Re: IQ Test

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Article #9746

#9746

From: Albert H Dobyns
Date: Tue, 21 Jan 1997 00:00

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In <5c0g8m$jmd@alice.walrus.com> jpowell@walrus.com (Jonathan Powell) writes: 
>
>Gerald Copp (G.Copp) wrote:
>
>: >What color would the light be if red, blue and yellow light are
>: >combined?
>
>: In terms of primary light, yellow is a combination of blue and
green.
>
>Primary light, huh?  And what, pray tell, is NON-primary light?  In
any 
>case, you are mistaken.  Yellow is not a combination of blue and
green.  
>Rather, green is a combination of yellow and blue.  In your computer 
>screen (red/green/blue), you PERCEIVE yellow as a combination of green
and 
>red, but this is an optical trick to the eye.
>
>				JP

I believe the term "primary light" means it comes from a light-
emitting source rather than reflected light.

Although I don't have a physics or photography manual handy,
I do not believe yellow is a combination of green and red
as displayed on tv sets or computer monitors.  If I find
a book with the info, I'll post related text.

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From: ahdobyns@ix.netcom.com(Albert H Dobyns)
Subject: Re: IQ Test
Date: 1997/01/21
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