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Example sentences from the Web for infrared
Former Red Sox star Curt Schilling says his politics are keeping him out of Cooperstown.Conservative Curt Says His Politics, Not His Pitching, Kept Him Out of the Hall of Fame|Ben Jacobs|January 9, 2015|DAILY BEAST
Nor does the jet have the ability to capture high-definition video, utilize an infra-red pointer.
There was deep brown flesh, and bronze flesh, and pallid white flesh, and flesh turned red from the hot sun.Powerful Congressman Writes About ‘Fleshy Breasts’|Asawin Suebsaeng|January 7, 2015|DAILY BEAST
A Republican candidate hoping to win red state support could find a worse team to root for than one from Dallas.
The pale, baby-faced, red-cheeked rapper is furiously puffing away at a hastily-made blunt crammed with low-grade weed.The Cult of Yung Lean: ‘I’m Building An Anarchistic Society From the Ground Up’|Marlow Stern|January 4, 2015|DAILY BEAST
Beginners must be warned against mistaking the edges of cells, or particles which have retained the red stain, for bacilli.A Manual of Clinical Diagnosis|James Campbell Todd
Under the internal pressure his whiskers stood on end and his face grew red.The Bondboy|George W. (George Washington) Ogden
“You appear to feel it so,” rejoined Mr. Pickwick, smiling at the clerk, who was literally red-hot.The Posthumous Papers of the Pickwick Club, v. 2(of 2)|Charles Dickens
Ripperda's eye fell upon the mantle,—it was discoloured a dark red in many places, he nodded his head, and the man withdrew.The Pastor's Fire-side Vol. 3 of 4|Jane Porter
C was a Captain, all covered with lace; D was a drunkard, and had a red face.
British Dictionary definitions for infrared
Medical definitions for infrared
Scientific definitions for infrared
A Closer Look
In 1800 the astronomer Sir William Herschel discovered infrared light while exploring the relationship between heat and light. Herschel used a prism to split a beam of sunlight into a spectrum and then placed a thermometer in each of the bands of light. When he placed the thermometer just outside the red band, where there was no visible color, the temperature rose, as if light were shining on the thermometer. Further experiment showed that this invisible radiation behaved like visible light in many ways; for example, it could be reflected by a mirror. Infrared radiation is simply electromagnetic radiation with a lower frequency than visible light, having longer wavelengths of 0.7 micrometer to 1 millimeter. Ultraviolet radiation, like infrared radiation, lies just outside the visible part of the spectrum, but with higher frequencies; some animals, such as bees, are capable of seeing such radiation. Both infrared and ultraviolet radiation are often referred to as forms of light, though they cannot be seen by human beings. Heat energy is often transferred in the form of infrared radiation, which is given off from an object as a result of molecular collisions within it. Molecules typically have a characteristic infrared absorption spectrum, and infrared spectroscopy is a common technique for identifying the molecular structure of substances. Astronomers similarly analyze the infrared radiation emitted by celestial bodies to determine their temperature and composition.