Thomson telegraph recorder. Historical illustration of the telegraph siphon (or syphon) recorder invented in 1858 by British physicist William Thomson
Thomson telegraph recorder. Historical illustration of the telegraph siphon (or syphon) recorder invented in 1858 by British physicist William Thomson (1824-1907). Better known as Lord Kelvin, he was knighted in 1866 for his work on Atlantic telegraph cable signals and galvanometers. The siphon recorder automatically recorded a telegraph message as a trace of ink on a strip of paper. The ink siphon worked on the reverse of the principle of a mirror galvanometer, with electrostatics resulting in a spray of ink. Artwork from 'Electricite' (1911) by Max de Nansouty, part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.
Size: 4148px × 4292px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No
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