Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 65
blue light will appear at the point. If a lighted taperbe held in front of the point,the flame will be visibly blo^^^laside (Fig. 26) by the streamsof electrified air repelled fromthe point. These air-currentscan be felt with the hand.They are due to a mutual re-pulsion between the… … Fig. 27. a light cross of brass or straw, suspended on a pivot. 48 ELEMENTARY LESSONS ON [chap. i. and having the pointed ends bent round at rightangles. When placed on the prime conductor of themachine, or joined to it by a chain, the force ofrepulsion between the electricity of the points and…
Electricity · Magnetism
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