Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 12
dry warmglass tube, excited byrubbing it briskly witha silk handkerchief,will attract the pith-ball strongly, showingthat it is highly electri-fied. The most suit-able rubber, if a stickof sealing-wax is used,will be found to beflannel, woollen cloth, or, best of all, fur. Boyle discovered *… … Fig. 3. chap, i ELECTRIFICATION BY FRICTION 5 that an electrified body is itself attracted by one thathas not been electrified. This may be verified (seeFig. 3) by rubbing a stick of sealing-wax, or a glassrod, and hanging it in a wire loop at the end of a silkthread. If, then, the hand be held out…
Electricity
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