Early electric telegraph receiver, 19th Century illustration

Numéro d’image : 12446433
Early electric telegraph receiver, 19th Century illustration
Early electric telegraph receiver. 1868 illustration of an early telegraph receiver by American inventor Samuel Morse. Swiss physicist Georges-Louis Le Sage invented the first telegraph machine in 1774. However, although his system worked, it was impractical and not adopted. Practical electric telegraphy was invented in 1837. Morse contributed to the invention of a single-wire telegraph system based on European telegraphs and co-invented Morse code.
Licence : Droits gérés
Crédit: Science Photo Library / Collection Abecasis
Taille de l’image : 3272 px × 2969 px
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