A set of 50 of the most amazing optical illusions ever created. Each card has a mind-boggling illusion on one side and an explanation of how it works on the other. Includes a “revealer” card to help check colours and take measurements to show that seeing really is believing.
The easy way to shed light on Optics In general terms, optics is the science of light. More specifically, optics is a branch of physics that describes the behavior and properties of light including visible, infrared, and ultraviolet and the interaction of light with matter. Optics For Dummies gives you an approachable introduction to optical science, methods, and applications. You'll get plain-English explanations of the nature of light and optical effects; reflection, refraction, and diffraction; color dispersion; optical devices, industrial, medical, and military applications; as well as laser light fundamentals.
Tired of the same old picture puzzles? Looking for a new twist on brain teasers? Then try these on for size! These puzzles challenge your ability to perceive and manipulate forms and shapes. Learn to use logical deduction and spatial perception as puzzle-solving weapons! "...true brain food..."--Chicago Tribune.
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Precise line drawings and complete instructions show you how to amaze your friends with 'impossible' card tricks, by 'growing' a new finger or by bending a spoon without denting it! Grade 5-10
