The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 160
over abar-magnet, these will be found to adhere about the ends,themselves in a certain order, as seen by Fig.120. These extremities, wherethe magnetic action seems con-centrated, are termed the polesof the magnet. Let a magnetized bar or needleof steel or iron be suspended bya thread, or balanced… … Were the properties of the Magnet known to the ancients ? Origin of theterm Magnet? What is said of the power of lodestone in reference to the form-ation of Artificial Magnets ? What does Fig. 120 show ? What are the polesof the magnet? How will a magnetized bar, free to move, arrange itself? THE…
Physics
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