A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 310
causing a constant current from the point. vantage of this fact, what beautiful experiments may be performed ? 793. For whais the Electrical Pistol used? Describe this instrument, and the experiment per-formed with it. 794. Why, in electrical machines, are metallic points connected withthe prime… … 795. The Phosphorus Cup.—Aninteresting experiment, showingthe passage of an electric current,may be performed with the appara-tus represented in Fig. 283, knownas the Phosphorus Cup. Two brasscups insulated on glass pillars areplaced at the same height, abouttwo inches apart, with a lighted can-dle…
Physics
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