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Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with waves that are just longer than those of red light (the longest waves in the visible spectrum), so IR is invisible to the human eye.
17 de may. de 2024 · Learn about infrared radiation, the portion of the electromagnetic spectrum that extends from the red end of visible light to microwaves. Find out how it is divided into three regions, how it is emitted by heated surfaces, and how it is used in various fields of science.
10 de ago. de 2016 · Infrared waves have longer wavelengths than visible light and can pass through dense regions of gas and dust in space with less scattering and absorption. Thus, infrared energy can also reveal objects in the universe that cannot be seen in visible light using optical telescopes.
Learn about infrared radiation, its wavelength, frequency, properties, and applications. Find out how infrared waves are classified, how they behave as waves and particles, and how they affect the Earth's climate.
Infrared light is invisible light with wavelengths longer than 700–800 nm, the upper limit of the visible range. It is also called heat radiation, and can be generated by lasers, LEDs, thermal emitters or nonlinear frequency conversion.
Infrared-light wavelengths are longer and more likely to slip between particles. In space, this allows infrared wavelengths to penetrate all but the densest regions of dust. By viewing infrared light, we can essentially look through cosmic clouds of gas and dust to the objects behind and within them.
16 de ago. de 2013 · Learn about infrared light, a form of light that we can not see but that we can feel as heat. Find out how infrared light relates to temperature, frequency, wavelength, and the electromagnetic spectrum.
