Optical Illusion Experiments( Series - No-sweat Science )

Kids can be both scientists" and" magicians--all at once With just a little practice, and these 50 super experiments, they'll amaze people with fool-the-eye illusions that also illustrate basic principles of visual perception. They're amazingly cool, too, featuring tricks of motion; distortions of length and size; tilts, twists, and topsy-turvies that give a new slant on things; and fantastic flat-screen phantoms that play with illusions of depth.