Grenet electric cell, 1870.
4 0 c m
 
36cm
actual image size: 28cm x 32cm

Grenet electric cell, 1870.

© Science Museum / Science & Society Picture Library

Description

Bichromate cells such as this could be joined together to make a battery. The plates of carbon and zinc react with the chromic acid in the glas jar, transferring a stream of electrons from the zinc to the carbon.
 

Image Ref.

10193575
 

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