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The word telegraph (from Ancient Greek: τῆλε 'at a distance' and γράφειν 'to write') was coined by the French inventor of the semaphore telegraph, Claude Chappe, who also coined the word semaphore. [2] A telegraph is a device for transmitting and receiving messages over long distances, i.e., for telegraphy.
The Cooke and Wheatstone telegraph was an early electrical telegraph system dating from the 1830s invented by English inventor William Fothergill Cooke and English scientist Charles Wheatstone. It was a form of needle telegraph , and the first telegraph system to be put into commercial service.
The telegraph's nearly-instant transmission of messages across continents – and between continents – had widespread social and economic impacts. The electric telegraph led to Guglielmo Marconi's invention of wireless telegraphy, the first means of radiowave telecommunication, which he began in 1894. [5]
Sir Charles Wheatstone (/ ˈ w iː t s t ə n /; [1] 6 February 1802 – 19 October 1875) was an English physicist and inventor best known for his contributions to the development of the Wheatstone bridge, originally invented by Samuel Hunter Christie, which is used to measure an unknown electrical resistance, and as a major figure in the development of telegraphy.
telegraph key, recording telegraph, ‘dot-and-dash’ telegraph alphabet Alfred Lewis Vail (September 25, 1807 – January 18, 1859) was an American machinist and inventor. Along with Samuel Morse , Vail was central in developing and commercializing American electrical telegraphy between 1837 and 1844.
An early telautograph machine. The telautograph is an ancestor of the modern fax machine. It transmits electrical signals representing the position of a pen or tracer at the sending station to repeating mechanisms attached to a pen at the receiving station, thus reproducing at the receiving station a drawing, writing, or signature made by the sender.
Édouard Belin and his Belinograph. Technologically and commercially, the wirephoto was the successor to Ernest A. Hummel's Telediagraph of 1895, which had transmitted electrically scanned shellac-on-foil originals over a dedicated circuit connecting the New York Herald and the Chicago Times Herald, the St. Louis Republic, the Boston Herald, and the Philadelphia Inquirer.
David Edward Hughes (16 May 1830 – 22 January 1900), was a British-American inventor, practical experimenter, and professor of music known for his work on the printing telegraph and the microphone. [3] He is generally considered to have been born in London but his family moved around that time so he may have been born in Corwen, Wales. [4]