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If something appears blue, it is blue. That’s all color is. Also, if you took a sufficiently large quantity of air and put it into empty space and shined very
by jxdxbx 8mo ago
If something appears blue, it is blue. That’s all color is.
Also, if you took a sufficiently large quantity of air and put it into empty space and shined very bright white through it, it would experience rayleigh scattering—-meaning that air, when you have enough of it and shine a bright enough light through it, is blue.
- yawpitch 8mo agoBy that logic the sky is near-Planck length ultraviolet, because if I put a sufficiently large quantity of it immediately beside a supernova it goes way past blue. Color is a property something has under certain conditions, it is not a property of what that something is under all conditions.