Home » Early Telecommunications: Telecommunication, Carrier Pigeon, Photophone, Smoke Signal, Beacon, Semaphore Line, Relay League, Claude Chappe by Books LLC
Early Telecommunications: Telecommunication, Carrier Pigeon, Photophone, Smoke Signal, Beacon, Semaphore Line, Relay League, Claude Chappe Books LLC

Early Telecommunications: Telecommunication, Carrier Pigeon, Photophone, Smoke Signal, Beacon, Semaphore Line, Relay League, Claude Chappe

Books LLC

Published September 4th 2011
ISBN : 9781155441658
Paperback
40 pages
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 About the Book 

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 39. Chapters: Telecommunication, Carrier pigeon, Photophone, Smoke signal, Beacon, Semaphore line, Relay league,MorePlease note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 39. Chapters: Telecommunication, Carrier pigeon, Photophone, Smoke signal, Beacon, Semaphore line, Relay league, Claude Chappe, Canadian Parliamentary Motion on Alexander Graham Bell, Mechanical television, Heliograph, Homing pigeon, Whistled language, Bullroarer, Drum, Speaking tube, Hydraulic telegraph, Signal lamp, Polybius square, Fiery cross, Abraham Niclas Edelcrantz, Telephonoscope, Fryctoria, Telegraph hill. Excerpt: Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded drumbeats, lung-blown horns, or sent by loud whistles, for example. In the modern age of electricity and electronics, telecommunications now also includes the use of electrical devices such as telegraphs, telephones, and teleprinters, the use of radio and microwave communications, as well as fiber optics and their associated electronics, plus the use of the orbiting satellites and the Internet. A revolution in wireless telecommunications began in the first decade of the 20th century with pioneering developments in wireless radio communications by Nikola Tesla and Guglielmo Marconi. Marconi won the Nobel Prize in Physics in 1909 for his efforts. Other highly notable pioneering inventors and developers in the field of electrical and electronic telecommunications include Charles Wheatstone and Samuel Morse (telegraph), Alexander Graham Bell (telephone), Edwin Armstrong, and Lee de Forest (radio), as well as John Logie Baird and Philo Farnsworth (television). Telecommunications play an important role in the world economy and the worldwide telecommunication industrys revenue was estimated to be $3.85 trillion in 2008. The servic...