Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 367
thus formed adhere to each other, as shown inFig. 240. If the bar be removed, the rings cease to bemagnets, the chain falls to pieces, and the rings separate.This mode of exciting magnetic phenomena is called mag-netizing by induction. According to the theory of twofluids, it is in consequence of… … *» Fig. 241 represents a common childs toy. A small swan madeof glass has a piece of iron in its head, and on presenting to it amagnet, the swan approaches it, swimming along the surface of thewater upon which it is placed. The magnet may be concealed in a How are magnets produced ? Illustrate.…
Physics
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