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http://www.cosmos.ru/mirrors/stern/Education/Mhmpause.html.
http://www.cosmos.ru/mirrors/stern/Education/Mhmpause.html.
1. Explorers 1 and 3
... Explorers 1/3 . ... Orbit . ... Launch of Explorer 1 . ... The USSR was first, sending off its first "Sputnik" ("satellite") on October 4, followed by Sputnik II on November 3. ... The spacecraft, named Explorer 1, was launched 31 January 1958 and was designed and built by a group of scientists from the University of Iowa, led by James Van Allen . ... the launch of Explorer 1;Click . ... Explorer 2 failed to orbit, but Explorer 3, launched March 26, was successful, and it did carry a tape recorder. ...
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Ссылки http://www.cosmos.ru/mirrors/stern/Education/wexp13.html -- 11.5 Кб -- 24.03.2006
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