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Term: infrared card
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infrared card!
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infrared card
Comprehensive Analysis
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1) "Infrared" -- As to infrared card in·fra·red Pronunciation: "in-fr&-'red, -(")frä-, -f&- Function: adjective 1 : situated outside the visible spectrum at its red end -- used of radiation having a wavelength between about 700 nanometers and 1 millimeter 2 : relating to, producing, or employing infrared radiation <infrared therapy> 3 : sensitive to infrared radiation <infrared sensors that detect body heat> - infrared noun Pronunciation Symbols Image of two girls in mid-infrared ("thermal") light (false-color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. The name means "below red" (from the Latin infra, "below"), red being the color of visible light of longest wavelength. Infrared radiation spans three orders of magnitude and has wavelengths between approximately 750 nm and 1 mm.[1] The infrared portion of the spectrum has a number of technological uses, including target acquisition and tracking by the military; remote temperature sensing; short-ranged wireless communication; spectroscopy, and weather forecasting. Telescopes equipped with infrared sensors are used in infrared astronomy to penetrate dusty regions of space, such as molecular clouds; detect low temperature objects such as planets orbiting distant stars, and to view highly red-shifted objects from the early history of the universe.[2] At the atomic level, infrared energy elicits vibrational modes in a molecule through a change in the dipole moment, making it a useful frequency range for study of these energy states. Infrared spectroscopy is the examination of absorption and transmission of photons in the infrared energy range, based on their frequency and intensity.[3] - 1 Different regions in the infrared
- 1.1 Telecommunication bands in the infrared
- 1.2 "Heat"
- 2 Applications
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