infrared, infrared frequency(noun)
the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
"they could sense radiation in the infrared"
infrared, infrared light, infrared radiation, infrared emission(adj)
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
"infrared radiation"; "infrared photography"
electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm
Etymology: Latin infra, below, + red
In the infrared spectrum.
Etymology: Latin infra, below, + red
Having the wavelength in the infrared.
Etymology: Latin infra, below, + red
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore generally invisible to the human eye, although IR at wavelengths up to 1050 nanometers (nm)s from specially pulsed lasers can be seen by humans under certain conditions. IR wavelengths extend from the nominal red edge of the visible spectrum at 700 nanometers (frequency 430 THz), to 1 millimeter (300 GHz). Most of the thermal radiation emitted by objects near room temperature is infrared. As with all EMR, IR carries radiant energy and behaves both like a wave and like its quantum particle, the photon. Infrared radiation was discovered in 1800 by astronomer Sir William Herschel, who discovered a type of invisible radiation in the spectrum lower in energy than red light, by means of its effect on a thermometer. Slightly more than half of the total energy from the Sun was eventually found to arrive on Earth in the form of infrared. The balance between absorbed and emitted infrared radiation has a critical effect on Earth's climate. Infrared radiation is emitted or absorbed by molecules when they change their rotational-vibrational movements. It excites vibrational modes in a molecule through a change in the dipole moment, making it a useful frequency range for study of these energy states for molecules of the proper symmetry. Infrared spectroscopy examines absorption and transmission of photons in the infrared range.Infrared radiation is used in industrial, scientific, military, commercial, and medical applications. Night-vision devices using active near-infrared illumination allow people or animals to be observed without the observer being detected. Infrared astronomy uses sensor-equipped telescopes to penetrate dusty regions of space such as molecular clouds, detect objects such as planets, and to view highly red-shifted objects from the early days of the universe. Infrared thermal-imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.Extensive uses for military and civilian applications include target acquisition, surveillance, night vision, homing, and tracking. Humans at normal body temperature radiate chiefly at wavelengths around 10 μm (micrometers). Non-military uses include thermal efficiency analysis, environmental monitoring, industrial facility inspections, detection of grow-ops, remote temperature sensing, short-range wireless communication, spectroscopy, and weather forecasting.
Infrared light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometres to 1 mm. This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz, and includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements. The existence of infrared radiation was first discovered in 1800 by astronomer William Herschel. Slightly more than half of the energy from the Sun arrives on Earth in the form of infrared radiation. The balance between absorbed and emitted infrared radiation has a critical effect on the Earth's climate. 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 for molecules of the proper symmetry. Infrared spectroscopy examines absorption and transmission of photons in the infrared energy range. Infrared light is used in industrial, scientific, and medical applications. Night-vision devices using active near-infrared illumination allow people or animals to be observed without the observer being detected. Infrared astronomy uses sensor-equipped telescopes to penetrate dusty regions of space, such as molecular clouds; detect objects such as planets, and to view highly red-shifted objects from the early days of the universe. Infrared thermal-imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.
Song lyrics by infrared -- Explore a large variety of song lyrics performed by infrared on the Lyrics.com website.
The numerical value of infrared in Chaldean Numerology is: 1
The numerical value of infrared in Pythagorean Numerology is: 3
The red stars are either embedded or shrouded by intervening dust, these clouds are so thick that even Hubble’s infrared capability could not penetrate them.
The infrared looks for a flash from a gunshot and the acoustics listens for the bang, so we get the flash and the bang, and then we cue the operator. The accoustics get us very accurate azimuth, or bearing, to the threat. The combination of knowing the speed of light and the speed of sound, we’re able to get the distance in the time of arrival to the threat.
I think we chose the Tarantula Nebula as one of our first targets because we knew it would demonstrate the breadth of Spitzers capabilities, that region has a lot of interesting dust structures and a lot of star formation happening, and those are both areas where infrared observatories can see a lot of things that you cant see in other wavelengths.
The infrared shows us that the surface of the south pole is young, which is not a surprise because we knew about the jets that blast icy material there, now, thanks to these infrared eyes, you can go back in time and say that one large region in the northern hemisphere appears also young and was probably active not that long ago, in geologic timelines.
The millimeter wave radar turns on first. Then the data link gives it a cue and tells the seeker where to open up and look. Then it turns on its IR (infrared) which uses heat seeking technology.
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Translations for infrared
From our Multilingual Translation Dictionary
- تحت الحمراء, الأشعة تحت الحمراءArabic
- infraroigCatalan, Valencian
- infračervený, infračervenéCzech
- infrarød, infrarød strålingDanish
- υπέρυθρος, υπέρυθρεςGreek
- فروسرخ, فرو سرخPersian
- fodhearg, infridheargIrish
- fo-dheargScottish Gaelic
- infravörös, infravHungarian
- אינפרא אדוםHebrew
- 赤外, 赤外線Japanese
- 적외선, 적외선의Korean
- инфрацрвено зрачење, инфрацрвенMacedonian
- infraraud stråling, infraraudNorwegian Nynorsk
- infrarød, infrarød strålingNorwegian
- podczerwień, podczerwonyPolish
- infracrven, инфрацрвенSerbo-Croatian
- infraröd, infraröd strålning, infrarSwedish
- Kızılaltı, Kızılötesi, kızılTurkish
- hồng ngoạiVietnamese
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