Varignon p (11 Ergebnisse)

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Couverture rigide. Zustand: Bon. Edition originale. ---- EDITION ORIGINALE ---- BON EXEMPLAIRE GRAND DE MARGES ---- P., Pissot, 1725, un volume in 4 relié en plein veau moucheté, dos orné de fers dorés, tranches rouges (reliure de l'époque), (coiffes légèrement usées), (8), 128pp., 5 PLANCHES DEPLIANTES ---- "VARINGON was admired by LAGRANGE who emphasized his importance in promoting the principle of virtual velocities (as is witnessed by Johann Bernoulli's letter of 1717) and in the matter of composition of forces. This posthumous work was edited from Varignon's manuscripts by Pujol. The study opens with a general discussion of motion, declaring Varignon's discoveries in field of forces and acceleration, which were based on Galileo's work. As well, Varignon lays down principles of the movement and measurement of water, and for the measurements of pipes in aqueducts and fountains". (Bibliotheca mechanica pp. 336/339) ---- DSB XIII pp. 584/586**8078/ARM3.…

Couverture rigide. Zustand: Très bon. Edition originale. ---- EDITION ORIGINALE ---- BEL EXEMPLAIRE ---- P., Brunet, 1731, 2 parties en un volume in 4 relié en plein veau, dos orné de fers dorés, tranches rouges (reliure de l'époque), (petites auréoles marginales sans gravité aux 3 premiers feuillets), (6), 66pp., 155pp., (1pp.), (4), 22 PLANCHES DEPLIANTES ---- "Fully occupied by his teaching duties and his responsibilities as an academician, Varignon had no leisure to prepare works for publication. From the papers he left at his death, most of which are now lost, his disciples assembled several posthumous works : Nouvelle mécanique, Eclaircissements sur l'analyse des infiniment petits and Elémens de mathématiques (1731) which was based on his courses at the Collège Mazarin. His intense pedagogical activity, extending over more than thirty years, constituted his chief contribution to the progress of science and was the source of his fame. By inaugurating a chair devoted specifically to mathematics at the Collège Mazarin, he joined the handful of men who were then teaching advanced mathematics ; and it is in this context that his work was of great importance.". (DSB XIII p. 582) ---- Géométrie spéculative - Des lignes droites et des angles qu'elles renferment - Des lignes circulaires et de leur rencontre avec les lignes droites - Mesure des angles rectilignes - Des surfaces - Triangles rectilignes - Parallèlogrammes - Des proportions - Proportions des lignes droites et des figurent qu'elles contiennent - Trigonométrie - Des corps ou des solides - Géométrie pratique - De la position et de la mesure des lignes droites - Mesure des surfaces rectilignes - Additions, soustraction, multiplication et division des grandeurs entières - Des proportions - Des proportions géométriques - Des fractions - Extraction des racines - Des équations - etc**8067/K1.…