Why does the sky look blue during the day?
Sky's Pinball Game
Why does the sky look blue during the day?
Look up on a clear afternoon, and there it is — a great blue ceiling, stretched from one edge of the world to the other. No paint, no dye, no enormous bucket of blue. So who colored it? The answer is hiding in plain sight, riding in on the sunlight itself.
Here's the first surprise: sunlight isn't really yellow, and it definitely isn't white-and-boring. It's a secret bundle of every color, all traveling together — red, orange, yellow, green, blue, and violet, packed into one beam. You've seen them split apart before. A rainbow is just sunlight caught unzipping.
