See also: 1832 in science, other events of 1833, 1834 in science and the list of years in science.
Biology Anselme Payen discovers diastase (the first enzyme to be discovered) Marshall Hall coins the term "reflex" Chemistry Thomas Graham proposes Graham's Law Physics Wilhelm Eduard Weber develops an electromagnetic telegraph Awards Copley Medal: Not awarded Births March 25 - Fleeming Jenkin, engineer († 1885) May 5 - Ferdinand Paul Wilhelm Richthofen, geographer († 1905) June 29 - Peter Waage, chemist († 1900) October 9 - Eugene Langen, engineer († 1895) October 17 - Paul Bert, physiologist († 1886) October 21 - Alfred Nobel, inventor († 1896) December 2 - Daniel von Recklinghausen, pathologist († 1910) Deaths January 10 - Adrien-Marie Legendre, mathematician (* 1752) February 6 - Pierre André Latreille, zoologist (* 1762) February 14 - Gottlieb Sigismund Kirchhoff, chemist (* 1764) April 22 - Richard Trevithick, engineer and inventor (* 1771) July 5 - Nicéphore Niepce, inventor (* 1765) October 31 - Johann Friedrich Meckel, anatomist (* 1781)
