{"id":448,"date":"2017-04-11T09:57:00","date_gmt":"2017-04-11T07:57:00","guid":{"rendered":"https:\/\/kids.esa.int\/future_astronauts_could_use_moondust_to_produce_power\/"},"modified":"2026-10-08T00:28:19","modified_gmt":"2026-10-07T22:28:19","slug":"future_astronauts_could_use_moondust_to_produce_power","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/future_astronauts_could_use_moondust_to_produce_power\/","title":{"rendered":"Tulevaisuuden astronautit voisivat k\u00e4ytt\u00e4\u00e4 kuup\u00f6ly\u00e4 energian tuottamiseen"},"content":{"rendered":"<div class=\"lede\">\n<p>Maapallolla el\u00e4ess\u00e4mme meid\u00e4n ei tarvitse koskaan odottaa kovin kauan, ennen kuin n\u00e4emme auringonvaloa. 24 tunnin v\u00e4lein planeettamme py\u00f6rii kerran akselinsa ymp\u00e4ri, jolloin saamme yhden p\u00e4iv\u00e4n ja yhden y\u00f6n. Mutta ent\u00e4 jos olisit Kuussa? Se kiert\u00e4\u00e4 kiertoradallaan eri tavalla. Auringonvaloa voi olla runsaasti 14 p\u00e4iv\u00e4n ajan, mink\u00e4 j\u00e4lkeen seuraa 14 p\u00e4iv\u00e4\u00e4, jolloin on hyvin pime\u00e4\u00e4.<\/p>\n<\/div>\n<p>T\u00e4m\u00e4 on ongelma tuleville kuun tutkijoille, sill\u00e4 he tarvitsevat auringonvaloa aurinkopaneeleille, jotka puolestaan tuottavat kipe\u00e4sti tarvittavaa s\u00e4hk\u00f6\u00e4. Ainakin se on aina ollut suunnitelma\u2026 t\u00e4h\u00e4n asti! ESA:n tutkijat selvitt\u00e4v\u00e4t uutta tapaa k\u00e4ytt\u00e4\u00e4 Kuuta peitt\u00e4v\u00e4\u00e4 kuup\u00f6lykerrosta er\u00e4\u00e4nlaisena akuna. Kuun p\u00e4iv\u00e4ll\u00e4 kuup\u00f6ly imee ja varastoi auringonvalosta saatavaa energiaa. Voisiko energiaa vapauttaa y\u00f6ll\u00e4 ja k\u00e4ytt\u00e4\u00e4 sen avulla s\u00e4hk\u00f6n tuottamiseen?<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Jorge Ma\u00f1es Rubio. Spatial design &amp; visualisation in collaboration with DITISHOE http:\/\/ditishoe.com\/\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/The_Moon_is_covered_with_moondust\" 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\/2017\/04\/the_moon_is_covered_with_moondust\/17895757-2-eng-GB\/The_Moon_is_covered_with_moondust.jpg\" alt=\"The Moon is covered with moondust\"><figcaption>Kuu on peittynyt kuup\u00f6lyll\u00e4<\/figcaption><\/figure>\n<p>Tutkijat uskovat niin. Heid\u00e4n ajatuksensa on k\u00e4ytt\u00e4\u00e4 lukuisia peilej\u00e4 heijastamaan auringonvaloa erityisesti t\u00e4t\u00e4 tarkoitusta varten valmisteltuihin kuup\u00f6lyalueisiin. Sinne sijoitettaisiin niin kutsuttu l\u00e4mp\u00f6moottori. P\u00e4iv\u00e4ll\u00e4 l\u00e4mp\u00f6moottorin ymp\u00e4rill\u00e4 olevan kuup\u00f6lyn l\u00e4mp\u00f6tila voisi nousta yli 100 \u00b0C:een! Osa l\u00e4mm\u00f6st\u00e4 varastoituisi kuup\u00f6lyyn.<\/p>\n<p>Kun y\u00f6 saapuu, kuuma kuup\u00f6ly vapauttaisi energiaansa v\u00e4hitellen, py\u00f6ritt\u00e4en l\u00e4mp\u00f6moottoria \u2013 ja tuottaen s\u00e4hk\u00f6\u00e4 Kuuta tutkiville astronautille!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1761\" data-credit=\"JAXA\/NHK\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/This_photo_shows_what_Earth_looks_like_from_the_Moon\" 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\/2017\/04\/this_photo_shows_what_earth_looks_like_from_the_moon\/17876628-2-eng-GB\/This_photo_shows_what_Earth_looks_like_from_the_Moon.jpg\" alt=\"This photo shows what Earth looks like from the Moon\"><figcaption>T\u00e4ss\u00e4 kuvassa n\u00e4kyy, milt\u00e4 Maa n\u00e4ytt\u00e4\u00e4 Kuusta katsottuna<\/figcaption><\/figure>\n<p>Jos se toimii suunnitellusti, l\u00e4mp\u00f6moottorit olisivat halvempia ja tehokkaampia kuin aurinkopaneelit tai jopa radioaktiiviset l\u00e4mmittimet, jotka ovat toinen nykyisin k\u00e4ytetty energianl\u00e4hde. Seuraavaksi ESA:n tutkijoiden on luotava tietokonesimulaatio l\u00e4mp\u00f6moottorista. Sen j\u00e4lkeen he voivat rakentaa pienen l\u00e4mp\u00f6moottorin prototyypin testattavaksi!<\/p>\n<p>Haluaisitko asua kuubasessa, jonka energial\u00e4hteen\u00e4 toimii kuup\u00f6lyll\u00e4 toimiva l\u00e4mp\u00f6moottori?<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> Y\u00f6ll\u00e4 Kuun pinta j\u00e4\u00e4htyy uskomattoman kylm\u00e4ksi \u2013 joskus jopa alle -170 \u00b0C:een!<\/p>","protected":false},"excerpt":{"rendered":"<p>Living on Earth, we never have to wait very long before seeing sunlight. Every 24 hours our planet spins on its axis once, giving us one day and one night. [&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\/2017\/04\/here_is_an_idea_for_a_future_building_on_the_moon\/17903455-2-eng-GB\/Here_is_an_idea_for_a_future_building_on_the_Moon.jpg","esa_banner_description":"Here is an idea for a future building on the Moon","esa_banner_credit":"Jorge Ma\u00f1es Rubio. Spatial design & visualisation in collaboration with DITISHOE http:\/\/ditishoe.com\/","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/Here_is_an_idea_for_a_future_building_on_the_Moon","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":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-448","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/448","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=448"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/448\/revisions"}],"predecessor-version":[{"id":4484,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/448\/revisions\/4484"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=448"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=448"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=448"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=448"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=448"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=448"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=448"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}