{"id":832,"date":"2004-12-02T15:30:00","date_gmt":"2004-12-02T14:30:00","guid":{"rendered":"https:\/\/kids.esa.int\/many_parts\/"},"modified":"2026-10-08T00:32:47","modified_gmt":"2026-10-07T22:32:47","slug":"many_parts","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/many_parts\/","title":{"rendered":"Mange dele"},"content":{"rendered":"
\n

En bil uden hjul eller motor har kun ringe v\u00e6rdi. P\u00e5 samme m\u00e5de er der visse dele, der skal indbygges i en satellit.<\/p>\n<\/div>\n

De fleste rumfart\u00f8jer er afh\u00e6ngige af batterier og solceller som str\u00f8mkilde. Solceller er skiveformede stykker af silicium eller andre materialer, der producerer elektricitet, n\u00e5r sollys rammer dem.<\/p>\n

Hvis tusindvis af disse celler samles i store moduler til solcellepaneler, kan de forsyne et ret stort rumfart\u00f8j med str\u00f8m. Cellerne oplader desuden batterierne, n\u00e5r de uds\u00e6ttes for sollys. N\u00e5r rumfart\u00f8jet kommer i skygge, overtager batterierne str\u00f8mforsyningen.<\/p>\n

Rumfart\u00f8jer er udstyret med flere antenner. Disse fungerer som \u00f8rer og sikrer kommunikationsforbindelsen til Jorden. Den vigtigste af disse er en parabol med en diameter p\u00e5 op til 2 m, der kan sende og modtage store m\u00e6ngder data og information.<\/p>\n

Rumfart\u00f8jets hjerne er dets computersystem. Data kan gemmes i computerens hukommelse eller sendes tilbage til Jorden i realtid via antennerne.<\/p>\n

Computeren gemmer ogs\u00e5 instruktioner om, hvordan rumfart\u00f8jet skal betjenes. Dette fungerer som en sikkerhedsforanstaltning, hvis kontakten g\u00e5r tabt, eller der opst\u00e5r en fejl.<\/p>\n

Rumfart\u00f8jer har ogs\u00e5 brug for sm\u00e5 motorer til at navigere i rummet. Der findes forskellige typer motorer.<\/p>\n

Rumfart\u00f8jer drejer og ruller ved at affyre raketmotorer. Disse sender varme gasser ud i rummet med h\u00f8j hastighed. Nogle satellitter har ionmotorer. Disse bruger et st\u00e6rkt elektrisk felt til at drive gassen ud i rummet.<\/p>","protected":false},"excerpt":{"rendered":"

A car without wheels or an engine is of little value. In the same way, there are certain parts that must be built into a satellite. Most spacecraft depend on […]<\/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\/2001\/01\/iss2\/17866379-3-eng-GB\/ISS.jpg","esa_banner_description":"ISS","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/01\/ISS2","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":[10,44,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-832","post","type-post","status-publish","format-standard","hentry","category-learn","category-spacecraft","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/832","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=832"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/832\/revisions"}],"predecessor-version":[{"id":1975,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/832\/revisions\/1975"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=832"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=832"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=832"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=832"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=832"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=832"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=832"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}