{"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\/da\/future_astronauts_could_use_moondust_to_produce_power\/","title":{"rendered":"Fremtidige astronauter kunne bruge m\u00e5nest\u00f8v til at producere str\u00f8m"},"content":{"rendered":"<div class=\"lede\">\n<p>N\u00e5r vi bor p\u00e5 Jorden, beh\u00f8ver vi aldrig at vente s\u00e6rlig l\u00e6nge, f\u00f8r vi ser sollys. Hver 24. time drejer vores planet \u00e9n gang om sin egen akse, hvilket giver os \u00e9n dag og \u00e9n nat. Men hvad nu, hvis man befandt sig p\u00e5 M\u00e5nen? Den kredser p\u00e5 en anden m\u00e5de. Der kan v\u00e6re masser af sollys i 14 dage, efterfulgt af 14 dage, hvor det er meget m\u00f8rkt.<\/p>\n<\/div>\n<p>Dette udg\u00f8r et problem for fremtidige menneskelige m\u00e5neudforskere, da de har brug for sollys til at belyse solcellepaneler, der igen producerer den s\u00e5 n\u00f8dvendige elektricitet. I hvert fald har det altid v\u00e6ret planen\u2026 indtil nu! ESA-forskere unders\u00f8ger en ny m\u00e5de at udnytte det lag af m\u00e5nest\u00f8v, der d\u00e6kker M\u00e5nen, som en slags batteri. Om dagen p\u00e5 M\u00e5nen absorberer og lagrer m\u00e5nest\u00f8vet energi fra sollyset. Kunne energien frigives om natten og bruges til at producere elektricitet?<\/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>M\u00e5nen er d\u00e6kket af m\u00e5nest\u00f8v<\/figcaption><\/figure>\n<p>Det mener forskerne. Deres id\u00e9 g\u00e5r ud p\u00e5 at bruge mange spejle til at reflektere sollys ned p\u00e5 specielt forberedte omr\u00e5der med m\u00e5nest\u00f8v. Der vil blive placeret en anordning, der kaldes en varmemotor. Om dagen kan temperaturen i m\u00e5nest\u00f8vet omkring varmemotoren n\u00e5 op p\u00e5 over 100 \u00b0C! En del af varmen vil blive lagret i m\u00e5nest\u00f8vet.<\/p>\n<p>N\u00e5r natten falder p\u00e5, vil det varme m\u00e5nest\u00f8v gradvist afgive sin energi, som vil drive varmemotoren \u2013 og levere elektricitet til astronauterne, der udforsker M\u00e5nen!<\/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>Dette billede viser, hvordan Jorden ser ud set fra M\u00e5nen<\/figcaption><\/figure>\n<p>Hvis det fungerer som planlagt, vil varmemotorer v\u00e6re billigere og mere effektive end solceller eller endda radioaktive varmeapparater, som er en anden metode, der i dag anvendes til at levere energi. Det n\u00e6ste skridt er, at ESA-forskerne skal udarbejde en computersimulation af en varmemotor. Derefter kan de bygge en lille prototype af en varmemotor, som de kan teste!<\/p>\n<p>Ville du gerne bo p\u00e5 en m\u00e5nebase, der drives af en varmemotor baseret p\u00e5 m\u00e5nest\u00f8v?<\/p>\n<p><b>Sjovt faktum:<\/b> Om natten bliver M\u00e5nens overflade utroligt kold \u2013 nogle gange ned til under -170 \u00b0C!<\/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. 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