[hist-analytic] Science News About "Forbidden" Colors

[Bruce Aune]

In case anyone on the list didn't see it, the latest issue of  
Scientific American has a very interesting article on what have been  
considered "impossible" colors, mixtures of red and green, blue and  
yellow. In my arguments with Steve I mentioned that it was thought to  
be physically impossible for human beings (owing to the structure of  
their eyes) to perceive such mixtures, but recent experiments have  
show that some people in certain special circumstances can actually  
see such colors. I mention the article because of its intrinsic  
interest; I am not trying to open a discussion  that went on long  
enough.

Best regards,
Bruce
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