翻訳と辞書 |
Earth battery : ウィキペディア英語版 | Earth battery An Earth battery is a pair of electrodes made of two dissimilar metals, such as iron and copper, which are buried in the soil or immersed in the sea. Earth batteries act as water activated batteries and if the plates are sufficiently far apart, they can tap telluric currents. Earth batteries are sometimes referred to as telluric power sources and telluric generators. ==History== One of the earliest examples of an earth battery was built by Alexander Bain in 1841 in order to drive a ''prime mover''—a device that transforms the flow or changes in pressure of a fluid into mechanical energy.〔"Prime mover", ''McGraw-Hill Concise Encyclopedia of Science and Technology'', Third Edition, Sybil P. Parker, ed. McGraw-Hill, Inc., 1994, p. 1498.〕〔(Bain )〕 Bain buried plates of zinc and copper in the ground about one meter apart and used the resulting voltage, of about one volt, to operate a clock. Carl Friedrich Gauss, who had researched Earth's magnetic field, and Carl August von Steinheil, who built one of the first electric clocks and developed the idea of an "Earth return" (or "ground return"), had previously investigated such devices. Daniel Drawbaugh received for an Earth battery for electric clocks (with several improvements in the art of Earth batteries). Another early patent was obtained by Emil Jahr ''Method of utilizing electrical Earth currents''). In 1875, James C. Bryan received for his ''Earth Battery''. In 1885, George Dieckmann, received US patent for his ''Electric Earth battery''. In 1898, Nathan Stubblefield〔(The Real Father of Radio )〕 received for his electrolytic coil battery, which was a combination of an earth battery and a solenoid. (For more information see US patents , , , , , , and .) The Earth battery, in general, generated power for early telegraph transmissions and formed part of a tuned circuit that amplified the signalling voltage over long distances.
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「Earth battery」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.
|
|