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Wireless Telegraphy Popularly Explained

Wireless Telegraphy Popularly Explained


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About the Book

From the Preface. THIS little work, although extending only to about one hundred pages, contains a good account of the discoveries in telegraphy without connecting wires. The subject-matter is arranged in a readable form, the illustrations are excellent, and the descriptions of the experiments are accurate. Mr. Kerr having visited Dundee, the town where James Bowman Lindsay lived, and where his memory is greatly and very justly respected, has evidently been caught in the whirl of local enthusiasm. Lindsay was undoubtedly a man of great originality of ideas, but some of his theories on electrical signaling were not novel in 1854, and were deemed impracticable at the time. I was the officer appointed by the Electric Telegraph Company to assist him in making his experiments in London. As a scholarly linguist, however, he, by unaided effort, accomplished great things in literature, quite sufficient to make him famous. In taking account of the early work done in this department of science, the earlier experiments of Morse which were carried out by Gale in 1842 on the Susquehanna River, as recorded in Vail's early work on telegraphy, should not be forgotten. Several other American professors and electricians have recently had considerable success in their investigations of conduction and induction as a plied to signaling without intervening wires-notably Professor Trowbridge of Harvard, Mr. Wiley Smith of Kansas, Mr. Tesla, and Messrs. Phelps, Gilliland, and Edison. In England we succeeded in bridging the Solent in 1882, and in 1896 in communicating with the Fastnet Lighthouse by Mr. Willoughby Smith's conduction method. In India communication has been maintained across rivers for practical purposes on a conduction system devised by Mr. Melhuish. As regards Mr. Marconi's position as a discoverer, it should be understood that he was the first to conceive and to patent the application of Hertzian waves to telegraphy apart from mere signaling. Branly made the first coherer, but Marconi was unquestionably the first to make the coherer into a telegraphic relay....


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Product Details
  • ISBN-13: 9781544118581
  • Publisher: Createspace Independent Publishing Platform
  • Publisher Imprint: Createspace Independent Publishing Platform
  • Height: 229 mm
  • No of Pages: 126
  • Spine Width: 7 mm
  • Width: 152 mm
  • ISBN-10: 1544118589
  • Publisher Date: 24 Feb 2017
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 177 gr


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