Telephone The Microphone And The Phonograph

Author : Count Du Moncel
Publisher :
ISBN 13 : 9781332339112
Total Pages : 284 pages
Book Rating : 4.3/5 (391 download)

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Download or read book The Telephone, the Microphone and the Phonograph written by Count Du Moncel and published by . This book was released on 2015-08-06 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Telephone, the Microphone and the Phonograph: Authorized Translation With Additions and Corrections by the Author, With 70 Illustrations on Woods Strictly speaking, the telephone is merely an instrument adapted for the transmission of sound to a distance, and this idea of transmitting sound is as old as the world itself. The Greeks made use of means which might effect it, and there is no doubt that these means were sometimes used for the pagan oracles. But such transmission of sound was within somewhat narrow limits, and certainly did not exceed those of a speaking-tube. Mr. Preece considers that the earliest document in which this transmission of sound to a distance is distinctly formulated dates from 1667: he refers to a paper by one Robert Hooke, who writes to this effect: "It is not impossible to hear a whisper at a furlong's distance, it having been already done; and perhaps the nature of the thing would not make it more impossible, though that furlong should be ten times multiply d.And though some famous authors have affirm'd it impossible to hear through the thinnest plate of Muscovy glass; yet I know a way by which 'tis easie enough to hear one speak through a wall a yard thick. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.