Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 401
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. … Glow at the Negative Collector. of the glass, and connected with the machine b}- large wires.Unless chains with soldered links can be procured, wires orrods with rounded ends are preferable for making electricalconnections, as chains afford numerous points for escape ofslectricitv- FRICTIONAL…
Physics · Lantern projection · Electric apparatus and appliances
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