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3. On Earth-Currents during Magnetic Calms, and their Connection with Magnetic Changes

Published online by Cambridge University Press:  15 September 2014

Balfour Stewart
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Extract

In two previous communications made by the author to the Royal Society of London, it had been endeavoured to show that earth currents and auroræ, which occur simultaneously with magnetic storms, are secondary currents due to the small but abrupt changes in the magnetism of the earth which such storms denote. Earth-currents also occur during periods of magnetic calm, but they can then be rendered visible only by means of a delicate galvanometer.

Type
Proceedings 1862-63
Information
Proceedings of the Royal Society of Edinburgh , Volume 5 , 1866 , pp. 112 - 113
Copyright
Copyright © Royal Society of Edinburgh 1866

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