Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 386
Tliatis, when the paper is stretched out the leaves will diverge,and when it is closed up they will fall together, showingthat in the latter case the electricity is masked. There are many other interesting experiments that maybe tried with the electroscope in connection with simpleobjects that may… … oc/iMiir Ano-Kato. with a piece of ordinary window glass, and containing fig-ures made of pith. By rubbing the glass with a leather pad charged withbisulphide of tin, the electrical equilibrium is disturbed,and the figures are attracted and repelled, and made to gothrough all sorts of gymnastics.…
Physics · Lantern projection · Electric apparatus and appliances
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