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 368
*» 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.… … i piece of bread, in which case the swan seems desirous of feedingupon the bread. The Coercive Force. 350o The force required to separate the two fluids in amagnetic body is called the Coercive Force. The fluids are not separable with equal ease in all bodies.In some, as, for example, in soft iron,…
Physics
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