Georges-Louis Le Sage
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Georges-Louis Le Sage was a Genevan physicist and is most known for his theory of gravitation, for his invention of an electric telegraph and his anticipation of the kinetic theory of gases. He was a
Georges-Louis Le Sage
Electrical telegraph
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Electrical telegraphy is point-to-point distance communicating via sending electric signals over wire, a system primarily used from the 1840s until the late 20th century. It was the first electrical t
Georges-Louis Le Sage
…Le Sage (French: ; 13 June 1724 – 20 November 1803) was a Genevan physicist and is most known for his theory of gravitation, for his invention of an electric telegraph and his anticipation of the kinetic theory of gases. He was a contributor to Diderot's Encyclopédie. Le Sage was born in Geneva, his father, a descendant…
Cooke and Wheatstone's five-needle telegraph from 1837
Morse telegraph
Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske
Sömmering's electric telegraph in 1809