Le Sage Early Electric Telegraph, 1774
Georges-Louis Le Sage (1724-1803) was a Genevan physicist. In 1774 he realized an early electric telegraph. The telegraph had a separate wire for each of the 26 letters of the alphabet and its range was only between two rooms of his home. An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via dedicated telecommunication lines or radio
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1770s 1774 Figuier Genevan Georges-louis Grandes Inventions Lesage Sage Signals Tele-communication Telegraphy
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