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 240
d even to a boilingheat. Experiment h. —Place in the Powder-Cup^ Fig. 190, some fine powder, and con-nect its wires with thepoles of a Sulphateof Copper Battery ;the passage of even afeeble current acrossthe fine platinumwire, which joins theirends within the cup,will so heat this wire as to… … Fig. 191.
Physics
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