Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 259
a glass support and connected with theprime conductor of an Electrical Machine.The glass support also has a bell which isconnected with the earth. A series of smallclappers are supported by silk thread sothat they can play back and forth betweenthe outside bells and the middle one. Whenthe machine… … Fig. 2% 84:5. Electrical Wind. The effect of a point is well shownby a point placed upon the prime conductor. Workingthe machine, a wind is felt by the hand moving from thepoint, caused by the discharge of electricity into the air.The flame of a candle is turned away from the point. Theelectricity…
Physics
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