Why do certain geometric patterns appear to pulsate? What makes your eyes see color where there is none? How do colorful rings appear on a spinning black-and-white disk? These questions and more are answered at the Exploratorium, San Francisco"s renowned hands-on science museum. Now readers can bring the experience home through 30 mind-boggling experiments that will wow science geeks of all ages. Seeing comes with almost everything needed to experience the amazing effects—including spinner, reflective sheet, straws, and pipe cleaners—and the tear-out pages make it easy to share the fun with friends!