Bain's chemical telegraph, 1850.
4 0 c m
actual image size: 26cm x 32cm

Bain's chemical telegraph, 1850.

Exton, David

© Science Museum / Science & Society Picture Library


Devised by the Scottish clockmaker Alexander Bain (1810-1877), this chemical telegraph was the first system of electrical facsimile transmision, and was used for recording ordinary Morse code signals. It was first demonstrated by Bain in 1842. Viewed from above.



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