It is energy radiated in the form of a wave caused
by an electric field interacting with a magnetic field.
Electromagnetic radiation is the result of the acceleration
of a charged particle. It does not require a material
medium, and can travel through a vacuum.
of electromagnetic radiation was developed by James
Clerk Maxwell and published in 1865, although his
ideas were not accepted until Heinrich Hertz proved
the existence of radio waves in 1887.