electromagnetic constant

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• Electromagnetic shielding — cages inside a disassembled mobile phone. Electromagnetic shielding is the process of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive and/or magnetic materials. Shielding is typically applied… …   Wikipedia

• Electromagnetic Aircraft Launch System — (EMALS) is a system under development by the United States Navy to launch aircraft from carriers using a linear motor drive instead of steam pistons used in conventional aircraft catapults. This technology has the advantage of gradually… …   Wikipedia

• electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …   Universalium

• Electromagnetic radiation — Electromagnetism Electricity · …   Wikipedia

• Electromagnetic wave equation — The electromagnetic wave equation is a second order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum. The homogeneous form of the equation, written in terms of either the… …   Wikipedia

• Electromagnetic field — The electromagnetic field is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the vicinity of the field.The electromagnetic field extends indefinitely throughout space and describes the… …   Wikipedia

• Electromagnetic reverberation chamber — A look inside the (large) Reverberation Chamber at the Otto von Guericke University Magdeburg, Germany. On the left side is the vertical Mode Stirrer (or Tuner), that changes the electromagnetic boundaries to ensure a (statistically) homogeneous… …   Wikipedia

• Electromagnetic coil — An electromagnetic coil (or simply a coil ) is formed when a conductor (usually a solid copper wire) is wound around a core or form to create an inductor or electromagnet. One loop of wire is usually referred to as a turn , and a coil consists of …   Wikipedia

• Electromagnetic spectrum — The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation frequencies. [cite web|url=http://imagine.gsfc.nasa.gov/docs/dict ei.html#em spectrum|title=Imagine the Universe! Dictionary] The electromagnetic spectrum… …   Wikipedia

• Constant false alarm rate — La détection par Constant false alarm rate, CFAR, (taux constant de fausses alertes) fait référence à une forme classique d algorithme adaptatif utilisée dans les radars pour isoler le signal retour d une cible d un bruit de fond important, de… …   Wikipédia en Français

• Electromagnetic stress-energy tensor — In physics, the electromagnetic stress energy tensor is the portion of the stress energy tensor due to the electromagnetic field. Definition In free space in SI units, the electromagnetic stress energy tensor is:T^{mu u} = frac{1}{mu 0} [ F^{mu… …   Wikipedia