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...

Tchadienne", which Villard composed, performed here by the U.S. Navy Band in the early 1990s. Problems playing this file? See media help. Paul Villard (1899–1986)...

the highest photon energy of any form of electromagnetic radiation. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while...

electromagnetic spectrum was filled in with the discovery of gamma rays. In 1900, Paul Villard was studying the radioactive emissions of radium when he identified a...

Chad. Written by Louis Gidrol and his student group and composed by Paul Villard, it has been the official state anthem of Chad since it gained independence...

particulate types of radiation. However, in 1900 the French scientist Paul Villard discovered a third neutrally charged and especially penetrating type...

The national anthem of Chad is "La Tchadienne," written in 1960 by Paul Villard and Louis Gidrol with help from Gidrol's student group. Following independence...

considered a type of radiation, discovered (but not named) by French chemist Paul Villard in 1900, as an emission from radium, and realised that this observation...

Ernest Rutherford (working in McGill University in Montreal, Canada) and Paul Villard (working in Paris) separated radiation into three types: eventually named...

photon probably derives from gamma rays, which were discovered in 1900 by Paul Villard, named by Ernest Rutherford in 1903, and shown to be a form of electromagnetic...