vilar4d

13 January 1934. (1934-01-13) (aged 73) Bayonne, France. Known for. Discoverer of gamma rays. Paul Ulrich Villard (28 September 1860 – 13 January 1934) was a French chemist and physicist. He discovered gamma rays in 1900 while studying the radiation emanating from radium . driver epson l3210 windows 8