{"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\/sv\/many_parts\/","title":{"rendered":"M\u00e5nga delar"},"content":{"rendered":"
\n

En bil utan hjul eller motor \u00e4r inte mycket v\u00e4rd. P\u00e5 samma s\u00e4tt finns det vissa delar som m\u00e5ste ing\u00e5 i en satellit.<\/p>\n<\/div>\n

De flesta rymdfarkoster \u00e4r beroende av batterier och solceller f\u00f6r sin str\u00f6mf\u00f6rs\u00f6rjning. Solceller \u00e4r skivliknande bitar av kisel eller andra material som alstrar elektricitet n\u00e4r solljus tr\u00e4ffar dem.<\/p>\n

Om tusentals av dessa celler kopplas samman i stora paneler f\u00f6r att bilda solpaneler kan de f\u00f6rse ett stort rymdfarkost med energi. Cellerna laddar dessutom batterierna s\u00e5 fort de uts\u00e4tts f\u00f6r solljus. N\u00e4r rymdfarkosten hamnar i skugga tar batterierna \u00f6ver.<\/p>\n

Rymdfarkosterna \u00e4r utrustade med flera antenner. Dessa fungerar som \u00f6ron och m\u00f6jligg\u00f6r kommunikation med jorden. Den viktigaste av dessa \u00e4r en parabol med en diameter p\u00e5 upp till 2 m som kan s\u00e4nda och ta emot stora m\u00e4ngder data och information.<\/p>\n

Rymdfarkostens hj\u00e4rna \u00e4r dess datorsystem. Data kan lagras i datorns minne eller skickas tillbaka till jorden i realtid via antennerna.<\/p>\n

Datorn lagrar \u00e4ven instruktioner om hur rymdfarkosten ska man\u00f6vreras. Detta fungerar som en reservl\u00f6sning om kontakten bryts eller om ett tekniskt fel uppst\u00e5r.<\/p>\n

Rymdfarkoster beh\u00f6ver ocks\u00e5 sm\u00e5 motorer f\u00f6r att kunna navigera i rymden. Det finns olika typer av motorer.<\/p>\n

Rymdfarkoster sv\u00e4nger och rullar genom att avfyra raketmotorer. Dessa slungar ut heta gaser ut i rymden med h\u00f6g hastighet. Vissa satelliter har jonmotorer. Dessa anv\u00e4nder ett starkt elektriskt f\u00e4lt f\u00f6r att driva ut gas ut i rymden.<\/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\/sv\/wp-json\/wp\/v2\/posts\/832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=832"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/832\/revisions"}],"predecessor-version":[{"id":1975,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/832\/revisions\/1975"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=832"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=832"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=832"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=832"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=832"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=832"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=832"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}