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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 Paris inch ： ウィキペディア英語版 Paris inch The Paris inch or pouce is an archaic unit of length that, among other uses, was common for giving the measurement of lenses. The Paris inch could be subdivided into 12 Paris lines (''ligne''), and 12 Paris inches made a Paris foot.〔 The Paris foot, Paris inch and Paris line could be abbreviated with the prime symbol ( ′ ), double prime symbol ( ″ ), and triple prime symbol ( ‴ ) respectively, like some other inch and foot units.〔 The Paris inch is longer than the English inch and the Vienna inch, although the Vienna inch was subdivided with a decimal, not 12 lines.〔〔 warre.biobees.com/christ.pdf, Notes by David Heaf on ''Anweisung zur nützlichen and angenehmen Bienenzucht für alle Gegenden'' by Pfarrer Johann Ludwig Christ (1739-1813) Rodheim, Hessen, Germany〕〔 http://web.archive.org/web/20070621175054/http://www.btinternet.com/~matthewbrown/h-m.htm〕 A famous measurement made using the Paris inch is the lens measurement of the first great refractor telescope, the Dorpat Great Refractor, also known as the Fraunhofer 9-inch. The 9-Paris inch diameter lens was made by Joseph von Fraunhofer, which works out to about (English inches) aperture achromatic lens (the largest of its day).〔(adsabs link ) ''Fraunhofer and the Great Dorpat Refractor'', Waaland, J. Robert, American Journal of Physics, Volume 35, Issue 4, pp. 344-350 (1967)〕〔 http://www.obs.ee/obs/instrumendid/fr.htm〕 ==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「Paris inch」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.