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Electromagnetic radiation/Related Articles

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A list of Citizendium articles, and planned articles, about Electromagnetic radiation.
See also changes related to Electromagnetic radiation, or pages that link to Electromagnetic radiation or to this page or whose text contains "Electromagnetic radiation".

Parent topics


  • Electromagnetic wave [r]: A change, periodic in space and time, of an electric field E(r,t) and a magnetic field B(r,t); a stream of electromagnetic waves, referred to as electromagnetic radiation, can be seen as a stream of massless elementary particles, named photons. [e]
  • Electromagnetism [r]: Phenomena and theories regarding electricity and magnetism. [e]
  • Frequency [r]: For a periodic (i.e., repeating) phenomena, the number of repetitions per unit of time, usually one second; measured in Hertz [e]
  • Photon [r]: elementary particle with zero rest mass and unit spin associated with the electromagnetic field. [e]
  • Wavelength [r]: For a repeating phenomenon such as a radio signal with a given frequency, the wavelength is the length, in meters, of a single repetition [e]

Other related topics

  • Acute radiation syndrome [r]: Disease or death caused by whole-body irradiation, over a short period of time, with a significant quantity of penetrating radiation [e]
  • Boson [r]: elementary particle with integral spin; composite system consisting of an even number of fermions. [e]
  • Bremsstrahlung [r]: Electromagnetic radiation produced by the acceleration of a charged particle, such as an electron, when deflected by another charged particle, such as an atomic nucleus. [e]
  • Carrier wave [r]: In electromagnetic signal transmission, the basic information-free signal onto which information is modulated. [e]
  • Cellular telephony [r]: A set of techniques that let many low-powered portable telephones connect to the fixed network, often exchanging data and images as well as voice [e]
  • Electromagnetic pulse [r]: An intense burst of electromagnetic (EM) energy caused by an abrupt, rapid acceleration of charged particles, usually electrons. [e]
  • Gamma ray [r]: Penetrating, high-energy electromagnetic radiation emitted from atomic nuclei during nuclear decay. [e]
  • Guglielmo Marconi [r]: (1874 - 1937) Italian inventor and pioneer of radio communication. [e]
  • IEEE frequency bands [r]: A terminological scheme by the Institute for Electrical and Electronic Engineers to broadly classify electromagnetic frequencies used for radio and radar. [e]
  • Infrared light [r]: In physics and engineering, a non-visible portion of the electromagnetic spectrum ranging from wavelengths of 750 nm to 1 mm, between the darkest visible red and the shortest submillimeter wave radar [e]
  • Inverse-square law [r]: A physical law stating that some physical quantity or strength is inversely proportional to the square of the distance from the source of that physical quantity. [e]
  • Ionizing radiation [r]: Subatomic particles or electromagnetic waves that are energetic enough to detach electrons from atoms or molecules, ionizing them. [e]
  • ITU frequency bands [r]: A terminological scheme by the International Telecommunications Union to broadly classify electromagnetic frequencies used for radio and radar. [e]
  • Light [r]: The part of the electromagnetic spectrum visible to a species' biological eye. [e]
  • Lightning [r]: Atmospheric discharge of electricity accompanied by thunder, which typically occurs during thunderstorms, and sometimes during volcanic eruptions or dust storms. [e]
  • Michael Faraday [r]: (1791 – 1867) Was an English physicist and chemist whose best known work was on the closely connected phenomena of electricity and magnetism; his discoveries lead to the electrification of industrial societies. [e]
  • Modulation [r]: The process of varying one waveform in relation to another waveform. [e]
    • Amplitude modulation [r]: Changing the height of the peaks of a periodic waveform, such as a radio wave, to carry information. [e]
    • Frequency modulation [r]: Technique for imposing information onto a electromagnetic signal of constant frequency -- the "carrier wave". [e]
  • Planck's constant [r]: The constant of proportionality relating the energy of a photon to the frequency of that photon, named sfter Max Karl Ernst Ludwig Planck. [e]
  • Quantum mechanics [r]: An important branch of physics dealing with the behavior of matter and energy at very small scales. [e]
  • Radar [r]: (acronym for "radio detection and ranging") A technique used for detecting and tracking targets, navigation, imagery, and special applications. [e]
  • Radiation [r]: Transmission of energy through space. [e]
  • Radio [r]: Transmission and reception of information, which can be voice, data or imagery over electromagnetic radiation in free space (i.e., wireless). The information is modulated onto a carrier wave [e]
  • Speed of light [r]: A physical constant c describing the speed of electromagnetic radiation in vacuum. In the International System of Units the metre is the distance light travels in classical vacuum in 1/c seconds, using the defined value c = c0299  792  458 m/s (exact). [e]
  • Superheterodyne [r]: A form of reception in which the frequency of an incoming signal is mixed with a locally generated signal and converted to an intermediate frequency in order to facilitate amplification and the rejection of unwanted signals. [e]
  • Television [r]: Electronic transmission of moving pictures. [e]
  • Ultraviolet [r]: The part of the electromagnetic spectrum between the visible light and X-ray regions [e]
  • Visible light [r]: Electromagnetic radiation of a wavelength that is detectable by the human eye. [e]
  • Wave-particle duality [r]: The concept that all matter and energy exhibits both wave-like and particle-like properties. [e]
  • Wireless telegraphy [r]: The use of radio to send telegraphic messages rather than by long-distance transmission lines. [e]
  • X-ray [r]: An ionizing type of electromagnetic radiation whose absorption or diffraction often used for structural investigations of matter. [e]