The transmission of energy by means of electromagnetic waves. Radiant energy of any wave length may, when absorbed, become thermal energy and result in an increase in the ...
In quantum theory, the elemental unit of light, having both wave and particle behavior. It has motion, but no mass or charge. The photon energy (E) is proportional to the EM wave ...
The range of frequencies and wavelengths emitted by atomic systems. The total spectrum includes radio waves as well as short cosmic rays. Frequencies cover a range from 1 Hz to ...
A disturbance which propagates outward from an electric charge that oscillates or is accelerated. Includes radio waves; X rays; gamma rays; and infrared, ultraviolet, and visible ...
Also known as All Hallow's Eve, Halloween is an annual holiday celebrated on October 31st in America, Canada, and the UK. It is supposedly the one day ...
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