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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 Jeremy Thacker ： ウィキペディア英語版 Jeremy Thacker Jeremy Thacker was an 18th-century writer and watchmaker, who coined the word "chronometer" for precise clocks designed to find longitude at sea.〔 He himself created a marine chronometer positioned on gimbals and within a vacuum, but it was a failure.〔''Old Ironsides: eagle of the sea : the story of the USS Constitution'' David G. Fitz-Enz p.92 ()〕 The idea of a vacuum for a marine clock had already been proposed by the Italian clockmaker Antonio Tempora in 1668.〔(''Encyclopedia of time'' Samuel L. Macey p.347 )〕 Slightly later, John Harrison would successfully build marine chronometers from 1730.〔 He wrote ''The Longitudes Examined'' in 1714.〔(''The world of mathematics'' by James Roy Newman p.806 )〕 ==Hoax?== According to an article〔(''Longitude forged'' by Pat Rogers )〕 published in the Times Literary Supplement in November 2008, "Thacker may never of existed and his proposal now emerges possibly as a hoax?". 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「Jeremy Thacker」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.