A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 343
t are sometimes found in very long bar magnets ? 866. What is the effectof adding a little daily to the weight which a magnet supports ? Give an example.What is the effect of overloading a magnet ? Of treating it roughly ? Of heating it ?867. Is air essential to the action of a magnet ? Prove it.… … MAGNETIC CURVES. FlS- 307. Hold a piece of paper over a bar magnet, and dust on it someiron filings. Under the influenceof the magnetic attraction trans-mitted through the paper, theywill arrange themselves in regu-lar lines, as shown in Fig. 307.These lines are called MagneticCurves.—The superior…
Physics
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