[mjd]

If you find this kind of thing interesting, I strongly recommend the book [The Nature of Light and Colour in the Open Air](https://store.doverpublications.com/0486201961.html) by Marcel Minnaert. He discusses why wet things are darker, why shadows of leaves have little circular gaps, how to see the "green flash" that sometimes precedes a sunset, and dozens of others, some you might have noticed and wondered about, and some you won't realize you noticed until he points it out.

[mturmon]

Seconded. It’s a great physics based explanation of everyday light properties.

[kinow]

Sounds interesting! Thanks for the link!