-
William Herschel
William Herschel, a British astronomer, discovered infra-red radiation (heat waves). -
Johann Ritter
German chemist Johann Ritter discovered UV radiation -
James Maxwell
James Maxwell, a British scientist, predicted the existence of continuous EM waves. -
Heinrich Hertz
German scientist Heinrich Hertz discovered radio waves -
Wihelm Roentgen
German physicist Wihelm Roentgen discovered x-rays. -
Henri Becquerel
French physicist Henri Becquerel discovered radioactive rays emitted by uranium. -
Marie Curie
Marie Curie discovered radium -
Paul Villard
Frenchman Paul Villard discovered gamma rays.