Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 398
the top and the bottom,while in the horizontal diameter thev are repelled. Whendriven in the reverse direction, the opposite action takesplace. EXPERIMENTS WITH THE INDUCTION MACHINE. The appearance of the spark when the two conductors areseparated only a short distance is shown in Fig. 361. It…
Physics · Lantern projection · Electric apparatus and appliances
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