13.579 risultati
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rif. SONG0521195470Used: Good unknown
1821rif. 59163London Baldwin Cradock and Joy 1821. Contemp. Hcalf. Minor scratches to spine. In: "Annals of Philosophy; or Magazine of Chemistry Mineralogy Mechanics Natural History. By Thomas Thomson." New series Vol. I. VIII479 pp. a. 7 engraved plates. Entire volumes offered. Herapath's papers: pp. 273-293 340-351 a. 401-416. First printing of these contoversial papers where Herapath revived the kinetic theory of gases. His theory was more or less neglected by the scientific community at his time. The kinetic theory remained dormant and forgotten after Euler's and Bernouilli's work "until 1816 when Herapath proposed a theory which is essential Bernoulli's. Unfortunately he chose to define temperature as being proportional to the momentum rather than the kinetic energy of molecules. Herapath was the first to show more or less that kinetic theory can provide simple explanations for the changes of state diffusion and the propagation of sound."Trousdell "Essayas in the History of Mechanics" pp. 283 ff. unknown
1839rif. 59127Paris Crochard 1839. Entire October-issue with original printed yellow wrappers wrappers loose. In:"Annales de Chimie et de Physique Par MM. Gay-Lussac et Arago." tome 72 Series 2. Entire volume octobre-issue offered. Pp. 113-222. Gerhardt's paper: pp. 184-214.Clean and fine. First printing of a classic paper in organic chemistry in which Gerhardt breaks with the conceptions of dualism and pre-existing radicals and sets forth his "Theory of Residues". The October-issue also contains Gerhards paper "Recherches chimiques sur l'Hellénine" pp. 163-183. A subject for his doctoral thesis in 1840. "A new aspect was given to the substitution-type theory by Gerhardt who explained the formation of organic compounds as due to "pairing" or "copulation" of residues."Findlay "A Hundred years of Chemistry" p. 30 ff. unknown
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