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‎DAVY, HUMPHREY. - THE RELATION BETWEEN TEMPERATURE AND CONDUCTIVITY DISCOVERED.‎

Reference : 43173

(1821)

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‎Farther researches on the magnetic phaenomena produced by electricity" with some new experiments on the properties of electrified bodies in their relations to conducting powers and temperature. ReadJuly 5, 1821.‎

‎(London, W. Bulmer and W. Nicol, 1821). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1821 - Part II. Pp. 425-439. Clean and fine.‎

‎First printing of an importent paper in which Davy announces his discovery that the conductivity of metals varies inversely with temperature. This discovery receives a practical application half a century later when William Siemens uses it to invent the platinum-resistance thermonmeter to measure temperature. - Parkinson ""Breakthroughs"", 1821 P a. 1971 P.‎

Herman H. J. Lynge & Son - Copenhagen
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DKK2,000.00 (€268.24 )
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