Form of electromagnetic radiation with a wavelength between 0.7 and 100 micrometers (µm). Also called longwave radiation.

Electromagnetic radiation with wavelength longer than visible light but shorter than that of microwaves. Infrared radiation is produced by hot objects; absorption of infrared radiation causes chemical [..]

Electromagnetic radiation with wavelengths between about 0.7 and 1000 µm. This radiation is longer than visible radiation but shorter than microwave radiation.

part of the electromagnetic spectrum with wavelengths longer than visible light but shorter than microwaves.

That portion of the electromagnetic spectrum lying between visible light and microwaves. The wavelength range is approximately between 720 and 1 mm. In meteorology, this range is often further divided [..]

Infrared radiation consists of light whose wavelength is longer than the red color in the visible part of the spectrum, but shorter than microwave radiation. Infrared radiation can be perceived as heat. The Earths surface, the atmosphere, and clouds all emit infrared radiation, which is also known as terrestrial or long-wave radiation. In contrast, [..]

Radiant energy not normally considered harmful but that can cause a burning of the unprotected eyes, especially for contact lens wearers. Be sure your sunglasses stop IR radiation.

 – Electromagnetic energy in the infrared region of the electromagnetic spectrum.

Form of electromagnetic radiation with a wavelength between 0.7 and 100 micrometers (µm).

invisible heat energy from the sun.

Invisible radiation of wavelength slightly longer than red light.

Electromagnetic radiation lying in the wavelength interval from 0.7 micrometers to 1000 micrometersm. Its lower limit is bounded by visible radiation, and its upper limit by microwave radiation. Most of the energy emitted by the Earth and its atmosphere is at infrared wavelength. Infrared radiation is generated almost entirely by large-scale intra- [..]

Radiation emitted by the Earth's surface, the atmosphere, and clouds. It is also known as terrestrial or long-wave radiation. Infrared radiation has a distinctive range of wavelengths ("spectrum") longer than the wavelength of the red color in the visible part of the spectrum. The spectrum of infrared radiation is practically distinc [..]

Electromagnetic radiation with a wavelength of approximately 0.7 to 1000 µm that falls between visible red light and microwaves on the electromagnetic spectrum. According to Planck’s law, the solar ra [..]

A type of invisible radiation for which the wavelengths are longer (about 770 nm to 1100 nm) and frequency lower than those for visible radiation (The visible spectrum is made up of red, orange, yellow, green, blue, indigo, and violet - ROYGBIV, for short.)

Electromagnetic radiation whose wavelength is longer than that of visible light, and is responsible for the transmission of radiant heat.

Invisible thermal radiation in the wavelength range > 780 nm. Infrared radiation is produced by all light sources, but especially by thermal radiators, where it constitutes the majority of the emit [..]

The heat energy that is emitted from all solids, liquids, and gases. In the context of the greenhouse issue, the term refers to the heat energy emitted by the Earth's surface and its atmosphere. [..]

Invisible to the human eye, this electromagnetic radiation has a wavelength of greater than 750 manometers.

Infrared is electromagnetic radiation whose wavelength spans the region from about 0.7 to 1000 micrometers (longer than visible radiation, shorter than microwave radiation). Remote sensing instruments [..]

radiation with wavelengths greater than those of the visible light (at about 8000 Angstroms or 800 nanometers(nm)) but shorter than those of microwaves (at about 1,000,000 Angstroms or 800,000 nm). In [..]

Infrared radiation (IR) is an electromagnetic radiation with longer wavelengths than visible light but shorter than the so-called terahertz radiation range (i.e. between 780 nm to 1000 µm). The therma [..]

(IR) - Energy that is emitted in the form of electromagnetic waves at a wavelength greater than about 750 up to approximately 30,000 nanometers. Although the earth absorbs almost all the IR, UV, and v [..]

The part of the electromagnetic radiation whose wavelength range lies between 0.75 micrometer to 1000 micrometers.

Any radiant energy within the wavelength range of 770 to 106 nanometers is considered infrared energy. (1 nanometer = 1 billionth of a meter, or 1 X 10-9 m).

(IR) Electromagnetic radiation at wavelengths shorter than microwaves and longer than visible red light; emitted by most objects on Earth.

Optical radiation for which the wavelengths are longer than those for visible radiation and shorter than those for radio waves. It corresponds to invisible heat radiation.

Radiation emitted by the Earth's surface, the atmosphere and by clouds. Also known as terrestrial and long-wave radiation. Infrared radiation has a distinctive spectrum (i.e., range of wavele [..]