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2019-11-06 08:58:52
AMPERE, Andre-Marie.
Mémoires sur l'action mutuelle de deux courans électriques, sur celle qui existe entre un courant électrique et un aimant ou le globe terrestre, et celle de deux aimans l'un sur l'autre.
[Paris: Feugeray, 1821?]. First edition. First edition, probable first issue, extremely rare and inscribed by Ampère, of this continually evolving collection of important memoirs on electrodynamics by Ampère and others. "Ampère had originally intended the collection to contain all the articles published on his theory of electrodynamics since 1820, but as he prepared copy new articles on the subject continued to appear, so that the fascicles, which apparently began publication in 1821, were in a constant state of revision, with at least five versions of the collection appearing between 1821 and 1823 under different titles" (Norman). The collection begins with 'Mémoires sur l'action mutuelle de deux courans électriques', Ampère's "first great memoir on electrodynamics" (DSB), representing his first response to the demonstration on 21 April 1820 by the Danish physicist Hans Christian Oersted (1777-1851) that electric currents create magnetic fields; this had been reported by François Arago (1786-1853) to an astonished Académie des Sciences on 4 September. In this article he "demonstrated for the first time that two parallel conductors, carrying currents traveling in the same direction, attract each other; conversely, if the currents are traveling in opposite directions, they repel each other" (Sparrow, Milestones, p. 33). This first paper is mostly phenomenological, but it is followed here by the important and much more mathematical sequel, 'Additions au mémoire précédent - note sur les expériences électro-magnétiques de MM. Oersted, Ampère, Arago et Biot,' in which Ampère gav … [Click Below for Full Description]
Bookseller: SOPHIA RARE BOOKS [Denmark]

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