{"id":837,"date":"2004-12-02T15:55:00","date_gmt":"2004-12-02T14:55:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_first_rockets\/"},"modified":"2026-10-08T00:32:50","modified_gmt":"2026-10-07T22:32:50","slug":"the_first_rockets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/the_first_rockets\/","title":{"rendered":"Az els\u0151 rak\u00e9t\u00e1k"},"content":{"rendered":"
\n

A F\u00f6ld\u00f6n minden \u2013 bele\u00e9rtve minket is \u2013 a gravit\u00e1ci\u00f3s er\u0151 hat\u00e1s\u00e1ra a f\u00f6ldh\u00f6z tapad. Gravit\u00e1ci\u00f3 n\u00e9lk\u00fcl mindannyian elrep\u00fcln\u00e9nk az \u0171rbe. Azt mondj\u00e1k, hogy Isaac Newton akkor fedezte fel a gravit\u00e1ci\u00f3t, amikor egy alma a fej\u00e9re esett.<\/p>\n<\/div>\n

Ahhoz, hogy eljussunk az \u0171rbe, rak\u00e9tahajt\u00e1s\u00fa hordoz\u00f3rak\u00e9t\u00e1t haszn\u00e1lunk, hogy legy\u0151zz\u00fck a F\u00f6ld gravit\u00e1ci\u00f3s vonz\u00e1s\u00e1t. Id\u0151r\u0151l id\u0151re m\u00e1s \u00f6tleteket is felvetettek. 1865-ben Jules Verne tudom\u00e1nyos-fantasztikus \u00edr\u00f3 azt javasolta, hogy egy nagy teljes\u00edtm\u00e9ny\u0171 \u00e1gy\u00faval juttass\u00e1k el az embereket a Holdra. Az ut\u00f3bbi id\u0151ben a tud\u00f3sok azt vizsg\u00e1lj\u00e1k, hogy nagy teljes\u00edtm\u00e9ny\u0171 m\u00e1gnesek seg\u00edts\u00e9g\u00e9vel lehetne-e \u0171rhaj\u00f3t p\u00e1ly\u00e1ra \u00e1ll\u00edtani.<\/p>\n

A rak\u00e9t\u00e1k m\u00e1r r\u00e9g\u00f3ta l\u00e9teznek. T\u00f6bb mint 800 \u00e9vvel ezel\u0151tt K\u00edn\u00e1ban tal\u00e1lt\u00e1k fel \u0151ket. Az els\u0151 rak\u00e9t\u00e1k nagyon egyszer\u0171ek voltak \u2013 egy kartoncs\u0151, amelyet l\u0151porral t\u00f6lt\u00f6ttek meg, \u00e9s egy vezet\u0151rudhoz r\u00f6gz\u00edtettek \u2013, hasonl\u00f3an a mai t\u0171zij\u00e1t\u00e9kokhoz.<\/p>\n

1232-ben a k\u00ednaiak ezekkel a \u2018t\u0171znyilakkal\u2019 gy\u0151zt\u00e9k le a bet\u00f6r\u0151 mongol sereget. A rak\u00e9t\u00e1k gy\u00e1rt\u00e1s\u00e1nak ismerete hamarosan elterjedt a K\u00f6zel-Keleten \u00e9s Eur\u00f3p\u00e1ban is, ahol szint\u00e9n fegyverk\u00e9nt haszn\u00e1lt\u00e1k \u0151ket. K\u00e9s\u0151bb a l\u00e1tv\u00e1nyos t\u0171zij\u00e1t\u00e9kokhoz is n\u00e9pszer\u0171v\u00e9 v\u00e1ltak.<\/p>","protected":false},"excerpt":{"rendered":"

Everything on Earth \u2013 including us \u2013 is held down by the force of gravity. Without gravity, we would all float off into space. It is said that Isaac Newton […]<\/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\/rockets_fireworks_cartoon2\/17907457-2-eng-GB\/Rockets_fireworks_cartoon.gif","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/Rockets_fireworks_cartoon2","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":[10,41,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-837","post","type-post","status-publish","format-standard","hentry","category-learn","category-rockets-technology","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=837"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/837\/revisions"}],"predecessor-version":[{"id":1980,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/837\/revisions\/1980"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=837"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=837"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=837"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=837"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=837"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=837"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=837"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}