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See also:MICHELL, See also:JOHN (1724-1793) , See also:English natural philosopher and geologist, was See also:born in 1724, and educated at Queens' See also:College, See also:Cambridge. His name appears See also:fourth in the Tripos See also:list for 1748-1749; and in 1755 he was See also:moderator in that examination. He became M.A. in 1752, and B.D. in 1761. He was a See also:fellow of his college, and was appointed Woodwardian See also:professor of See also:geology in 1762, and in 1767 See also:rector of See also:Thornhill in See also:Yorkshire, where he died on the 29th of See also:April 1793. He was
elected a fellow of the Royal Society in the same See also:year as See also:- HENRY
- HENRY (1129-1195)
- HENRY (c. 1108-1139)
- HENRY (c. 1174–1216)
- HENRY (Fr. Henri; Span. Enrique; Ger. Heinrich; Mid. H. Ger. Heinrich and Heimrich; O.H.G. Haimi- or Heimirih, i.e. " prince, or chief of the house," from O.H.G. heim, the Eng. home, and rih, Goth. reiks; compare Lat. rex " king "—" rich," therefore " mig
- HENRY, EDWARD LAMSON (1841– )
- HENRY, JAMES (1798-1876)
- HENRY, JOSEPH (1797-1878)
- HENRY, MATTHEW (1662-1714)
- HENRY, PATRICK (1736–1799)
- HENRY, PRINCE OF BATTENBERG (1858-1896)
- HENRY, ROBERT (1718-1790)
- HENRY, VICTOR (1850– )
- HENRY, WILLIAM (1795-1836)
Henry See also:Cavendish (176o). In 1750 he published at Cambridge a See also:work of some eighty pages entitled A See also:Treatise of Artificial Magnets, in which is shown an easy and expeditious method of making them See also:superior to the best natural ones. Besides the description of the method of magnetization which still bears his name, this work contains a variety of accurate magnetic observations, and is distinguished by a lucid exposition of the nature of magnetic See also:induction. He was the See also:original inventor of the torsion See also:balance, which afterwards became so famous in the hands of its second inventor See also:Coulomb. Michell described it in his proposal of a method for obtaining the mean See also:density of the See also:earth. He did not live to put his method into practice; but this was done by Henry Cavendish, who made, by means of Michell's apparatus, the celebrated determination that now goes by the name of Cavendish's experiment (Phil. Trans., 1708). His most important See also:geological See also:essay was that entitled Conjectures concerning the Cause and Observations upon the Phaenomena of Earthquakes (Phil. Trans., li. 176o), which showed a remarkable knowledge of the strata in various parts of See also:England and abroad.
Michell's other contributions to See also:science are: " Observations on the See also:Comet of See also:January 176o at Cambridge, Phil. Trans. (176o) ; " A Recommendation of See also:Hadley's Quadrant for See also:Surveying," ibid. (1765) ; " Proposal of a Method for measuring Degrees of See also:Longitude upon See also:Parallels of the See also:Equator," ibid. (1766) ; " An Inquiry into the Probable See also:Parallax and Magnitude of the Fixed Stars," ibid. (1767); " On the Twinkling of the Fixed Stars," ibid. (1767), " On the Means of Discovering the Distance, Magnitude, &c., of the Fixed Stars," ibid. (1784).
End of Article: MICHELL, JOHN (1724-1793)
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