Main Page | See live article | Alphabetical index The year 1825 CE in science and technology See also: 1824 in science, other events of 1825, 1826 in science and the list of years in science. Table of contents 1 Astronomy 2 Chemistry 3 Mathematics 4 Paleontology 5 Technology 6 Awards 7 Births 8 Deaths Astronomy Pierre-Simon Laplace completes his study of gravitation, the stability of the solar system, tides, the precession of the equinoxes, the libration of the Moon, and Saturn's rings in Mecanique Celeste Chemistry Michael Faraday isolates benzene Hans Christian Orsted produces metallic aluminium in an impure form Mathematics Augustin-Louis Cauchy presents the Cauchy integral theorem for general integration paths -- he assumes the function being integrated has a continuous derivative Augustin-Louis Cauchy introduces the theory of residues in complex analysis Johann Peter Gustav Lejeune Dirichlet and Adrien-Marie Legendre prove Fermat's last theorem for n = 5 André-Marie Ampère discovers Stokes' theorem Paleontology Georges Cuvier proposes his catastrophe theory as the cause of extinctions of large groups of animals Etienne Geoffroy Saint-Hilaire identifies Cuvier's fossil `crocodile´ as a teleosaurus Technology September 27th - The world's first modern railway, the Stockton and Darlington Railway, opens Awards Copley Medal: François Arago; Peter Barlow Births May 4 - Sir Thomas Henry Huxley, English biologist († 1895) Deaths October 6 - Bernard Germain Etienne de la Ville, Comte de Lacepede, naturalist (* 1756) This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.