rs, waspublished in 1600, and for the next hundred years became thestandard work on magnetism. Though denounced by theChurch, the theory of terrestrial magnetism was by Gilbert thusfirmly established on an enduring basis of fac5l, and remained apermanent acquisition in science. The publication of… … THE ELECTRICAL KNOWLEDGE OF THE ANCIENTS. RIOR to Gilberts time the only eledlricalphenomenon known generally was the simplefadl that the minerals amber and jet, whenrubbed, will attract light bodies. This pro-perty of amber was indeed known to theancients, and is mentioned by Theophrastus.The…
Magnetism · Electromagnetic Phenomena
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