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Science > Physics |
| User: |
"" |
| Date: |
26 Apr 2007 11:51:45 PM |
| Object: |
yellow and blue |
I was just wondering if mixing yellow and blue really makes green.
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
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| User: "Androcles" |
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| Title: Re: yellow and blue |
27 Apr 2007 02:57:02 AM |
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<bob@coolgroups.com> wrote in message =
news:1177649505.596646.221940@o40g2000prh.googlegroups.com...
I was just wondering if mixing yellow and blue really makes green.
=20
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
Mixing the computer monitor phosphors of red, blue and green goes
toward white (additive).=20
Mixing paints of different colours goes toward black (subtractive).
If you shine red light on a green surface (say a laser pointer), what
colour do you see?=20
=20
Do it and find out, because no matter what anyone tells you, that's
the only way you'll be sure.=20
Remember Michelson and Morley, they did not succeed in measuring=20
the velocity of light through the aether as Michelson set out to do.=20
Everyone knew what would happen, except it didn't.
"When you agree with a fool, the guarantee is he's doing just the same."
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| User: "Sam Wormley" |
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| Title: Re: yellow and blue |
26 Apr 2007 11:56:15 PM |
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wrote:
I was just wondering if mixing yellow and blue really makes green.
An experiment is worth a thousand expert opinions!
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| User: "" |
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| Title: Re: yellow and blue |
27 Apr 2007 12:04:41 AM |
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In article <1177649505.596646.221940@o40g2000prh.googlegroups.com>, writes:
I was just wondering if mixing yellow and blue really makes green.
Depends what you mean by "makes".
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
Spectral analysis will show spikes at yellow and blue. Your eye will
see green.
Mati Meron | "When you argue with a fool,
meron@cars.uchicago.edu | chances are he is doing just the same"
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| User: "Ben newsam" |
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| Title: Re: yellow and blue |
27 Apr 2007 03:49:59 AM |
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On 26 Apr 2007 21:51:45 -0700, wrote:
I was just wondering if mixing yellow and blue really makes green.
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
You could try it and see! I would recommend doing a spectral analysis
of the blue paint and the yellow paint first, though, the results
might surprise you. Be careful to use a decent broad-spread light
source when doing reflectivity experiments; I have a towel that
appears green under fluorescent light, but brown in daylight. It's a
huge subject, and one that you will find fascinating.
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| User: "dedanoe" |
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| Title: Re: yellow and blue |
27 Apr 2007 04:26:46 AM |
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On Apr 27, 6:51 am, wrote:
I was just wondering if mixing yellow and blue really makes green.
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
Yellow mixed with Blue gives Light and Cool Star!
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| User: "Jan Panteltje" |
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| Title: Re: yellow and blue |
27 Apr 2007 05:15:25 AM |
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On a sunny day (26 Apr 2007 21:51:45 -0700) it happened
wrote in <1177649505.596646.221940@o40g2000prh.googlegroups.com>:
I was just wondering if mixing yellow and blue really makes green.
For instance, if you mix yellow and blue paint and did a spectral
analysis, would there be two spikes at yellow and blue or one at
green?
There are basically 2 kinds of color mixing:
With light sources:
http://en.wikipedia.org/wiki/Additive_color
With pigments:
http://en.wikipedia.org/wiki/Subtractive_color
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