{"id":1047,"date":"2010-06-30T07:54:00","date_gmt":"2010-06-30T05:54:00","guid":{"rendered":"https:\/\/kids.esa.int\/weightless_experiments_help_industries_on_earth\/"},"modified":"2026-10-08T00:35:16","modified_gmt":"2026-10-07T22:35:16","slug":"weightless_experiments_help_industries_on_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/weightless_experiments_help_industries_on_earth\/","title":{"rendered":"Eksperimenter i v\u00e6gtl\u00f8shed hj\u00e6lper industrier p\u00e5 Jorden"},"content":{"rendered":"<div class=\"lede\">\n<p>Et typisk ophold ombord p\u00e5 Den Internationale Rumstation (ISS) varer omkring seks m\u00e5neder. Men hvordan fordriver bes\u00e6tningsmedlemmerne tiden, mens de er deroppe? En stor del af deres daglige aktiviteter g\u00e5r med at gennemf\u00f8re eksperimenter, der kan have praktiske anvendelser her p\u00e5 Jorden.<\/p>\n<\/div>\n<p>ISS er det st\u00f8rste og mest avancerede laboratorium, der nogensinde er sendt ud i rummet. Ved hj\u00e6lp af de specialudstyrede moduler, s\u00e5som ESA\u2019s Columbus-laboratorium, kan forskerne unders\u00f8ge en lang r\u00e6kke emner i et helt s\u00e6rligt milj\u00f8, hvor alt er v\u00e6gtl\u00f8st. Her p\u00e5 Jorden har tyngdekraften stor indflydelse p\u00e5 alt, hvad vi g\u00f8r, men der sker nogle meget m\u00e6rkelige ting, n\u00e5r tyngdekraftens virkninger forsvinder.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"200\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/11\/A_flame_in_microgravity2\" 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\/2007\/11\/a_flame_in_microgravity2\/17893018-2-eng-GB\/A_flame_in_microgravity.jpg\" alt=\"A flame in microgravity\"><figcaption>En flamme i mikrogravitation<\/figcaption><\/figure>\n<p>Vi er vant til at se en stearinlysflamme, der er tilspidset. Den spidse flamme dannes, n\u00e5r de varme gasser stiger op, fordi de er lettere end den k\u00f8lige luft, der omgiver dem. Denne k\u00f8lige luft suges ind ved bunden af stearinlysets v\u00e6ge og tilf\u00f8rer ilt, s\u00e5 stearinet kan forts\u00e6tte med at br\u00e6nde. Men i v\u00e6gtl\u00f8shed er den varme gas ikke lettere end den k\u00f8lige luft, s\u00e5 den stiger ikke op. Resultatet er en lille, n\u00e6sten usynlig, rund flamme. Den egentlige forbr\u00e6nding finder kun sted p\u00e5 flammens overflade, hvor br\u00e6ndstof fra stearinlyset kan blandes med ilten i luften udenfor.<\/p>\n<p>Forskere kan l\u00e6re meget ved at unders\u00f8ge, hvordan ting br\u00e6nder i v\u00e6gtl\u00f8shed. Denne viden kan derefter blandt andet bruges til at udvikle bil- eller flymotorer, der bruger mindre br\u00e6ndstof og forurener mindre.<\/p>\n<p>Et andet interessant forskningsomr\u00e5de drejer sig om blanding af v\u00e6sker. Mange af de metaller, vi bruger i dagligdagen, er legeringer \u2013 blandinger af to eller flere metaller. Legeringer fremstilles ved at smelte metallerne, s\u00e5 de blandes sammen. P\u00e5 Jorden har tyngdekraften stor indflydelse p\u00e5, hvordan de forskellige flydende metaller blandes, men blandingen foreg\u00e5r meget lettere i rummet. Eksperimenter under v\u00e6gtl\u00f8se forhold l\u00e6rer os meget om denne proces, s\u00e5 der kan fremstilles bedre legeringer her p\u00e5 Jorden.<\/p>","protected":false},"excerpt":{"rendered":"<p>A typical stay on board the International Space Station (ISS) lasts about six months. But how do the crew members occupy their time while they are up there? Quite a [&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\/2009\/10\/de_winne_with_the_foam_stability_experiment2\/17897422-2-eng-GB\/De_Winne_with_the_Foam_Stability_experiment.jpg","esa_banner_description":"","esa_banner_credit":"NASA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/10\/De_Winne_with_the_Foam_Stability_experiment2","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":[10,13,63],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1047","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=1047"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1047\/revisions"}],"predecessor-version":[{"id":4816,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1047\/revisions\/4816"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=1047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=1047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=1047"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=1047"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=1047"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=1047"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=1047"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=1047"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=1047"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=1047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}