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What are Electromagnetic Waves? August 14, 2006

Posted by healthyself in 60 Hz Magnetic Fields, Blogroll, Cell phone safety, Definitions, Electrosensitivity, Electrosmog, ELF, EMF's, EMR, heat, High Frequencies, high voltage transmission lines, Light, mobile telephones, radiation, Waves.
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Electromagnetic waves are formed when an electric field couples with a magnetic field. Magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.

Electromagnetic waves can be described by their wavelength, and also by their energy and frequency.All three of these things are related to each other mathematically. It is correct to talk about the energy of an X-ray or the wavelength of a microwave or the frequency of a radio wave.

The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.

http://imagers.gsfc.nasa.gov/ems/waves2.html

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