Difference between revisions of "Terminology:Photon"
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The name given to a small bundle or quantum of electromagnetic energy. It is used when describing the particle-like behavior of electromagnetic waves (including [[Terminology:Light|light]] waves). | The name given to a small bundle or quantum of electromagnetic energy. It is used when describing the particle-like behavior of electromagnetic waves (including [[Terminology:Light|light]] waves). | ||
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* [[WikiPedia:Photon]] | * [[WikiPedia:Photon]] | ||
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Revision as of 19:14, 4 March 2005
 Terminology
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The name given to a small bundle or quantum of electromagnetic energy. It is used when describing the particle-like behavior of electromagnetic waves (including light waves).
Photons travel through empty space at a speed of approximately 186,282 miles (299,792 kilometers) per second also called lightspeed. This is true no matter what the electromagnetic wavelength. In media other than a vacuum, the speed is reduced. For example, visible light travels more slowly through glass than through outer space.
