The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 203
two wires with blunt ends, about an eighth of an inch separate.Connect one of these with the positive wire leading from theglass tube, and the other with the other wire, and fill the cupwith fine powder. These may be arranged before the audienceassemble; and, during the lecture, a jar, placed upon… … 198 MECHANICAL EFFECTS OF ELECTRICITY. A strong tin canister may be filled with explosive gas, andfired in the same unexpected manner; the use of the glasstube, however, being unnecessary for this. The Galvanic Pistol, Fig. 191, Galvan-^■^^ ic Electricity, may be arranged for firing byelectricity.…
Physics
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