Stewart, Balfour, 1828-1887 · Toronto : James Campbell · leaf 117
eof warm, dry flannel, and bring the stick so rubbed io8 SCIENCE PRIMERS. [electrifiein near to the pith ball. It will now be found that thepith ball, which was repelled by the excited glass, willbe attracted to the excited sealing-wax. It thus appears that a pith ball first touched withexcited… … Fig. 39- ing-wax, instead of excited glass, it would then havebeen repelled by excited sealing-wax, but attracted byexcited glass. We learn from this that there are two kinds of elec-tricity ; namely, that which we get from excited glass,and that which we get from excited sealing-wax. Now when we…
Physics
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