See also: 1901 in science, other events of 1902, 1903 in science and the list of years in science.
Aeronautics Lyman Gilmore reportedly becomes the first person to fly a powered airplane (a steam-powered glider). Archaeology Spyridon Stais finds the Antikythera mechanism Chemistry August Verneuil develops a process for making synthetic rubies. Photography Arthur Korn devises practical phototelegraphy technology (reduction of photographic images to data bits which can transmitted by wire to other locations) Physics James Jeans finds the length scale required for gravitational perturbations to grow in a static nearly homogeneous medium Philipp Lenard observes that maximum photoelectron energies are independent of illuminating intensity but depend on frequency Theodor Svedberg suggests that fluctuations in molecular bombardment cause the Brownian motion Awards Nobel Prizes Physics - Hendrik Lorentz, Pieter Zeeman Chemistry - Hermann Emil Fischer Medicine - Ronald Ross Births February 10 - Walter Houser Brattain, physicist August 8 - Paul Dirac, physicist Deaths September 5 - Rudolf Virchow, pathologist and biologist December 22 - Richard von Krafft-Ebing, sexologist
