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blackbody radiation

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
blackbody radiation
The electromagnetic radiation that a perfect blackbody would give off at a given temperature. A warm blackbody would emit radiation with a higher average frequency than a cooler one.
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Noun1.blackbody radiation - the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black body depends only on temperature and is determined by Planck's radiation law
black-body radiation
electromagnetic radiation, electromagnetic wave, nonparticulate radiation - radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
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Planck's blackbody radiation law, formulated in 1900 by German physicist Max Planck, describes how energy is dissipated, in the form of different wavelengths of radiation, from an idealized non-reflective black object, called a blackbody.
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If Earthlings were at the center of a bubble, the spectrum of microwave background radiation that came directly to Earth--without reflection--would trace a blackbody radiation curve.
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This structured emission is easily distinguished from the featureless blackbody radiation of the underlying material stream.
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