Lord Kelvin citáty

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Lord Kelvin

Datum narození: 26. červen 1824
Datum úmrtí: 17. prosinec 1907
Další jména:Lord William Thomson Kelvin,William Kelvin,William Thomson, 1. Baron Kelvin

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William Thomson, známý spíše pod svým šlechtickým jménem lord Kelvin of Largs, byl skotský fyzik a jeden z nejvýznačnějších fyziků.

Citáty Lord Kelvin

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„I have not the smallest molecule of faith in aerial navigation other than ballooning“

— William Thomson
Context: I am afraid I am not in the flight for “aerial navigation”. I was greatly interested in your work with kites; but I have not the smallest molecule of faith in aerial navigation other than ballooning or of expectation of good results from any of the trials we hear of. So you will understand that I would not care to be a member of the aëronautical Society. As a [http://zapatopi.net/kelvin/papers/letters.html#baden-powell response to Major B. F. S. Baden Powell's request to join the Aeronautical Society, December 8, 1896]. Often reproduced out of context and without citation to any primary source as "Heavier-than-air flying machines are impossible", like in The Experts Speak : The Definitive Compendium of Authoritative Misinformation (1984) by Christopher Cerf and Victor Navasky, p. 236

„The beauty and clearness of the dynamical theory, which asserts heat and light to be modes of motion, is at present obscured by two clouds.“

— William Thomson
Context: The beauty and clearness of the dynamical theory, which asserts heat and light to be modes of motion, is at present obscured by two clouds. I. The first came into existence with the undulatory theory of light, and was dealt with by Fresnel and Dr. Thomas Young; it involved the question, how could the earth move through an elastic solid, such as essentially is the luminiferous ether? II. The second is the Maxwell–Boltzmann doctrine regarding the partition of energy. From a 1900, April 27, , Sixth Series, 2, 1–40 (1901).

„There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.“

— William Thomson
Misattributed to Kelvin since the 1980s, either without citation or stating that it was made in an address to the in 1900. and the quote is instead a paraphrase of Albert A. Michelson, who in 1894 stated: "… it seems probable that most of the grand underlying principles have been firmly established … An eminent physicist remarked that the future truths of physical science are to be looked for in the sixth place of decimals."

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„To live among friends is the primary essential of happiness.“

— William Thomson
Lord Kelvin’s Replies to Addresses given on the Celebration of the Jubilee of his Professorship (June 15-17, 1896). Quoted in [http://historical.library.cornell.edu/cgi-bin/cul.math/docviewer?did=03620002 Lord Kelvin, Professor of Natural Philosophy in the University of Glasgow 1846-1899 (1899) by George F. Fitzgerald]

„Symmetrical equations are good in their place, but 'vector' is a useless survival, or offshoot from quaternions, and has never been of the slightest use to any creature.“

— William Thomson
Letter to G. F. FitzGerald (1896) as quoted in A History of Vector Analysis : The Evolution of the Idea of a Vectorial System (1994) by Michael J. Crowe, p. 120<!-- also quoted in Vector Calculus (1976) by Jerrold E. Marsden and Anthony J. Tromba -->

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„Mathematics is the only true metaphysics.“

— William Thomson
As quoted by Silvanus Phillips Thompson, The Life of William Thomson, Baron Kelvin of Largs (1910) [https://books.google.com/books?id=S_PPAAAAMAAJ Vol. 2], p. 1124

„Quaternions came from Hamilton after his really good work had been done, and though beautifully ingenious, have been an unmixed evil to those who have touched them in any way.“

— William Thomson
Letter to Robert Baldwin Hayward (1892), as quoted in Energy and Empire : A Biographical Study of Lord Kelvin (1989) by Crosbie Smith and M. Norton Wise

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