The discovery of electromagnetic radiation

  • Infrared radiation

    Infrared radiation

    William Herschel, a British astronomer, discovered infrared radiation (heat waves).
  • UV radiation

    UV radiation

    German chemist Johann Ritter discovered UV radiation
  • EM waves

    EM waves

    James Maxwell, a British scientist, predicted the existence of continuous EM waves.
  • Radio Waves

    Radio Waves

    German scientist Heinrich Hertz discovered radio waves
  • X-rays

    X-rays

    German physicist Wihelm Roentgen discovered x-rays
  • Radioactive waves

    Radioactive waves

    French physicist Henri Becquerel discovered radioactive rays emitted by uranium
  • Radium

    Radium

    Marie Curie discovered radium
  • Gamma rays

    Gamma rays

    Frenchman Paul Villard discovered gamma rays