A long, long time ago, before electricity, fire was the only weapon against darkness. Ancient civilizations made use of torches but by 4500 B.C. oil lamps made out of shells or hollow rocks were in...
Way back in 1802, Humphrey Davy, one of the most brilliant chemists of all time, became interested in the novel phenomenon of electricity. By this time he had already published a treatise on the...
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