Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 160
Figure 134. — Arrangement of Mole-cules in a Magnetized Piece of Iron. Figure 135. — Unbal-anced Forces in a Mag-netized Piece of Iron. 1. They have direction and always come out of a X-poleand go in at a S-pole, completing a loop inside the magnet. … Figure 136. — How to Magnetize a Piece of Iron. 2 They have a tendency to contract, like rubber bands,and will contract until they are zero in length. 3. They repel one another laterally. 130. Theory of Magnetism. — Some substances are saidto be magnetic, while others are non-magnetic. Magnetic
Physics
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