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[linkfrenzy]

Red-Green & Blue-Yellow: The Stunning Colors You Can't See| On Seeing Reddish Green and Yellowish Blue
http://www.lifeslittlemysteries.com/2069-forbidden-colors-red-green.html
Vision research over the past 30 years has gradually proven that forbidden colors -- reddish green and yellowish blue -- are real, though some scientists still don't believe

Comments

[interactiveleaf]

Thanks for sharing some of your sources with us. :-)