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)