The stream of particles emitted from the cathode of a vacuum tube. Hittorf Eric Weisstein's World of Biography discovered the rays and noted that they seemed to travel in straight lines and produce a fluorescent Eric Weisstein's World of Physics glow where they passed through the glass. As was soon determined, cathode rays consist of electrons boiled off the cathode.
Alpha Radiation, Beta Radiation, Cathode, Cathode Ray Tube, Gamma Radiation
