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

• Michael Faraday isolates benzene
• Hans Christian Orsted produces metallic aluminium in an impure form

• 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

• 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

• September 27th - The world's first modern railway, the Stockton and Darlington Railway, opens

• Copley Medal: François Arago; Peter Barlow

• May 4 - Sir Thomas Henry Huxley, English biologist († 1895)