‎VERDET (M.)‎
‎Exposé de la théorie mécanique de la chaleur présenté à la Société chimique de Paris le 7 et 21 Février 1862. in Leçons de chimie et physique professée en 1862‎

‎P., Hachette, 1863; . P., Hachette, 1863; in 8, 179pp., demi-basane bordeaux, dos orné de fers et filets dorés. Edition originale. Verdet was one of the outstanding physics teachers of mi-nineteenth-century France, holding professorships at the Ecole normale supérieure, the Ecole Polytechnique and the Faculté des sciences in Paris. He introduced into the French scientific world the thermodynamics of Joule, Clausius, Helmholtz and William Thompson and conducted important experiments on the effects of a magnetic field on plane-polarized light. Verdet educated his colleagues as well as his students. French physicists of his time were ignorant of much of the research going on outside their country, so Verdet undertook to publish abstracts of the most important articles appearing in foreing journals. From 1852 to 1864 every volume of the Annales de chimie contained ten or more of this synopses... In 1864/1865 he taught the new thermodynamics and the notes from his course were compiled by two students and published as La théorie mécanique de la chaleur, a textbook which has become a classic... His early research included a series of experiments on electromagnetic induction and a theoretical treatise on the image-forming power of lenses. In his major effort Verdet investigated the phenomenon now known as the Faraday effect ... He studied the dependence of the Faraday effect on the strength of the magnet causing the rotation, the medium in which the light is traveling, and the color of the light. he found that the magnetic power of rotation was directly proportional to the square of the wavelengh of the light and related the index of refraction of the material. In recognition of the importance of this work a measure of the power of magnetic rotation was named Verdet's constant . (DSB XIII pp. 614/615). Equation du travail ou des forces vives - Du frottement - Chaleur produite par le frottement - Identité fondamentale de la chaleur et de la force vive - Expériences de M. Joule - Première notion de l'équivalent mécanique de la chaleur - De la machine à vapeur (expériences de M. Hirn, nouvelle détermination de l'équivalent mécanique de la chaleur...) - Démonstration générale et énoncé du principe de l'équivalence de la chaleur et du travail mécanique ou de la force vive - Action de la chaleur sur les corps - Etude spéciale des gaz - Formule qui exprime l'équivalent mécanique de la chaleur au moyen des deux chaleurs spécifiques, du coefficient de dilation et du volume de l'unité de poids d'un gaz..‎

Reference : 5175

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