Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 42
final result, provided whenK touches P it is well under cover. 22 HAWKINS ELECTRICITY for it cannot be called into existence without the expenditureof some other form of energy. The fact is, more work is donein lifting the cover when it is charged with the positive electricitythan when it is not… … Figs. 30 and 31.—The Leyden jar and discharger. Its discovery is attributed to the attempt ofMusschenbrock and his pupil Cuneus to collect the supposed electric fluid in a bottlehalf filled with water. The bottle was held in the hand and was provided with a nail tolead the fluid down through the…
Electrical engineering
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