Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 29
oles when magnets are packedaway (Fig. 12). Each armature becomes by induction amagnet, and acts back by induction on the magnet poles towhich it owes its magnetic character, tending to preventtheir magnetism from dissipating under accidental jars or theinduction of neighbouring magnets. It is even… … Fig. 12. 8. Hypothesis of Magnetized Molecules.—We willnow inquire whether the two magnetisms developed at andnear the ends of a magnet are wholly confined to those parts.To answer this question we will break a magnet in halves.The knitting-needle magnetized in a previous experiment willanswer…
Electricity
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