Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 382
the fieldabout a bar-magnet,while Fig. 452 shows it about similar poles of two bar-magnets .-,.^ ■ standins: on end. The magnetic force,as we have seen, isgreatest in the neigh-bourhood of the poles,and here the curvesshown by the filingsare closest together.Thus the direction of… … Fig. 452.—Field of force of two unlike poles. 372 MAGNETISM There are several ways of makiug these filings figures per-manent. Some photographic process gives the best results, but aconvenient way is to produce the figures on paper which has beendipped in melted parafiin, and then to heat the…
Physics
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.
