 oxigen. A\u0219adar, prezen\u021ba plantelor \u00een spa\u021biu ar putea fi o modalitate excelent\u0103 de a recicla aerul pentru astronau\u021bi. Experimentul oamenilor de \u0219tiin\u021b\u0103 are ca scop s\u0103 descopere dac\u0103 fotosinteza func\u021bioneaz\u0103 \u00een condi\u021biile de imponderabilitate din spa\u021biu la fel ca pe P\u0103m\u00e2nt.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"5312\" data-credit=\"SCK-CEN\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/03\/Spirulina\" 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\/03\/spirulina\/17885027-2-eng-GB\/Spirulina.jpg\" alt=\"Spirulina\"><figcaption>Spirulina<\/figcaption><\/figure>\n<p>Un tip special de bacterie numit\u0103 Arthrospira, care realizeaz\u0103 fotosinteza la fel ca o plant\u0103, a fost dus\u0103 la laboratorul Columbus al ESA de pe Sta\u021bia Spa\u021bial\u0103 Interna\u021bional\u0103. Apoi a fost introdus\u0103 \u00eentr-un dispozitiv numit fotobioreactor, care este un cilindru cu mult\u0103 lumin\u0103. Arthrospira absoarbe dioxidul de carbon expirat de astronau\u021bi \u0219i \u00eel transform\u0103 \u00een oxigen. \u00cen plus, Arthrospira poate fi transformat\u0103 cu u\u0219urin\u021b\u0103 \u00eentr-un produs numit spirulin\u0103, care este foarte nutritiv \u0219i poate fi consumat de astronau\u021bi!<\/p>\n<p>Marea \u00eentrebare care se pune acum este dac\u0103 prezen\u021ba \u00een spa\u021biu modific\u0103 eficien\u021ba cu care plantele produc oxigen. Lipsa gravita\u021biei le ajut\u0103 s\u0103 fie mai eficiente sau provoac\u0103 efecte secundare ciudate? Radia\u021biile din spa\u021biu ajut\u0103 sau d\u0103uneaz\u0103 acestui proces? \u00cen cur\u00e2nd vom afla r\u0103spunsul.<\/p>\n<p>Poate c\u0103, \u00een viitor, vei fi un astronaut care va c\u0103l\u0103tori c\u0103tre o alt\u0103 lume, respir\u00e2nd aer reciclat de plante!<\/p>\n<p><b>Un fapt interesant:<\/b> Oamenii de \u0219tiin\u021b\u0103 sper\u0103 s\u0103 construiasc\u0103 aparate care s\u0103 recicleze urina astronau\u021bilor, transform\u00e2nd-o \u00een ap\u0103 pe care ace\u0219tia s\u0103 o poat\u0103 bea!<\/p>","protected":false},"excerpt":{"rendered":"<p>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 [&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\/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\/ro\/wp-json\/wp\/v2\/posts\/410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=410"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/410\/revisions"}],"predecessor-version":[{"id":4452,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/410\/revisions\/4452"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=410"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=410"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=410"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=410"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=410"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=410"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=410"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}