Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 370
kets and charms,and occasionally they were fitted to finger rings made toreceive them. MAGNETISM. 347 CHAPTER XVI. MAGNETISM. Nature furnishes permanent magnets ready made, thelodestone being an example of such a magnet. She is ableto induce magnetism in magnetic bodies, the earth itselfbeing the… … Magnetism by Induction from the Earth. long exposure to the inductive influence of the earths mag-netism. Any body of magnetic material becomes tempora-rily magnetized to some extent when placed in the magneticmeridian parallel with the dipping needle, and if it be a bodylike soft iron, withovit…
Physics · Lantern projection · Electric apparatus and appliances
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