Search results for ""Author Al Seckel""

Inside the covers of this incredible, colourful collection are hundreds of the world's most powerful optical illusions. Some of the mind-boggling images seem to spring into action, vibrating, pulsing, and spinning like a hula hoop. Other ambiguous illusions feature two subjects in one and images like "The Impossible Terrace," which couldn't exist off the page: just try to figure out if you're viewing the space from above or below. Every one is astonishing.

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This intriguing collection contains more than 275 optical illusions that appear to change before your eyes. Al Seckel carefully selected both well-known images, such as Shepard's tabletop, Wade's spiral, Ames room and Rubin's face/vase, and many lesser-known, but no less effective, illusions. Every type of optical illusion is here, along with notes about the science of each visual perception and how the illusions work. Among the baffling images and shapes are: Figure/ground illusions, in which one shape switches into another then back again; Ambiguous figures; Impossible objects; Trompe l'oeil; Stereo illusions. With illusions rendered in photography, artwork and computer imaging, and a huge variety of themes and effects, Optical Illusions dazzles both the mind and the eye.

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