I remember reading a Start Trek novel many years ago (sue me) that said Klingon vision was shifted towards the ultra-violet end of the spectrum, so they saw the red end of the spectrum as 'Black'. That was why Star Fleet Security (the so-called 'Red Shirts') upset them so; they were all dressed in Death Black...

So I guess the number of colors in a rainbow depends on the species looking at it...

In reply to Re: How many colors does a rainbow have? by apl
in thread How many colors does a rainbow have? by ambrus

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