翻訳と辞書 Words near each other ・ Torsion ・ Torsion (algebra) ・ Torsion (gastropod) ・ Torsion (mechanics) ・ Torsion abelian group ・ Torsion bar suspension ・ Torsion box ・ Torsion coefficient (topology) ・ Torsion conjecture ・ Torsion constant ・ Torsion dystonia ・ Torsion field ・ Torsion field (pseudoscience) ・ Torsion group ・ Torsion of a curve ・ Torsion pendulum clock ・ Torsion sheaf ・ Torsion siege engine ・ Torsion spring ・ Torsion subgroup ・ Torsion tensor ・ Torsion-Bar Antenna ・ Torsion-free ・ Torsion-free abelian group ・ Torsion-free abelian groups of rank 1 ・ Torsion-free module ・ Torsional strain ・ Torsional vibration ・ Torsionless module ・ Torsk Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Torsion pendulum clock ： ウィキペディア英語版 Torsion pendulum clock :''Kundo reverts here. For other use, see Kundo (disambiguation)'' A torsion pendulum clock, or torsion clock (also known as 400-day or anniversary clock), is a mechanical clock which keeps time with a mechanism called a torsion pendulum. This is a weighted disk or wheel, often a decorative wheel with 3 or 4 chrome balls on ornate spokes, suspended by a thin wire or ribbon called a torsion spring (also known as "suspension spring"). The torsion pendulum rotates about the vertical axis of the wire, twisting it, instead of swinging like an ordinary pendulum. The force of the twisting torsion spring reverses the direction of rotation, so the torsion pendulum oscillates slowly, clockwise and counterclockwise. The clock's gears apply a pulse of torque to the top of the torsion spring with each rotation to keep the wheel going. The wheel and torsion spring function similarly to a watch's balance wheel and hairspring, as a harmonic oscillator to control the rate of the clock's hands. ==Description== Torsion clocks are usually delicate, ornamental, spring-wound mantel clocks. The polished clock mechanism is exposed under a glass case or dome, to allow people to watch the torsion pendulum turn. Clocks of this style, first made by Anton Harder around 1880, are also known as 400-day or anniversary clocks, because many can run for an entire year on a single winding. This does not mean they will keep accurate time the whole year. It's best to wind the clock once a month. But some models will run up to 1000 days on a single winding. 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「Torsion pendulum clock」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.