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But if you're thinking of 'thermal night vision' which also are in the infra red spectrum you are making excellent sense, as well as making me curious:)
Together we will conquer:)
Why didn't you just say so earlier?  I was stuck with Mr. yor_on for two hours!!   
BTW, Glyph, thanks for the image but I think that saying "The reflectance of a surface is not necessarily the same for all wavelengths of electromagnetic radiation" is only informative to someone with no colour vision.
I've also learnt that dark blue is one, or the one, of the most 'difficult' colours for us to see when dusk is 'falling in'.Any views on that?
Didn't think of that:)But it's true that IR and 'near IR' is just near, not the same.But what color would then be the most reflective?off white:)
Blue, in general, is difficult to see because your eye isn't as efficient at the extreme wavelengths. But when your eyes become dark-adjusted, it's easier to see blue (scotopic vs photopic vision)...sorry, you cannot view external links. To see them, please
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