Re: What is music ... = spirals


Subject: Re: What is music ... = spirals
From: Kevin Austin (kevin.austin@videotron.ca)
Date: Sun Nov 20 2005 - 18:07:55 EST


The extension of this question is what do "red / green" color blind
men see? Does the color wheel for them have a crossfade between red
and green? something which 'normal' (sic) vision finds difficult to
make happen.

The illusions below were different for each of my eyes, as I have one
eye which sees more yellow, and one which sees more red. (Flesh tone
for my yellow eye is slightly grey/green.)

Best

Kevin

At 22:58 +0000 2005/11/20, Richard Wentk wrote:
>At 22:36 20/11/2005, you wrote:
>>Perhaps one is metric, and the other psychometric, therefore both
>>being useful representations in their own way.
>
>The red/purple mix can't be correlated to a wavelength, and won't be
>found coming out of a prism. The other colours can be, and will be.
>
>This isn't much like the octave, for reasons that are probably obvious.
>
>However - that doesn't mean your eyes are any good at seeing colour.
>See e.g. illusion 3:
>
>http://www.echalk.co.uk/amusements/OpticalIllusions/colourPerception/colourPerception.html
>
>(I didn't believe this was real, so I downloaded it and checked
>colour values in Photoshop. It really is genuine.)
>
>Richard



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