Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
pendit again to the magnet, and place the bar of iron, E, on the top of themagnet, which, of course, will be magnetized by the contact. Whilethe bar, E, remains in this position, more weight than before is requiredto separate the small bar, H, from the magnet. This not only shows that the magnet…
Physics · Astronomy
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