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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク John Serson ： ウィキペディア英語版 John Serson John Serson (died 1744) was an English sea captain best known for his invention of a 'whirling speculum'. 〔Bedini SA, "History Corner: The Artificial Horizon", ''Professional Surveyor Magazine'' December 1999 Volume 19 Number 10 ()〕 This was an early form of artificial horizon designed for marine navigation, consisting of a mirror, attached to a spinning top, that attempted to remain in a horizontal plane despite the movement of the ship. This device can be seen as a precursor to the gyroscope used in modern inertial navigation, although it was not itself a gyroscope. 〔Turner G, "History of Gyroscopes", ''gyroscopes.org'' () - account of first test of Serson's speculum〕 Serson was lost at sea on the HMS Victory in 1744. 〔Wagner JF, "From Bohnenberger's Machine to Integrated Navigation Systems, 200 Years of Inertial Navigation", ''Photogrammetric Week 05'', Wichmann Verlag, Heidelberg 2005 ()〕 == References == 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「John Serson」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.