Definitions[]
Electromagnetic radiation (sometimes abbreviated EMR) is
| “ | a ubiquitous phenomenon that takes the form of self-propagating waves in a vacuum or in matter. It consists of electric and magnetic field components which oscillate in phase perpendicular to each other and perpendicular to the direction of energy propagation. | ” |
| “ | [r]adiation made up of oscillating electric and magnetic fields and propagated with the speed of light. Includes gamma radiation, X-rays, ultraviolet, visible, and infrared radiation, and radar and radio waves.[1] | ” |
Overview[]
Electromagnetic radiation is classified into several types according to the frequency of its wave; these types include (in order of increasing frequency and decreasing wavelength): radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. A small and somewhat variable window of frequencies is sensed by the eyes of various organisms; this is what we call the visible spectrum, or light.
References[]
- ↑ Electronic Warfare, at GL-8.
See also[]
- Electromagnetic
- Electromagnetic compatibility
- Electromagnetic environment
- Electromagnetic environmental effects
- Electromagnetic field
- Electromagnetic interference
- Electromagnetic intrusion
- Electromagnetic jamming
- Electromagnetic pulse
- Electromagnetic spectrum
- Electromagnetic spectrum management
- Electromagnetic vulnerability
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