Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 471
different substances when rubbed to-gether generate static electricity. Some sub-stances generate it better than others. Those thatwe have used in our experiments generate itreadily. HOW TO make an electroscope An electroscope is a simple instrument for de-tecting electric charges. Cut a piece of… … inches apart. Cut off all loose ends of silk andthen support the thread at the center on an in-sulating stand, as shown in figure i B. The standis made of a piece of bent wire fastened to av\Ooden base. Our electroscope is now complete. Experiment 3. Rub your glass rod once morewith the piece of…
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