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>they're inhomogeneous mixtures of literally thousands of different pure substances. such a mixture can easily absorb light over a wide spectral range So why i
by hermitcrab 2y ago
>they're inhomogeneous mixtures of literally thousands of different pure substances. such a mixture can easily absorb light over a wide spectral range
So why is dirt, poop and mixed up playdoh brown, and not black?
- kragen 2y agobecause they reflect some light, so it doesn't keep going into the object until it gets absorbed. dirt scatters light with crystal facets. i don't know what the mechanisms are in poop and playdoh but why is it brown instead of gray? the light that makes it back out is colored according to the dominant absorption mechanisms at play, and evidently in those substances they're better at absorbing blue light than other colors. i have some guesses about why that is but don't really know
- hermitcrab 2y agoInteresting. Thanks.