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White shirts washed in blue seem brighter

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White shirts washed in blue seem brighter

Postby arbuzas » Thu Jun 30, 2011 8:01 pm

Hey there,

Since old times it's known that white shirts, tainted by blue, will look brighter, thus whiter. I heard that it has to do with bipolar cells (Wh, Y B and R G) responses. If we put them in 3D plane, then vector's module is longer if both Wh and Y B cells react as opposed to reaction of only Wh cell (Pythagorean theorem). But why exactly we have to use blue to get brighter shirts? Red colour would also make vector's module longer.
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Postby Genotype » Fri Jul 01, 2011 7:11 pm

And how is this related to cell biology? :)
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Postby arbuzas » Sat Jul 02, 2011 9:06 pm

Well, bipolar cells are biological cells. Am I wrong?
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