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The blue light spectrum is an essential part of the visible spectrum with wavelengths of about 400-480 nm. [1] Blue light is primarily generated by Light-Emitting Diodes (LED) lighting and digital screens, it has now become prevalent in the world around us. [2] LED lighting creates white light by combining blue light with other wavelengths ...
Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.
Rayleigh scattering causes the blue color of the daytime sky and the reddening of the Sun at sunset. Rayleigh scattering (⫽ ˈ r eɪ l i ⫽ RAY-lee), named after the 19th-century British physicist Lord Rayleigh (John William Strutt), is the predominantly elastic scattering of light, or other electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation.
Blue Light was an American counter-terrorist subunit of the 5th Special Forces Group that existed into the late 1970s. According to Colonel Charles Beckwith's memoirs, this counter-terrorist group was formed by U.S. Army Special Forces leadership to fill an important counter-terrorism gap until Delta Force became operational. He stated that the ...
Ted McKeever. Wonder Woman: The Blue Amazon is a DC Comics comic book and a Wonder Woman Elseworlds publication. It is the third - and final - part of a trilogy based on German Expressionist cinema, preceded by Superman's Metropolis and Batman: Nosferatu. It was written by Jean-Marc Lofficier and Randy Lofficier and illustrated by Ted McKeever .
Blue light. Blue light is an archaic signal, the progenitor of modern pyrotechnic flares.Blue light consists of a loose, chemical composition burned in an open, hand-held hemispherical wooden cup, and so is more akin to the flashpan signals of the Admiral Nelson era than the modern, encased signal flares, which are often launched by mortar or rifle and suspended by parachute.
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