optical illusions

"Optical illusions happen when we perceive something that's not there or that appears to differ from reality. Scientists divide them into three different categories: optical, perceptual, and cognitive. Readers will be delighted to learn how all kinds of optical illusions work and how they can amaze their friends with the experiments in this entertaining volume. They'll learn how to make a sequence of drawings seem to come to life, how to make a drawing appear 3D, how to draw the 'impossible' Penrose triangle, and more"--OCLC.

Provides a collection of "magic eye" optical illusions in which readers place their eyes close to the page then pull the book slowly back to reveal a "hidden" 3D image.

Presents an illustrated collection of optical illusion puzzles.

What concepts are behind the creation of cartoons and the ability to seemingly make a dot on a page disappear? Readers will learn the answers through the ten hands-on activities featured in this intriguing title. Each optical illusion is broken down using step-by-step instructions paired with helpful illustrations. Accessible text reveals the important scientific ideas behind each activity, such as the principles of human vision, perception, and light.

Examines the ways magicians use principles that apply to human behavior and perception in order to perform their tricks, and covers how magic pertains to the functioning of the brain in everyday situations; marketing and sales techniques; and education; and possibly even offers new approaches to the diagnosis of autism.

"What concepts are behind the creation of cartoons and the ability to seemingly make a dot on a page disappear? Readers will learn the answers through the ten hands-on activities featured in this . . . title. Each optical illusion is broken down using step-by-step instructions paired with . . . illustrations. Accessible text reveals the . . . scientific ideas behind each activity, such as the principles of human vision, perception, and light"--Provided by publisher.

Presents a collection of over thirty visual tricks and illusions involving colors, shapes, patterns, and perspective. Includes 3-D glasses, a spinning disk, and an answer key.

Optical illusions happen when we perceive something that?s not there or that appears to differ from reality. Scientists divide them into three different categories: optical, perceptual, and cognitive. Readers will be delighted to learn how all kinds of optical illusions work and how they can amaze their friends with the experiments in this entertaining volume. They?ll learn how to make a sequence of drawings seem to come to life, how to make a drawing appear 3D, how to draw the ?impossible? Penrose triangle, and much, much more. All activities and experiments are explained step by step through comprehensible and accessible text.

Presents visual puzzles and optical illusions, using the rules of perspective and visual perception to trick the mind.