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Analyse des travaux de l'Academie royale des sciences, pendant l'annee 1819, partie mathematique." with: "Anlayse de travaux de l'Academie royale des sciences, pendant l'annee 1820, partie mathematique. with: FOURIER, Jean Baptiste Joseph (1768-1830). Eloge de M. Delambre, par M. le baron Fourier.

DELAMBRE, Jean-Baptiste Joseph (1749-1822).

Published by Tome IV. Paris:, Extracted from: Memoires de l'Academie Royale des Sciences de l'Institute de France. Annees 1819 et 1820.
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Firmin Didot, 1824. 255 x 203 mm. 4to. Pages i-lxxxi; cxxvii-cci; ccii-ccxxviii. [Entire volume: [iv], (i)-cccxlvi pp.] Occasional foxing. Modern dark brown speckled calf, calf corners, marbled boards, raised bands, brown leather spine label, gilt spine, new end-leaves. Ex library rubber stamp on title page. Very good. FIRST EDITION. When the Insitut National was reorganized in 1803, Delambre was appointed the first permanent secretary for les sciences mathematiques. Here, as a part of his official duties, Delambre summarizes the mathematical contributions of l'Academie Royale des Sciences de l'Institute de France for the years 1819 and 1820. As a scientist, Delambre is remembered primarily for his improvements in astronomical tables and his contributions to the measurement of the earth and the establishment of the base of the metric system. Until 1808, Delambre made observations from his private observatory, primarily checking stellar positions in the major catalogs from Flamsteed's to Maskelyne's. He also associated himself with Laplace, who was working on the problems of perturbations and other aspects of celestial mechanics, and produced new tables based on these investigations. In the official Eulogy offered here, Fourier commented on Delambre's work: Before him astronomical calculations were founded on numerical processes, which were at once indirect and irregular; these he has changed throughout, or ingeniously remodeled. Most of those which astronomers use at the present time belong to him, having been deduced from analytic formulas, which, in their application, have been found alike, sure, uniform, and manageable. The new tables which he has given us of the sun, of Jupiter, of Saturn, of Uranus, and of the satellites of Jupiter, at least some of them, may have been considerably improved by recent labors founded on a greater number of exact observations; yet, in the present state of astronomy, and up to this day, the tables of Delambre just mentioned are those employed in the calculations made for the Connaissance des temps and for the nautical and astronomical ephemerides of most nations. In addition, the geodetic operation, for which we are chiefly indebted to him, of which he bore the greatest share, is the most perfect and extensive which has been executed in any country. It has served as the model of all enterprises of the kind which have been since projected. Pages ccxxi-ccxxii. Jean-Baptiste Delambre had been involved in measurements that would lead to the creation of the metric system since 1792. In 1810, a commission of French and foreign scientists used Delambre's results to determine the unit of length which became the standard meter. Jean Joseph Fourier said that "no other application of science is to be compared with this as regards its character of exactness, utility, and magnitude." The newly constituted Institute de France designated this survey "the most important application of mathematical of physical science which had occurred within ten years" and in 1810 gave Delambre a prize for his share in the great work. DSB, IV, pp. 14-18. Bookseller Inventory # S3112

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Title: Analyse des travaux de l'Academie royale des...

Publisher: Tome IV. Paris:, Extracted from: Memoires de l'Academie Royale des Sciences de l'Institute de France. Annees 1819 et 1820.

Binding: Hardcover

Edition: 1st Edition

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