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Violet is the color of light at the short wavelength end of the visible spectrum. It is one of the seven colors that Isaac Newton labeled when dividing the spectrum of visible light in 1672. Violet light has a wavelength between approximately 380 and 435 nanometers. [2] The color's name is derived from the Viola genus of flowers.
Eye color. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye 's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [3] : 9. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of ...
Traditionally, the standard colors in Chinese culture are black, red, cyan ( 青; qīng ), white, and yellow. Respectively, these correspond to water, fire, wood, metal, and earth, which comprise the 'five elements' ( wuxing) of traditional Chinese metaphysics. Throughout the Shang, Tang, Zhou and Qin dynasties, China's emperors used the Theory ...
Black rice is known as chak-hao in Manipur, India and as “kavuni arisi” or “kavuni rice” in the Tamil language, spoken in Tamil Nadu, India and Eelam, Sri Lanka. In Bangladesh, it is known as kalo dhaner chaal (black paddy rice) and used to make polao or rice-based desserts. The bran hull (outermost layer) of black rice contains one of ...
Color psychology is the study of hues as a determinant of human behavior. Color influences perceptions that are not obvious, such as the taste of food. Colors have qualities that can cause certain emotions in people. [1] How color influences individuals may differ depending on age, gender, and culture. [2]
The color adjectives used in 1779 are weiss "white" ( Caucasian race ), gelbbraun "yellow-brown" ( Mongolian race ), schwarz "black" ( Aethiopian race ), kupferrot "copper-red" ( American race) and schwarzbraun "black-brown" ( Malayan race ). [11] Blumenbach belonged to a group known as the Göttingen school of history, which helped to ...
Purple urine bag syndrome ( PUBS) is a medical syndrome where purple discoloration of urine occurs in people with urinary catheters and co-existent urinary tract infection. Bacteria in the urine produce the enzyme indoxyl sulfatase. This converts indoxyl sulfate in the urine into the red and blue colored compounds indirubin and indigo. [1]
The white knot is a symbol of support for same-sex marriage in the United States. The white knot combines two symbols of marriage, the color white and " tying the knot ," to represent support for same-sex marriage. [95] The White Knot has been worn publicly by many celebrities as a means of demonstrating solidarity with that cause.