Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 653
ield. cemented to a second plate of glass. The iron particlesarrange themselves in a more pronounced figure if theglass plate upon which they are sprinkled be jarred sHghtly.In Fig. 607 is shown a method of forming magnetic curvesfor projection in which the iron particles slowly arrange 6^o… … Magnetic Field. fine iron filings. In the top of the cell are inserted two softiron pole pieces, arranged to receive the poles of a perma-nent magnet. The glycerine is thoroughly agitated, so as to Fir,. 60S.
Physics · Lantern projection · Electric apparatus and appliances
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