Hooke telegraph system, 1684

Hooke telegraph system, 1684

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Credit: SCIENCE PHOTO LIBRARY

Caption: Hooke telegraph system. Historical illustration of the optical telegraph system presented to the Royal Society in 1684 by English natural philosopher Robert Hooke (1635-1703). The lecture was titled 'On Showing a Way How to Communicate One's Mind at Great Distances'. Hooke anticipated many of the features of later systems, such as those developed in the 1790s by the Chappe brothers. Hooke proposed a code and cut-out symbols, as well as protocols for signal transmission. However, his system was never used in practice. Artwork from 'Electricite' (1911) by Max de Nansouty, part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.

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