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jacksonhh 21-12-2012
"The Young-Helmholtz trichromatic (three-color) theory proposed that the retina contains three types of color receptors. Contemporary research has found three types of cones, each most sensitive to the wavelengths of one of the three primary colors of light (red, green, or blue). Hering’s opponent-process theory proposed three additional color processes (red-versus-green, blue-versus-yellow, black-versus-white). Contemporary research has confirmed that, en route to the brain, neurons in the retina and the thalamus code the color-related information from the cones into pairs of opponent colors. These two theories, and the research supporting them, show that color processing occurs in two stages."
super-malik 27-01-2013
Young-Helmholtz trichromatic theory helps us to understand vision
sonam-g 27-01-2013
Capability to see differences in coloring, as well as hue, impregnation and brightness.  
mohan_das 30-01-2013
The chance to observe coloring as a result of bearing involving coloration discovering pigments from the photoreceptor level on the retina.  
honda-civic 30-01-2013
The genetically handed down attribute where the capacity to differentiate approximately hues can be lower than normal.  
saravati 15-02-2013
Every single feasible tool combining can be aforethought(ip) throughout danger-returning room, along with the assortment of all such possible investment portfolios identifies a region therein room. The line down the top fringe of this particular place is recognized as this efficient frontier (from time to time “the particular Markowitz frontier”). Mixtures coupled this specific range characterize investment portfolios (clearly taking out the danger-no cost alternative) which is why there exists last risk to get a granted a higher level go back. Then again, for any presumption level of risk, the profile lying down about the effective frontier symbolizes the mix providing the most beneficial come back.

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