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Harris's balance electrometer, 1834.

Harris's balance electrometer, 1834.
4 0 c m
actual image size: 26cm x 32cm


Snow Harris designed this instrument in 1834 to compare the quantity of electricity imparted to a substance with its attractive power. In an experiment similar to Petrus van Muschenbroek's concerning magnetism a century before in 1725, he weighed the force of the electric attraction on a balance. The instrument was nade by J Newman.

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