‎"POISSON, (SIMÉON-DENIS). - THE PREAMBLE.‎
‎Théorie mathématique de la Chaleur. (Cet article est le préambule d'un ouvrage actuellement sous presse, et qui paraitra incessamment).‎

‎(Berlin, G. Reimer, 1834). 4to. No wrappers. Extracted from ""Journal für die reine und angewandte Mathematik. Hrsg. von A.L. Crelle"", Bd. XII. Pp. 258-262.‎

Reference : 47207

‎First apperance of Poisson's preamble to his famous work ""Théorie mathématique de la Chaleur"", published 1835. “Poisson scored a point in this work by demonstrating how the conductibility of heat in the interior of bodies, far from being contained in the notion of flux as Fourier had held, must be derived from an absorption coefficient that restores a neglected functional dimension. It was in this area that … Poisson’s mechanical model for conduction of heat was the most fruitful. That conception enabled Poisson to understand on the molecular scale the complete and correct equation for radiation of heat” (DSB)‎