翻訳と辞書 ・ Jones Buttress
・ Jones calculus
・ Jones Carioca
・ Jones Cash Store
・ Jones Channel
・ Jones Chapel
・ Jones Chapel (New York City)
・ Jones Chapel, Alabama
・ Jones Chilengi
・ Jones City, Ohio
・ Jones Classic Australian Car Guide
・ Jones College
・ Jones College (Jacksonville)
・ Jones College Prep High School
・ Jones Corner, Virginia
・ Jones Counter
・ Jones Country
・ Jones County
・ Jones County Courthouse
・ Jones County Courthouse (Gray, Georgia)
・ Jones County Courthouse (Iowa)
・ Jones County Junior College
・ Jones County School District (Mississippi)
・ Jones County School System
・ Jones County, Alabama
・ Jones County, Georgia
・ Jones County, Iowa
・ Jones County, Mississippi
・ Jones County, North Carolina
・ Jones County, South Dakota
|
|
| Jones Counter ： ウィキペディア英語版 |
Jones Counter
The Jones Counter is a device fitted to the front wheel of a bicycle that counts the revolutions of the wheel. It was invented in 1971 by Alan Jones in order to measure the length of road running race courses.〔(History of Jones Counter )〕 The counter has gears that drive a mechanical digital counter. One count typically corresponds to about 1/20th of a wheel revolution (this varies if a different gear ratio is used); this provides a resolution of about 10 cm in course length, although overall accuracy, depending on calibration and other factors, is lower, but normally better than 1 part in 1,000.
==Models==
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「Jones Counter」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.
|
|