{"id":835,"date":"2004-12-02T15:55:00","date_gmt":"2004-12-02T14:55:00","guid":{"rendered":"https:\/\/kids.esa.int\/rockets_in_war_and_peace\/"},"modified":"2026-10-08T00:32:49","modified_gmt":"2026-10-07T22:32:49","slug":"rockets_in_war_and_peace","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/rockets_in_war_and_peace\/","title":{"rendered":"Raketit sodassa ja rauhan aikana"},"content":{"rendered":"<div class=\"lede\">\n<p>Ensimm\u00e4inen henkil\u00f6, joka suunnitteli raketin, jossa k\u00e4ytettiin nestem\u00e4isi\u00e4 polttoaineita ruudin sijaan, oli ven\u00e4l\u00e4inen opettaja nimelt\u00e4 Konstantin Tsiolkovsky. Kesti yli 20 vuotta, ennen kuin nestem\u00e4ist\u00e4 polttoainetta k\u00e4ytt\u00e4v\u00e4 raketti lensi ensimm\u00e4isen kerran. 16. maaliskuuta 1926 amerikkalaisen Robert Goddardin rakentama pieni raketti nousi 12,4 metrin korkeuteen lennolla, joka kesti 2,5 sekuntia.<\/p>\n<\/div>\n<p>Seuraavien vuosien aikana Saksa nousi johtavaan asemaan rakettien kehitt\u00e4misess\u00e4. Tuloksena syntyi V-2-ohjus, jota k\u00e4ytettiin muun muassa Lontoon kaltaisten kaupunkien pommittamiseen toisen maailmansodan loppuvaiheessa.<\/p>\n<p>Vuonna 1945 monet saksalaiset rakettitutkijat siirtyiv\u00e4t t\u00f6ihin Yhdysvaltoihin tai Neuvostoliittoon. He auttoivat rakentamaan suurempia ja tehokkaampia ohjuksia, joita voitiin k\u00e4ytt\u00e4\u00e4 my\u00f6s avaruustutkimuksessa.<\/p>\n<p>Sputnik 1, maailman ensimm\u00e4inen satelliitti, laukaistiin Neuvostoliiton raketilla 4. lokakuuta 1957. Kymmenen vuoden kuluessa Yhdysvallat oli saksalaisen tiedemiehen Wernher von Braunin johdolla rakentanut Saturn 5 -raketin, jolla voitiin kuljettaa kolme miest\u00e4 Kuuhun.<\/p>\n<p>Vuodesta 1979 l\u00e4htien Euroopassa on kehitetty Ariane-kantorakettisarja, joka kuuluu maailman tehokkaimpiin ja luotettavimpiin.<\/p>","protected":false},"excerpt":{"rendered":"<p>The first person to design a rocket that used liquid fuels instead of gunpowder was a Russian schoolteacher named Konstantin Tsiolkovsky. More than 20 years passed before the first flight [&hellip;]<\/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\/03\/dr_robert_h._goddard2\/17865305-3-eng-GB\/Dr_Robert_H._Goddard.jpg","esa_banner_description":"Dr Robert H. 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