Going outside a spacecraft and walking around in space. The problems are weight and lack of footholds, so a space swarm connects the body to the spacecraft with a lifeline that supplies oxygen and other fluids, and moves around using a space gun or an MMU (extravehicular mobility unit) without a lifeline. In March 1965, Lt. Colonel A. Leonov of the Soviet Union's Voskhod 2 became the first man in history to successfully perform a spacewalk that lasted about 10 minutes. In June 1965, Air Force Lieutenant Colonel EH White of Gemini 4 became the first American to perform a spacewalk that lasted 20 minutes. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
宇宙船の外に出て宇宙空間を歩き回ること。重さも足場もないのが問題であり,酸素などを供給する命綱で宇宙船と体を結び,宇宙銃を使って動いたり,MMU (船外活動装置) を使って命綱なしで活動する。 1965年3月,ソ連の『ボスホート』2号の A.レオーノフ中佐が,史上初めて約 10分間の宇宙遊泳に成功した。アメリカでは 65年6月,『ジェミニ』4号の E. H.ホワイト空軍少佐が,アメリカ人として初めて 20分間宇宙遊泳をした。
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