Wheatstone and other telegraphs, 1839

Wheatstone and other telegraphs, 1839

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Caption: Wheatstone and other telegraphs. 19th-century diagrams showing the telegraphs of British physicist Charles Wheatstone (1839 and 1840, right and lower left), of a Mr Butzengeiger (upper centre), and of Dutch physicist Pieter Otto Coenraad Vorsselman de Heer (upper left). Diagram from 'Traite de telegraphie electrique' (1849) by French Catholic priest and physicist Francois Napoleon Marie Moigno (1804-1884).

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Keywords: 1800s, 1837, 1839, 1840, 1849, 19th century, artwork, black-and-white, book, british, butzengeiger, charles wheatstone, communication, communications, diagram, dutch, electric, electric telegraph, electrical, english, equipment, european, francois napoleon marie moigno, french, german, historical, history, illustration, invention, machine, monochrome, page, physical, physics, pieter otto coenraad vorsselman de heer, publication, research, technological, technology, telecommunication, telecommunications, telegraph, telegraphic, telegraphs, telegraphy, traite de telegraphie electrique

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