re GR Title

[Teen Age Riot]

At 01:10 AM 5/1/96 +0200, Hartwin Alfred Gebhardt wrote:
>A rainbow is caused, as I understand it, by the interaction of light 
>and the medium it passes through. Also by our brain's tendency to 
>'spontaneously' categorize a spectrum of colour into seven distinct 
>colours. 

Hmmm, I'm not positive about this, but I think that color categorization is
at least in part learned.  Different cultures have different "anchor points"
along the spectrum which they use as the base colors.  

Al
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