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What are the uses of infrared radiation?

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Radiation at discrete wavelengths in the infrared range is characteristic of many molecules. The temperature of a distant object can also be determined by analysis of the infrared radiation from the object. Radiometers operating in the infrared range serve as the basis for many instruments, including heat-seeking devices in missiles and devices for spotting and photographing persons and objects in the dark or in fog.

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Get more facts and information about infrared radiation . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

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