{"id":745,"date":"2004-12-09T14:59:00","date_gmt":"2004-12-09T13:59:00","guid":{"rendered":"https:\/\/kids.esa.int\/shake_rattle_and_roll\/"},"modified":"2026-10-08T00:31:49","modified_gmt":"2026-10-07T22:31:49","slug":"shake_rattle_and_roll","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/shake_rattle_and_roll\/","title":{"rendered":"Rist, skramle og rull"},"content":{"rendered":"
\n

Verdensrommet er ekstremt fiendtlig. Romfart\u00f8y m\u00e5 t\u00e5le ekstreme temperaturer, b\u00e5de varme og kulde, str\u00e5ling, magnetfelt, meteoritter, romskrot fra andre romfart\u00f8y og frav\u00e6r av luft.<\/p>\n<\/div>\n

Siden romfart\u00f8y er dyre \u00e5 bygge og skyte opp, \u00f8nsker vi at de skal vare s\u00e5 lenge som mulig. Hvis satellitter skal kunne overleve i rommet i mange \u00e5r, m\u00e5 de gjennomg\u00e5 (og best\u00e5!) mange tester p\u00e5 bakken.<\/p>\n

Den f\u00f8rste utfordringen satellittene m\u00e5 takle, er det kraftige st\u00f8yet og ristingene under en rakettoppskyting. Dette testes ved \u00e5 riste satellitten og utsette den for kraftig lyd fra enorme h\u00f8yttalere inne i et spesialkammer.<\/p>\n

Den andre utfordringen satellittene m\u00e5 takle i rommet, er \u00e5 t\u00e5le ekstreme temperaturer, b\u00e5de varme og kulde. Ekstrem oppvarming fra Solen simuleres i et lufttomt kammer utstyrt med kraftige lamper og speil. Sv\u00e6rt lave temperaturer oppn\u00e5s ved \u00e5 pumpe flytende nitrogen gjennom r\u00f8r i kammerveggene.<\/p>\n

For \u00e5 sikre at de elektriske systemene fungerer, plasseres satellitten i et kraftig magnetfelt som kan for\u00e5rsake elektriske feil. Datamaskiner overv\u00e5ker alt som skjer om bord p\u00e5 romfart\u00f8yet under disse p\u00e5kjenningene.<\/p>\n

I l\u00f8pet av et \u00e5r eller mer blir hver enkelt del som utgj\u00f8r romfart\u00f8yet testet og testet p\u00e5 nytt. N\u00e5r romfart\u00f8yet er satt sammen, blir det testet igjen. F\u00f8rst da vil ingeni\u00f8rene v\u00e6re sikre p\u00e5 at \u00abbarnet\u00bb deres vil bli en suksess n\u00e5r det n\u00e5r bane rundt jorden.<\/p>","protected":false},"excerpt":{"rendered":"

Outer space is extremely hostile. Spacecraft have to survive extremes of hot and cold, radiation, magnetic fields, meteorites, debris from other spacecraft and lack of air. Since spacecraft are expensive […]<\/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\/2012\/06\/gaia_antenna_in_test_chamber2\/17893611-2-eng-GB\/Gaia_antenna_in_test_chamber.jpg","esa_banner_description":"Gaia antenna in test chamber","esa_banner_credit":"Astrium\u2013A. Martin, 2012","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/06\/Gaia_antenna_in_test_chamber2","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-745","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\/nb\/wp-json\/wp\/v2\/posts\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=745"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/745\/revisions"}],"predecessor-version":[{"id":1888,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/745\/revisions\/1888"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=745"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=745"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=745"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=745"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=745"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=745"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=745"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}