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 Date: 2013-09-13 09:23:20Physical quantities Electromagnetism Magnetostatics John Michell Magnet Petrus Peregrinus de Maricourt Henry Cavendish Torsion spring Cavendish experiment Physics Fellows of the Royal Society Magnetism |
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John Michell[removed]): Father of Magnetometry? by Jim Grozier 1. Introduction In 1910 Sir Edmund Whittaker said of Michell: “The century which elapsed between the death of Newton and the scientific activity of Green [