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Particles in the air scatter short-wavelength light (blue and green) through Rayleigh scattering much more strongly than longer-wavelength yellow and red light. Loosely, the term crepuscular rays is sometimes extended to the general phenomenon of rays of sunlight that appear to converge at a point in the sky, irrespective of time of day. [3] [4]
A color term (or color name) is a word or phrase that refers to a specific color. The color term may refer to human perception of that color (which is affected by visual context) which is usually defined according to the Munsell color system, or to an underlying physical property (such as a specific wavelength of visible light).
Such colors "are made from a combination of different pigments and aluminum flakes that have different weights and particle sizes". [2] Crayon -maker Crayola has manufactured several lines of "metallic" products, including " Metallic FX " crayons, [ 3 ] and " Metallic Colors " colored pencils, which have flecks of sparkles to achieve the ...
Black and White (Bk&W): Distinguish black and white. Warm and Cool (Wa&C): Distinguish the warm primaries (red and yellow) from the cool primaries (green and blue). Red: Distinguish red. The ordering of these rules is reflective of the data of the overwhelming majority of languages studied in the WCS.
Stacker compiled a list of 20 slang words popularized from Black Twitter that have helped shape the internet. ... "Brazy" is another word for "crazy," replacing the "c" with a "b." It can also be ...
The word iridescence is derived in part from the Greek word ἶρις îris (gen. ἴριδος íridos), meaning rainbow, and is combined with the Latin suffix -escent, meaning "having a tendency toward". [1] Iris in turn derives from the goddess Iris of Greek mythology, who is the personification of the rainbow and acted as a messenger of the ...
The notion of "green" in modern European languages corresponds to light wavelengths of about 520–570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450–530 nm ("blue/green") and another for ca. 530–590 nm ("green/yellow").
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.