Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 236
226 ELECTEICITY. Names of the Poles. A magnet suspended so as to swingfreely, comes to rest pointing north and south. The endwhich points towards the north is called the North Pole, andthe other the South Pole. Imperfect magnets frequentlyhave poles between the ends, separated by neutral… … Fig. 270. If the north pole of a magnet bebrought towards the north poleof another which is suspended,Fig. 270, the suspended magnetmoves away from the other.But if the south pole be pre-sented to the north pole, thesuspended magnet moves to-wards the other. The same series of exper-iments may be…
Physics
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