Path: utzoo!mnetor!uunet!mcvax!ukc!stc!root44!cdwf
From: cdwf@root.co.uk (Clive D.W. Feather)
Newsgroups: sci.misc
Subject: Re: Color
Message-ID: <493@root44.co.uk>
Date: 9 Dec 87 15:46:24 GMT
References: <162300002@uiucdcsb> <162300004@uiucdcsb>
Reply-To: cdwf@root44.UUCP (Clive D.W. Feather)
Organization: Root Computers Ltd, London, England
Lines: 13


Carl Kadie
Inductive Learning Group
University of Illinois at Urbana-Champaign
writes:
>ii.       There is "no such color" as purple! Mixing red and blue ink 
>          causes your eye to react in a way which is not reproducible 
>	  by any single wavelength of light.

The eye can see colours (for example, in afterimages) that cannot be
reproduced by any combination of wavelengths of light !
There was an article in Scientific American c.1970 entitled "Phosphenes"
that went into this.