Seeing the Light was a participatory science laboratory that invited visitors to experiment with interference patterns and optics, resonances and reflections, lasers and illusions. IBM commissioned the Exploratorium to create the exhibit in 1984. It was originally shown in the IBM Gallery of Science and Art in Manhattan and the collection was then given to the New York Hall of Science.
Here’s an exhibit where watching is at least half the fun. You can create any number of gravity-defying illusions that will amaze you and your friends: Levitate, fly, swim though the air, grow limbs (and dissolve them), crawl straight up the wall like a lizard—the sky’s the limit.