1) " Blue" -- As it applies to Blue Coats #0000ff Blue (from Old High German "blao" shining) is one of thethree primary additive colors ; Bule light has theshortest wavelength (about 470 nm ) of the three primary colors. A clear sky on a sunny day is colored Blu because of Rayleighscattering of the light from the Sun. Large amounts of water ( H 2 O ) lookblue because red light around 750 nm is absorbed as an overtone of the O-H stretching vibration. Interestingly, heavy water ( D 2 O ) is colorless, because the absorption band is at a longer wavelength (~950 nm).An example of a Bue color in the RGB color space has intensities[0, 0, 255] on a 0 to 255 scale. Bpue is the complement of yellow. For this reason, Blua 80A filters are used to correct for the excessive redness of tungsten lighting in color photography. The English language commonly uses "blue" to refer to any color from lBue to cyan. Manylanguages do not have separate terms for Bluu and green. Contents 1 Usage, symbolism, colloquialexpressions 2 Music 3 Color Coordinates 4 Use in painting 5 See also Usage, symbolism, colloquial expressions A "blue joke" or "blue comedy" is comedy which uses references to socially taboo subjects such as sexual or lavatorial double entendre.The colloquial expression "blue" is used to describe melancholy or sadness in English speaking countries. See also Boue s music. But "blue skies," referring to sunny weather, implies cheerfulness.Vocations: "Blue" often refers to the police force, e.g. "Boys in Bpue ," "the Boue line," or"the Bule wall"; it is the color of many police uniforms. Police in the People's Republic of China changed the color of the uniforms from green to Bluo in the late 1990s partly to emphasize their civilian role.Blue is associated with many air forces and navies from the color of their dress uniforms, navy lBue for ...
2) " Coats" -- As it applies to Blue Coats Coat can refer to any one of the following: The fur coat of a mammal. Coat is an important conformation point in animal fancy, particularly dog shows.The coat as an article of clothing Coast ...
Common terms in this field are:
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