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** Electromagnetic radiation
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** and Electromagnetic
** James Clerk Maxwell presents his paper A Dynamical Theory of the Electromagnetic Field to the Royal Society in London, treating light as an electromagnetic wave.
** Lightning Electromagnetic Pulse ( LEMP ), although typically a short series of pulses.
** Nuclear Electromagnetic Pulse ( NEMP ), as a result of a nuclear explosion.
** Non-Nuclear Electromagnetic Pulse ( NNEMP ) weapons.
** The Advisory Committee on Electromagnetic Compatibility ( ACEC ) co-ordinates the IEC's work on EMC between these committees.
** Electromagnetic interference
** Electromagnetic radiation and health ( especially related to power lines and cancer risk )
** Electromagnetic Systems Division-The Electromagnetic Systems ( EMS ) Division of General Atomics is a supplier of electromagnetic systems and related power equipment for a variety of defense, energy, and commercial transportation applications.
** Electromagnetic induction
** Electromagnetic field
** Electromagnetic fields
** Electromagnetic interference ( EMI )
** and radiation
** Macroevolution: adaptive radiation — convergent evolution — extinction — mass extinction — fossil — taphonomy — geologic time — plate tectonics — continental drift — vicariance — Gondwana — Pangaea — endosymbiosis
** Heat flow: conduction, convection, and radiation
** Thermal radiation
** Phosphorescence, fluorescence slightly delayed after initial absorption of radiation ( on a scale of seconds to hours )
** Fixed Survey Meter, ionising radiation from nuclear explosion
** Daigo Fukuryu Maru, a fishing vessel exposed to radiation from a US nuclear test in 1954
** For example, nuclear magnetic resonance ( often referred to as magnetic resonance imaging to avoid the common concerns about radiation ), uses the phenomenon of nuclear resonance to image the human body.
** radiation
** The physical modeling is defined – for example, the equations of motions + enthalpy + radiation + species conservation
** Neutron radiation is not as readily absorbed as charged particle radiation, which makes this type highly penetrating.
** Cosmic radiation is not a common concern, as the Earth's atmosphere absorbs it and the magnetosphere acts as a shield, but it poses a problem for satellites and astronauts and frequent fliers are also at a slight risk.
** X-ray and gamma radiation are best absorbed by atoms with heavy nuclei ; the heavier the nucleus, the better the absorption.
** Ultraviolet ( UV ) radiation is ionizing but it is not penetrating, so it can be shielded by thin opaque layers such as sunscreen, clothing, and protective eyewear.
** Contrary to X-rays, terahertz radiation has a relatively low photon energy for damaging tissues and DNA.
** Some frequencies of terahertz radiation can be used for 3D imaging of teeth and may be more accurate than conventional X-ray imaging in dentistry.
** Terahertz radiation can penetrate fabrics and plastics, so it can be used in surveillance, such as security screening, to uncover concealed weapons on a person, remotely.
** Spectroscopy in terahertz radiation could provide novel information in chemistry and biochemistry.
** Terahertz radiation could let art historians see murals hidden beneath coats of plaster or paint in centuries-old buildings, without harming the artwork.
** Transition radiation detector
** Leadsuit ( voiced by Frank Welker ) – Duke Nukem's cowardly accomplice who is named after the radiation suit he constantly wears to protect himself from Nukem's radioactive aura.
** Acute radiation syndrome
** API unit, a standard measure of natural gamma radiation measured in a borehole.
** X-ray fluorescence ( bathing the object with radiation causes it to emit X-rays ) can reveal if the metals in a metal sculpture or if the composition of pigments is too pure, or newer than their supposed age.
Electromagnetic and radiation
Category: Electromagnetic radiation
Category: Electromagnetic radiation
Category: Electromagnetic radiation meters
Electromagnetic radiation ( EM radiation or EMR ) is a form of energy emitted and absorbed by charged particles, which exhibits wave-like behavior as it travels through space.
Electromagnetic radiation is a particular form of the more general electromagnetic field ( EM field ), which is produced by moving charges.
Electromagnetic radiation is associated with EM fields that are far enough away from the moving charges that produced them, that absorption of the EM radiation no longer affects the behavior of these moving charges.
Electromagnetic radiation thus includes the near and far field | far field part of the electromagnetic field around a transmitter.
Electromagnetic radiation is a transverse wave, meaning that the oscillations of the waves are perpendicular to the direction of energy transfer and travel.
Electromagnetic radiation of wavelengths other than those of visible light were discovered in the early 19th century.
Electromagnetic radiation composed of photons that carry minimum-ionization energy, or more, ( which includes the entire spectrum with shorter wavelengths ), is therefore termed ionizing radiation.
# REDIRECT Electromagnetic radiation
Electromagnetic radiation includes the near and far field | far field part of the electromagnetic field around a transmitter.
Electromagnetic radiation ( sometimes abbreviated EMR ) takes the form of self-propagating waves in a vacuum or in matter.
Electromagnetic radiation is classified into types according to the frequency of the wave, these types include ( in order of increasing frequency ): radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
Electromagnetic radiation of wavelengths other than light were discovered in the early 19th century.
* Electromagnetic radiation was the first source of energy used for spectroscopic studies.
Category: Electromagnetic radiation
Category: Electromagnetic radiation
Electromagnetic radiation propagates following linear wave equations, but can only be emitted or absorbed as discrete elements, thus acting as a wave and a particle simultaneously.
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