Great images of books from around the world and the Web. A bookshelf organized by the colors of the rainbow. My boyfriend and I once tried this with our books. It’s totally doable and fun when you ...

Did you know that in the U.S. we generally count seven colors in a rainbow whereas elsewhere in the world people only count five? We all see the same rainbows but it can be tricky to count the colors ...

SAN FRANCISCO — At sunrise and sunset, only ROY shows up for rainbow duty—G and BIV don’t appear for the earliest and latest color shows in the sky. Rainbows, it seems, are far more complex than the ...