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Ultraviolet (UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun.
Ultraviolet; Milla Jovovich in una scena del film: Lingua originale: inglese: Paese di produzione: Stati Uniti d'America: Anno: 2006: Durata: 88 min 94 min (versione estesa) Genere: azione, fantascienza: Regia: Kurt Wimmer: Sceneggiatura: Kurt Wimmer: Produttore: John Baldecchi Produttore esecutivo: T. C. e Charles Wang, Tony Mark ...
In fisica, la radiazione ultravioletta, spesso abbreviata in UV e anche conosciuta come raggi UV o luce UV, è considerata la radiazione dello spettro elettromagnetico compresa tra la luce visibile e i raggi X, con una banda di frequenze superiori al violetto, da circa 7,5∙1014 a 7,5∙1016 Hz e con le rispettive lunghezze d'onda ...
9 mar 2016 · The UV region covers the wavelength range 100-400 nm and is divided into three bands: UVA (315-400 nm) UVB (280-315 nm) UVC (100-280 nm). Short-wavelength UVC is the most damaging type of UV radiation. However, it is completely filtered by the atmosphere and does not reach the earth's surface.
3 apr 2024 · Ultraviolet radiation,that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region. Its wavelengths are between 400 and 10 nanometers. Learn more about ultraviolet radiation.
21 giu 2022 · Ultraviolet radiation (UVR) can neither be seen nor felt. While some people are exposed to artificial UVR sources (e.g. in medicine, industry and for disinfection and cosmetic purposes), everyone is exposed to solar UVR. Solar UVR levels are influenced by several factors: Sun elevation: the higher the sun in the sky, the higher the UVR level.
8 nov 2023 · Ultraviolet (UV) radiation covers the wavelength range of 100–400 nm, which is a higher frequency and lower wavelength than visible light. UV radiation comes naturally from the sun, but it can also be created by artificial sources used in industry, commerce and recreation.
