. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig. Fig. the properties of an ordinary magnet. It has a north and south pole. Itattracts iron filings around these poles, just like the regular magnet. Ifanother piece of soft iron is brought in contact with or near to its poles,it is attracted and made to adhere, just as it would do if applied to an ordinary magnet. Quite a number of bars of soft iron (Fig. 3) may be madeto adhere in the same way. But when this bar, thus made magnetic, isforcibly removed f
. The medical and surgical uses of electricity : including the X-ray, Finsen light, vibratory therapeutics, and high-frequency currents . Fig. Fig. the properties of an ordinary magnet. It has a north and south pole. Itattracts iron filings around these poles, just like the regular magnet. Ifanother piece of soft iron is brought in contact with or near to its poles,it is attracted and made to adhere, just as it would do if applied to an ordinary magnet. Quite a number of bars of soft iron (Fig. 3) may be madeto adhere in the same way. But when this bar, thus made magnetic, isforcibly removed from the permanent magnet to which it adheres, it in-stantaneously loses all its magnetic power, and the iron filings or piecesof soft iron that have been attracted by it at once drop off. Such a mag-net is therefore styled temporary, in contradistinction to the permanentmagnets of steel. If a bar of steel is brought near to, or in contact with, a magnet, it alsobecomes magnetic, and exhibits very different phenomena from the bar ofsoft iron. In the first place it becomes magnetic much more slowly than SHAPE OF MAGNETS. 5 the bar of
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Keywords: ., bookauthorrockwell, bookcentury1900, bookdecade1900, bookyear1903
