翻訳と辞書 Words near each other ・ Doora Barefield ・ Doora Church ・ Doora Mine ・ Doora, Agra ・ Doora, County Clare ・ Doora, Mysore ・ Doorada Betta ・ Dooradoyle ・ Dooragan National Park ・ Dooralong, New South Wales ・ Dooram Arike ・ Doorathu Idi Muzhakkam ・ Dooratwa ・ Doorawarrah ・ Doorbeen ・ Doorbell ・ Doorbuster ・ Doordarshan ・ Doordarshan Kendra Mumbai ・ Doordarshan Kendra, Jalandhar ・ Doordarshan Kendra, Madurai ・ Doordarshi Party ・ Doordash ・ Doore Doore Oru Koodu Koottam ・ Doorie ・ Doorika ・ Doorin Road railway station ・ Dooriyaan ・ Dooriyan ・ Doorjamb 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 Doorbell ： ウィキペディア英語版 Doorbell A doorbell is a signaling device typically placed near an entry door to a building. When a visitor presses a button the bell rings inside the building, alerting the occupant to the presence of the visitor. Although the first doorbells were mechanical, activated by pulling a cord, modern doorbells are electric — they are actuated by an electric switch. ==History== William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. A precursor to the electric doorbell, specifically a bell that could be rung at a distance via an electric wire, was invented by Joseph Henry around 1831. By the early 1900s, electric doorbells had become commonplace. 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「Doorbell」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.