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** 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.
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** Cosmic Trigger I: The Final Secret of the Illuminati ( 1977 )
** Cosmic Trigger II: Down to Earth ( 1992 )
** Cosmic Trigger III: My Life After Death ( 1995 )
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** Best Fantasy or Science Fiction Boardgame: Cosmic Encounter
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** Cosmic mass distribution, see Cosmic microwave background radiation and Large-scale structure of the cosmos
** Cosmic mass density, see Shape of the Universe
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** Cosmic entities ( DC Comics )
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** 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.
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** 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.
** 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.
** Electromagnetic radiation and health ( especially related to power lines and cancer risk )
** 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.
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