Gulielmus Thomson, baro Kelvinus

Haec pagina de Barone Kelvino disserit. Si de unitate Kelvino quaeres, vide Kelvinus (unitas).

Gulielmus Thomson, primus baro Kelvinus^[1] (natus Belfasti die 26 Iunii 1824; mortuus die 17 Decembris 1907), physicus, mathematicus, et ingeniarius Britannicus, hodie praeclarissimus non solum quia gradus temperaturae absolutae excogitavit,^[2] sed etiam quia analysim mathematicam scientiarum electromagneticae et thermodynamicae saeculi undevicensimi maxime ingreditur. Et enerigiam cineticam nominatvit.

Anno 1851 priscam formam secundae legis thermodynamicae his verbis statuit:

Non est possibile, nisi facultas immaterialis intercedit, phaenomenon mechanicae derivare e cuiusquam materiae parte quam frigescimus sub frigidissima tempuratura corporum circumpositorum.^[3]

Suis cum Iacobo Ioule operis de caloris natura annos 1852-1856 theoriam cineticam caloris magnopere statuit.^[4] Annos 1855-1856 Thomson quoque cum Petro Guthrie Tait collaboravit et scripsit suorum magnum "Detractatus de Philosophia Naturali" qui novam disciplinam physicae unificabat sub sententia energiae.^[5]

Opera

Thomson, W. 1882–1911. Mathematical and Physical Papers. 6 vol. Cantabrigiae: Cambridge University Pres. ISBN 0-521-05474-5.

Nexus interni

Notae

↑ Cfr. Regalis Societas Londini (1913). The celebration of the two hundred and fiftieth anniversary of the Royal Society of London, July 15-19, 1912. London: Oxford University Press. p. 91 : "quanto opere desideratur e physicis Kelvinus ... !".
↑ W. Thomson, "On an absolute thermometric scale founded on Carnot's theory of the motive power of heat, and calculated from Regnault's observations," Mathematics and Physics Papers 1, 100-106 (1848).
↑ Anglice: "It is impossible, by means of inanimate material agency, to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects," W. Thomson, "On the dynamical theory of heat; with numerical results deduced from Mr. Joule's equivalent of a thermal unit and M. Regnault's observations on steam," Math. and Phys. Papers 1 (1851). p. 179.
↑ W. Thomson, "On the thermal effects of fluids in motion, " Math. and Phys. Papers 1, pp. 333-455 (1856).
↑ W. Thomson et P. G. Tait, Treatise on Natural Philosophy, Oxford, 1867.

[1] Cfr. Regalis Societas Londini (1913). The celebration of the two hundred and fiftieth anniversary of the Royal Society of London, July 15-19, 1912. London: Oxford University Press. p. 91 : "quanto opere desideratur e physicis Kelvinus ... !".

[2] W. Thomson, "On an absolute thermometric scale founded on Carnot's theory of the motive power of heat, and calculated from Regnault's observations," Mathematics and Physics Papers 1, 100-106 (1848).

[3] Anglice: "It is impossible, by means of inanimate material agency, to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects," W. Thomson, "On the dynamical theory of heat; with numerical results deduced from Mr. Joule's equivalent of a thermal unit and M. Regnault's observations on steam," Math. and Phys. Papers 1 (1851). p. 179.

[4] W. Thomson, "On the thermal effects of fluids in motion, " Math. and Phys. Papers 1, pp. 333-455 (1856).

[5] W. Thomson et P. G. Tait, Treatise on Natural Philosophy, Oxford, 1867.

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