>Everything in this essay comes from this source. https://fermatslibrary.com/s/why-some-things-are-darker-when-wet https://fermatslibrary.com/s/why-some-things-

>Everything in this essay comes from this source. https://fermatslibrary.com/s/why-some-things-are-darker-when-wet https://fermatslibrary.com/s/why-some-things-are-darker-when... It's less hand-wavey. Also, the reflectivity of water is very low at low angles of incidence, rising to 100% at normal angles. Less light reaches the wetted material. https://en.wikipedia.org/wiki/File:Water_reflectivity.jpg https://en.wikipedia.org/wiki/File:Water_reflectivity.jpg