Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 429
ng to this theory, the act of rendering a body magnetic consistssimply in decomposing a fluid pervading it, we can easily understand ho^\;by means of one artificial magnet, an infinite number of other magnets maybe made, without the former losing any of its magnetic properties. ^,t i, ^ 796. The… … Such a needle, when properly balanced, will beobserved to vibrato more or less, until it settles insuch a direction that one of its extremities, orpoles, points toward the north, and the other to-ward the south. If the position of the needle boaltered or reversed, it will always turn and…
Physics · Science · Technology
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