{"id":47,"date":"2025-07-11T08:31:12","date_gmt":"2025-07-11T06:31:12","guid":{"rendered":"https:\/\/kids.esa.int\/the_closed_loop_system_-_recycling_air_and_water\/"},"modified":"2026-10-08T00:23:30","modified_gmt":"2026-10-07T22:23:30","slug":"the_closed_loop_system_-_recycling_air_and_water","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/the_closed_loop_system_-_recycling_air_and_water\/","title":{"rendered":"Suljettu kierr\u00e4tysj\u00e4rjestelm\u00e4 \u2013 ilman ja veden kierr\u00e4tys"},"content":{"rendered":"<p>Oletko koskaan miettinyt, miten maapallolla on kaikki, mit\u00e4 tarvitsemme el\u00e4\u00e4ksemme? Yksi esimerkki on se, ett\u00e4 kun me hengit\u00e4mme hiilidioksidia ulos, kasvit ja meren levien kaltaiset pieneli\u00f6t imev\u00e4t sen ja muuttavat sen takaisin hapeksi, jota voimme taas hengitt\u00e4\u00e4. Mutta miten astronautit kierr\u00e4tt\u00e4v\u00e4t ilmaa ja vett\u00e4 Kansainv\u00e4lisell\u00e4 avaruusasemalla (ISS)?<\/p>\n<p>Kansainv\u00e4lisell\u00e4 avaruusasemalla Paxi ihmettelee, miksi siell\u00e4 tuntuu niin turvalliselta ja mukavalta. Onneksi NASA:n astronautti Stephen Bowen on paikalla selitt\u00e4m\u00e4\u00e4n Paxille \u201csuljetun kierron j\u00e4rjestelm\u00e4\u00e4\u201d, jonka ansiosta astronautit voivat viett\u00e4\u00e4 avaruudessa pidemp\u00e4\u00e4n ja jopa s\u00e4\u00e4st\u00e4\u00e4 rahaa!<\/p>\n<p>Pitk\u00e4\u00e4n astronautit saivat happea vedest\u00e4 (joka koostuu vedyst\u00e4 ja hapesta), jota l\u00e4hetettiin Maasta. Mutta nyt \u201csuljetun kierron j\u00e4rjestelm\u00e4n\u201d ansiosta he voivat s\u00e4\u00e4st\u00e4\u00e4 vuosittain niin paljon vett\u00e4, ett\u00e4 sill\u00e4 voisi t\u00e4ytt\u00e4\u00e4 suuren kylpyammeen \u2013 ja se on todella paljon vett\u00e4!<\/p>\n<p>L\u00e4hde Paxin ja Stephenin mukaan tutkimaan, miten astronautit el\u00e4v\u00e4t ja hengitt\u00e4v\u00e4t kansainv\u00e4lisell\u00e4 avaruusasemalla (ISS)!\u00a0<\/p>\n<figure class=\"wp-block-embed is-type-video\"><iframe width=\"728\" height=\"410\" src=\"https:\/\/www.youtube.com\/embed\/tmqQMUB9mdI?si=aeMmc0dZTZ-I6L4g\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/figure>","protected":false},"excerpt":{"rendered":"<p>Have you ever thought about how the Earth has everything we need to live? One example is how we breathe out carbon dioxide but\u00a0plants and tiny things like algae in [&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\/2025\/07\/gif_-_paxi_on_the_iss_-_closed_loop_system\/26793150-2-eng-GB\/GIF_-_Paxi_on_the_ISS_-_Closed_Loop_System1.gif","esa_banner_description":"GIF - Paxi on the ISS - Closed Loop System","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2025\/07\/GIF_-_Paxi_on_the_ISS_-_Closed_Loop_System","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":[15,18,17],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-multimedia","category-paxi-on-the-iss","category-videos"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=47"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":1190,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/47\/revisions\/1190"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=47"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=47"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=47"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=47"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=47"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=47"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=47"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}