A good explanation of the colors you see, and those you don't in a rainbow.
posted by newtboy 9 years 6 months 3 weeks ago • 445 views • 2:53Videos (23) | Sift Talk (0) | Blogs (0) | Comments (601) |
I knew that butterflies had scaled wings, but I didn't know how they get their colors.
posted by nock 1 decade 5 months 2 weeks ago • 255 views • 9:18Interesting origins of some colorful English phrases.
posted by nock 1 decade 7 months 2 weeks ago • 427 views • 9:45