{"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\/ro\/shake_rattle_and_roll\/","title":{"rendered":"Zguduie, cl\u0103n\u021b\u0103ne \u0219i d\u0103-i drumul"},"content":{"rendered":"
\n

Spa\u021biul cosmic este extrem de ostil. Navele spa\u021biale trebuie s\u0103 reziste la temperaturi extreme, at\u00e2t ridicate, c\u00e2t \u0219i sc\u0103zute, la radia\u021bii, c\u00e2mpuri magnetice, meteori\u021bi, resturi provenite de la alte nave spa\u021biale \u0219i la lipsa aerului.<\/p>\n<\/div>\n

Av\u00e2nd \u00een vedere c\u0103 construirea \u0219i lansarea navelor spa\u021biale sunt costisitoare, ne dorim ca acestea s\u0103 aib\u0103 o durat\u0103 de via\u021b\u0103 c\u00e2t mai lung\u0103. Pentru ca sateli\u021bii s\u0103 poat\u0103 rezista \u00een spa\u021biu timp de mul\u021bi ani, ei trebuie s\u0103 fie supu\u0219i (\u0219i s\u0103 treac\u0103 cu bine!) numeroase teste la sol.<\/p>\n

Primul obstacol pe care sateli\u021bii trebuie s\u0103 \u00eel dep\u0103\u0219easc\u0103 este zgomotul puternic \u0219i vibra\u021biile din timpul lans\u0103rii rachetei. Acest lucru se testeaz\u0103 prin scuturarea satelitului \u0219i expunerea acestuia la un zgomot puternic provenit de la difuzoare uria\u0219e aflate \u00een interiorul unei camere speciale.<\/p>\n

Al doilea pericol pe care sateli\u021bii trebuie s\u0103 \u00eel dep\u0103\u0219easc\u0103 \u00een spa\u021biu este acela de a rezista la temperaturi extreme, at\u00e2t de calde, c\u00e2t \u0219i de reci. \u00cenc\u0103lzirea extrem\u0103 provocat\u0103 de Soare este simulat\u0103 \u00eentr-o camer\u0103 f\u0103r\u0103 aer, dotat\u0103 cu l\u0103mpi puternice \u0219i oglinzi. Temperaturile foarte sc\u0103zute sunt ob\u021binute prin pomparea azotului lichid prin conductele din pere\u021bii camerei.<\/p>\n

Pentru a se asigura c\u0103 sistemele electrice func\u021bioneaz\u0103 corespunz\u0103tor, satelitul este plasat \u00eentr-un c\u00e2mp magnetic puternic, care poate provoca defec\u021biuni electrice. Calculatoarele monitorizeaz\u0103 tot ceea ce se \u00eent\u00e2mpl\u0103 la bordul navei spa\u021biale \u00een timpul acestor \u00eencerc\u0103ri.<\/p>\n

Pe parcursul unui an sau mai mult, fiecare component\u0103 a navei spa\u021biale este testat\u0103 \u0219i retestat\u0103. Dup\u0103 asamblarea navei spa\u021biale, aceasta este testat\u0103 din nou. Abia atunci inginerii vor fi siguri c\u0103 \u201ecopilul\u201d lor va avea succes odat\u0103 ce va ajunge pe orbit\u0103.<\/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\/ro\/wp-json\/wp\/v2\/posts\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=745"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/745\/revisions"}],"predecessor-version":[{"id":1888,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/745\/revisions\/1888"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=745"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=745"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=745"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=745"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=745"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=745"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=745"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}