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1999 in science : ウィキペディア英語版 | 1999 in science
The year 1999 in science and technology involved some significant events. ==Aeronautics==
* February 27 – While trying to circumnavigate the world in a hot air balloon, Colin Prescot and Andy Elson set a new endurance record after being in their balloon for 233 hours and 55 minutes. * March 3–20 – Bertrand Piccard and Brian Jones successfully complete a non-stop circumnavigation of the world in a hot air balloon.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「1999 in science」の詳細全文を読む
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