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Canton, John, 1718-1772.
John Canton papers, 1740-1772.
Diaries.
Natural philosopher. Calculated times of lunar eclipses that were published in the 'Ladies Diary' for 1739 and 1740; invented new method of making strong artificial magnets for which he was awarded the Royal Society's Copley Medal in 1751. First in England to successfully repeat Franklin's experiments with lightning; in the process discovered independently that clouds became electrified both positively (as theory suggested) and negatively. Subsequently designed experiments on electrostatic induction earning him a place in the history of electricity. As a gifted amateur physicist, his diverse interests included luminosity of seawater; phosphorescence; keeping a meteorological journal; diurnal variations of the compass; compressibility of water. For demonstrating the latter he received a second Copley Medal in 1765.
Meteorology -- History.
Meteorology -- Observations -- England -- 18th century.
Natural philosophy.
Physics -- 18th century.
Diaries lcgft
Journals. aat ftamc
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Royal Society. 6 Carlton House Terrace, London SW1Y 5AG, England Uk
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