Scientists have revealed that purple, a popular color often associated with royalty, is fake. A figment of our imaginations.

Popular Mechanics reports that purple is a “pigment of your imagination”: The human eye doesn’t actually see purple.

Selling more than 190 million copies, this series follows Kristy, Claudia, Stacey, and a crew of other local children who start their own babysitting business. With about 250 books in the series (plus ...