{"id":815,"date":"2004-12-03T09:46:00","date_gmt":"2004-12-03T08:46:00","guid":{"rendered":"https:\/\/kids.esa.int\/bridging_the_world\/"},"modified":"2026-10-08T00:32:35","modified_gmt":"2026-10-07T22:32:35","slug":"bridging_the_world","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/bridging_the_world\/","title":{"rendered":"Att f\u00f6ra samman v\u00e4rlden"},"content":{"rendered":"
\n

Idag \u00e4r vi vana vid att titta p\u00e5 direkts\u00e4nd TV fr\u00e5n andra sidan jordklotet. Sportevenemang, intervjuer, tal och krig kan alla f\u00f6ljas bekv\u00e4mt fr\u00e5n f\u00e5t\u00f6ljen, tack vare kommunikationssatelliter.<\/p>\n<\/div>\n

De f\u00f6rsta f\u00f6rs\u00f6ken att reflektera radiosignaler mot stora ballonger i rymden var inte s\u00e4rskilt framg\u00e5ngsrika. I juli 1962 f\u00f6ljdes de av en satellit vid namn Telstar. Den v\u00e4ckte stor uppm\u00e4rksamhet genom att s\u00e4nda de f\u00f6rsta direkts\u00e4nda TV-bilderna fr\u00e5n Amerika till Europa. Idag finns det hundratals kommunikationssatelliter. De flesta \u00e4gs av privata f\u00f6retag. De kretsar i geostation\u00e4ra banor, 36 000 km ovanf\u00f6r ekvatorn, s\u00e5 att de kan s\u00e4nda \u00f6ver ett stort omr\u00e5de.<\/p>\n

TV-, telefon- och radiosignaler s\u00e4nds upp till satelliten via en stor parabolantenn. De f\u00f6rst\u00e4rks av satelliten och skickas sedan vidare till en mottagningsstation. TV-signaler kan ocks\u00e5 s\u00e4ndas direkt till parabolantenner p\u00e5 hustaken.<\/p>\n

Kommunikationssatelliterna \u00e4r numera mycket stora och kraftfulla. M\u00e5nga av dem skjuts upp med den europeiska Ariane-raketen. Satelliten Thaicom 4, som sk\u00f6ts upp med Ariane-5 den 11 augusti 2005, v\u00e4gde 6,5 ton. Det var den st\u00f6rsta privat\u00e4gda kommunikationssatelliten som n\u00e5gonsin skjutits upp.<\/p>","protected":false},"excerpt":{"rendered":"

Today, we are used to watching live TV from the other side of the world. Sports events, interviews, speeches, wars can all be seen from the comfort of an armchair, […]<\/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\/2004\/12\/kids_watching_tv2\/17867599-3-eng-GB\/kids_watching_tv.jpg","esa_banner_description":"","esa_banner_credit":"AP Photo\/Luis Romero","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/kids_watching_tv2","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":[10,54,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-815","post","type-post","status-publish","format-standard","hentry","category-learn","category-space-technologies-on-earth","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\/815","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=815"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/815\/revisions"}],"predecessor-version":[{"id":1958,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/815\/revisions\/1958"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=815"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=815"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=815"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=815"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=815"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=815"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=815"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}