See also: 1807 in science, other events of 1808, 1809 in science and the list of 'years in science'.
Astronomy Carl Friedrich Gauss found methods for determining an orbit based on three observations. He also presented his least squares method Chemistry Barium, calcium, magnesium, and strontium isolated by Sir Humphry Davy. Joseph Louis Gay-Lussac formulated the law of combining volumes for gases. John Dalton publishes New System of Chemical Philosophy, explaining his atomic theory of chemistry. Awards Copley Medal: William Henry Births Deaths
Deaths