Claude Chappe demonstrating his optical telegraph (semaphore) system in 1793 (c1870). Artist: Unknown
Sujet

Claude Chappe demonstrating his optical telegraph (semaphore) system in 1793 (c1870). Artist: Unknown

Légende

Claude Chappe demonstrating his optical telegraph (semaphore) system in 1793 (c1870). Chappe's (1763-1805) system was in use in France and French colonies until about 1850. Every 5 to 10 miles men in a repeater tower read the message through a telescope, then relayed it to the next tower. From Les Merveilles de la Science by Louis Figuier. (Paris, c1870).
Oxford Science Archive

Date

1870

Crédit

Photo12/Heritage Images

Notre référence

HRM19B65_197

Model release

Non

Licence

Droits gérés

Format disponible

50,0Mo (4,5Mo) / 30,6cm x 40,9cm / 3619 x 4826 (300dpi)

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