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In 1843 Manzetti first mooted the idea of a "speaking telegraph", or telephone, but didn't pursue the idea at the time.In 1864, to give his automaton the power of speech, Manzetti is reported to have invented his speaking telegraph –some reports state that he didn't actually get it working until the following year.
The one-needle telegraph proved highly successful on British railways, and 15,000 sets were in use at the end of the nineteenth century; some remained in service in the 1930s. [42] The Electric Telegraph Company, the world's first public telegraphy company, was formed in 1845 by financier John Lewis Ricardo and Cooke. [43] [44]
In 1836 Elderton, David Alter invented the electric telegraph, one year before the popular Morse telegraph was invented. David rigged the telegraph between his house and his barn. He was interviewed about the discovery going unobserved by other inventors and said: "I may say that there is no connection at all between the telegraph of Morse and ...
1844: Innocenzo Manzetti first suggests the idea of an electric "speaking telegraph", or telephone. 1849: Antonio Meucci demonstrates a communicating device to individuals in Havana. It is disputed that this is an electromagnetic telephone, but it is said to involve direct transmission of electricity into the user's body.
It contains every part of the Geneva manuscripts (including Problem 1, 2, 3 and 4). The Gagnebin edition from 1949 is based on three (of six) Geneva manuscripts (GM), which were preserved by Le Sage. It includes revisions made by Fatio as late as 1743, forty years after he composed the manuscript on which the Bopp edition was based.
An early experiment in electrical telegraphy was an 'electrochemical' telegraph created by the German physician, anatomist and inventor Samuel Thomas von Sömmerring in 1809, based on an earlier, less robust design of 1804 by Spanish polymath and scientist Francisco Salva Campillo. [10]
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According to Morse, telegraph dates only from 1832 when Pavel Schilling invented one of the earliest electrical telegraphs. [3] A telegraph message sent by an electrical telegraph operator or telegrapher using Morse code (or a printing telegraph operator using plain text) was known as a telegram.