Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 729
;>:-^^-irv> \r<\^found to arrange them-selves in thread-likecurved lines, stretchingfrom pole to pole (fig.679). These lines formwhat are called magneticcun>cs. The direction ofthere permanent, the paper which they are formed Fig. 679 should be waxed ; if then a hot iron plate is held… … 7IO On Magnetism [700- them a sheet of paper coated with paste, which is then gently pressed andhfted off: it should be quickly dried to prevent the iron from rusting. These curves are a graphic representation of the law of magnetic attrac-tion and repulsion with regard to distance; for under the…
Physics
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