varialectio t1_iufy9k5 wrote on October 31, 2022 at 12:50 AM

Anything finely divided has millions of facets that reflect light in millions of directions again and again. Nothing is 100% transparent. So the incoming light gets completely mashed up giving white.

Salt, powdered sugar, mist, a waterfall, ground glass, etc, etc, all the same reason.

RTXEnabledViera t1_iufygog wrote on October 31, 2022 at 12:52 AM

>Nothing is 100% transparent

I'd argue that vacuum is kapp

Mental_Cut8290 t1_iug47i6 wrote on October 31, 2022 at 1:36 AM

Vacuum is nothing, therefore statement is accurate.

Bierbart12 t1_iug0qa1 wrote on October 31, 2022 at 1:09 AM

Quantum fluctuations might make it a tiny bit less than 100%, to be pedantic

ttubehtnitahwtahw1 t1_iuh1hrh wrote on October 31, 2022 at 7:37 AM

Probably similar to polar bear fur.