Paul Ulrich Villard
Paul Ulrich Villard was born on September 28, 1860. See ranking, bio blurb, and everyone else born that day.
About Paul Ulrich Villard
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.