...An astronaut wears a space suit and engages in activities in outer space outside a spacecraft. The name was given because the way an astronaut acts in a space suit in a weightless environment is similar to swimming underwater in a wetsuit, but the correct term should be EVA (extra vehicular activity). The first time was in March 1965, when Soviet (now Russian) cosmonaut AA Leonov engaged in 10 minutes of activity on the Voskhod 2 spacecraft. *Some of the terms used in "extravehicular activity" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…宇宙飛行士が宇宙服を着て,宇宙船外の宇宙空間で活動を行うこと。無重量状態で宇宙服を着て行動するようすが,ウェットスーツを着用して水中遊泳をする状態と似ていることからこの名がつけられたが,正しくは宇宙船外活動(EVA,extra vehicular activityの略)と呼ぶべきである。1965年3月,ソ連(現ロシア)のボスホード2号の宇宙飛行士A.A.レオノフが10分間の活動を行ったのが最初である。… ※「宇宙船外活動」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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