At the Toulon shipyard in 1813, Dupin founded a maritime museum that became a model for others, such as that at the Louvre. In 1810, on his way back to France, he was detained by illness at Pisa and during his convalescence he edited a posthumous book by his friend Leopold Vacca Berlinghierri, Examen des travaux de César au siège d’Alexia (Paris, 1812).
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He restored the port, did fundamental research on the resistance of materials and the differential geometry of surfaces, and became secretary of the newly founded Ionian Academy. After assignments in Antwerp, Genoa, and Toulon, he was placed in charge of the damaged naval arsenal on Corfu in 1807. In 1801, under the guidance of his teacher Gaspard Monge, he had made his first discovery, the cyclid (of Dupin). The second of three sons, Dupin graduated in 1803 from the École Polytechnique in Paris as a naval engineer. His mother was Cathérine Agnès Dupin (her maiden name was also Dupin). Paris, France, 18 January 1873)ĭupin grew up in his native Nivernais, where his father, Charles-André Dupin, was a lawyer and legislator.
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Although a less brilliant man than his brother the Elder Dupin, he may have a more lasting reputation on account of his discoveries in geometry.ĪNONYMOUS, Notice historique sur le baron Charles Dupin (Paris, 1857) Les Mondes (Paris, 1873), XXX, 135 Revue des questions historiques (1881), IX, 517-500.( b. In his political career he showed himself a man of ability, of great industry and activity, and never failed to assert his Catholic convictions. He rallied to the Second Empire and was appointed senator by Napoleon III. Under the Restoration, in spite of the honour bestowed upon him by the Bourbons, he sided with the Liberals and took his seat at the Left of the Chamber under the Monarchy of July, he sat with the Centre, and finally with the Right, under the Republic of 1848. Dupin gradually turned to politics and for forty years was a member of legislative assemblies. Charles X gave him the title of baron in 1824. In his "Carte de la France eclairee" (Paris, 1824), he was the first to use different colours to show the development of education in various parts of France. His "Voyages en Grande Bretagne de 1816 a 1819 (6 vols., Paris, 1820-1824), which were the result of a personal inquiry into the commerce and industry of England placed him in the foremost rank of statisticians. Notwithstanding his brilliant prospects as a mathematician, he soon preferred to devote himself to political economy. The next year Dupin received a professorship at the Conservatoire des arts et metiers during this period he wrote various pamphlets on scientific topics, such as: "Applications de géométrie et de mécanique à la marine" (Paris, 1822) "Diverses lecons sur l'industrie, le commerce, la marine" (Paris, 1825), and also numerous memoirs for the Academy of Sciences, which were highly spoken of. He was elected to the Academy of Sciences in 1818. In 1813 he published a pamphlet, "Développement de géométrie pour faire suite à la géométrie pratique de Monge" (Paris, 1813, containing many new and brilliant theories, the most important of which were one relating to the indicatrix of curved surfaces and another on orthogonal surfaces. He then served in that capacity in the navy and showed so much ability that he was later appointed inspector-general of the navy. At the age of twenty-three he entered the Ecole polytechnique, and after three years of successful studies under the famous Monge, he received the degree of naval engineer. 98957 Catholic Encyclopedia, Volume 5 - Pierre-Charles-François Dupin Louis Narcisse DelamarreĪ French mathematician and economist, b.