Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 401
arious courses o\er the filings, and when the machineis arranged for the silent discharge, the brilliancy of the sparkis diminished, while the rapidity of the discharge is greatlyincreased. The support shown in Fig. 367 is convenient for exhibit- 378 EXPERIMENTAL SCIENCE. ing this class of… … Glow at the Positive Collector. knobs are sufficiently long to receive a tube or anything ofthat nature which it is desired to exhibit. To conveniently connect the luminous panes with themachine, two U-shaped springs may be clasped on the edges Fig. 370.
Physics · Lantern projection · Electric apparatus and appliances
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