See also: 1818 in science, other events of 1819, 1820 in science and the list of years in science.
Technology Invention of the Breech loading flintlock by John Hall Invention of the Stethoscope by Rene Theophile Hyacinthe Laennec Awards Copley Medal: Not awarded Births June 5 - John Couch Adams, mathematician and astronomer († 1892) August 13 - George Gabriel Stokes, mathematician and physicist († 1903) September 18 - Léon Foucault, physicist († 1868) September 23 - Hippolyte Fizeau, physicist († 1896) Deaths August 19 - James Watt, mathematician and engineer (* 1736)