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far-infrared radiation

   Also found in: Encyclopedia 0.03 sec.
far-in·fra·red radiation (färnfr-rd)

far-infrared radiation  (färnfr-rd)
Infrared electromagnetic radiation of very long wavelengths, in the range of 2-50 microns. It is used in medicine to provide a penetrating heat to the body. Also called far-red radiation.


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The expansion of the universe shifts the far-infrared radiation from distant galaxies to longer, submillimeter wavelengths.
5-meter telescope that would probe far-infrared radiation from its vantage point inside a Boeing 747; and a space mission aimed at a 1,000-fold improvement in the precision with which scientists locate celestial bodies.
As reported in the October ASTRONOMICAL JOURNAL, he found they typically emit 500 times more far-infrared radiation than our star apparently does.
 
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