William Thomson

2021 ◽  
pp. 279-288
Author(s):  
Youngsub Chun ◽  
Christopher P. Chambers
Keyword(s):  
William Thomson

4. Concluding Remarks

1875 ◽  
Vol 8 ◽  
pp. 390-414
Author(s):  
David Milne Home
Keyword(s):  
William Thomson

I have been requested by our Secretary to announce formally from the Council, that this is the last meeting for the Winter Session.You will have seen from the billet, that our President, Sir William Thomson, was to have been in the chair to-night, and to have closed the session with some remarks suitable to the occasion.

scholarly journals primeira teoria matemática da propagação elétrica

2018 ◽  
Vol 11 (2) ◽  
pp. 267-287
Author(s):  
Danny Augusto Vieira Tonidandel ◽  
Wallace do Coutro Boaventura ◽  
Antônio Emílio Angueth de Araújo
Keyword(s):  
William Thomson

Este trabalho tem como focos principais um evento singular ocorrido em meados do século XIX – o lançamento do primeiro cabo para comunicações (elétricas) intercontinentais, o grande “cabo transatlântico” – e um artigo igualmente singular, em que a primeira teoria matematicamente consistente que visava “explicar” como a eletricidade poderia ser transmitida por um condutor foi elaborada por William Thomson (futuro Lorde Kelvin), intitulado “On the theory of the electric telegraph” [Sobre a teoria do telégrafo elétrico], de 1854. Nele foi apresentada uma analogia na qual considerava-se a eletricidade como um fluido que se difundia através do cabo, a exemplo do que havia feito Fourier, anos antes, no problema da condução de calor. Como forma de investigar mais a fundo as relações e analogias entre a formação dos conceitos de eletricidade e calor, apresenta-se uma tradução detalhadamente comentada do referido artigo, que os autores acreditam ter sido um dos motores da grande revolução tecnológica que seria vista no século seguinte.

Charles Darwin's Manuscript of Pangenesis

1963 ◽  
Vol 1 (3) ◽  
pp. 251-263 ◽  
Author(s):  
R. C. Olby
Keyword(s):  
Evolutionary Theory ◽  
Theory Of Evolution ◽  
William Thomson ◽  
Lord Kelvin ◽  
Short Time

Darwin only published one account of his provisional hypothesis of pangenesis, and that is to be found in chapter xxvii of his book The Variation of Animals and Plants under Domestication, the first edition of which is dated 1868. The absence of any earlier account in Darwin's works has led some to assume that he had recourse to this hypothesis only a short time before the published date of the book containing it, and on the basis of this assumption they have asserted that he produced it as a part of his defence of the theory of evolution against the criticisms made of it by the physicists Sir William Thomson, afterwards Lord Kelvin, and Fleeming Jenkin. But to make such an assertion is to ignore the fact that Darwin had already sent his manuscript of pangenesis to Huxley in the year 1865, two years before Fleeming Jenkin's article appeared and three years before Lord Kelvin openly attacked the evolutionary theory. The discovery of this manuscript of pangenesis has, therefore, some importance, for it should reveal Darwin's conception of pangenesis in 1865.

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