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1. On the Investigation of Magnetic Intensity, by the Oscillations of a Horizontal Needle

Published online by Cambridge University Press:  16 March 2015

William Snow Harris
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Extract

The chief disturbing causes by which the magnetic intensity, as ascertained by the oscillations of the horizontal needle, are affected, are 1. Variations in the air in which they are performed; 2. The influence of changes in the mechanical conditions incidental to the mode of suspending the needle; 3. Changes in the disposition and intensity of the magnetism of the needle from heat and other causes.

Type
Proceedings 1833–34
Information
Proceedings of the Royal Society of Edinburgh , Volume 1 , 1845 , pp. 39 - 40
Copyright
Copyright © Royal Society of Edinburgh 1844

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