Do all problems have solutions? Is complexity synonymous with difficulty? This original collection of mathematical puzzles and paradoxes proves that things aren't always what they seem! Readers will discover that nothing is as easy or as difficult as it looks and that puzzles can have one, several, or no solutions. The fun-filled puzzles begin with The Tricky Hole, a challenge that involves pushing a large coin through a small hole in a sheet of paper without ripping or making any cuts in the paper. Advance to the Elastic Playing Card, in which it's possible to cut a hole into a playing card big enough for someone to climb through. Other incredible puzzles include Elephants and Castles, Trianglized Kangaroo, Honest Dice and Logic Dice, Mind-reading Powers, and dozens more. Complete solutions explain the mathematical realities behind the fantastic-sounding challenges.
Treasury of 300 puzzles features 3D and chess puzzles, connections, dissections, foldings, geometrical and number puzzles, logic problems, matchstick puzzles, mazes, moving pieces, put-togethers, strimkos, sudoku, and visual and word puzzles.
Fool your brain with mind-boggling illusions, then get hands-on and make your own to wow your friends! Learn all about the science behind these wacky phenomena, from moving liquid on a page, to shapes that disappear in front of your eyes with this clever guide. The brain is an amazing thing, but it doesn't always get things right when it comes to sight. This book is here to explain why, with astounding images, baffling puzzles, and simple reveals which show the reader how each trick works. Covering a range of optical topics, from shapes and movement, to light and reflection, this cool manual contains templates at the back which reveal answers and help you to create your own astounding illusions.
Contains a collection of over 200 unusual illusions including hidden objects, color and brightness effects, illusory moving patterns, and image paradoxes.
An interactive activity and coloring book featuring 50-plus "impossible" optical illusions to color along with, and activities that show kids how to create their own optical illusions.
Gianni Sarcone offers an approachable how-to for graphic designers, teachers, and artists who want to explore illusions that are distorted in size or create the perception of movement. Amateur illusionists are invited to draw curves that diverge and converge, diamonds that vibrate and flicker, hypnotic spirals, ghosts, and ambiguous figures, and many other visual tricks.
Contains more than 150 colorful optical illusions just waiting to blur your vision and put your brain in a spin! This book is great for adults and children alike, and the authors explain why it is that your brain and eyes can be fooled so easily.
Containing many new optical illusions, as well as new adaptations of lesser-known optical illusions, this title carries an explanation of how each image works - the story behind it, when it was discovered or who invented it first, and details of why it fools the human brain.
They are right before your eyes, but your brain can be tricked into seeing something entirely different, or not seeing it altogether. They hide secrets in plain sight. Here are 135 of the most interesting and challenging optical illusions from one of the masters of the art. Start easy, and go up the ladder of difficulty to test your powers of visual perception. All the answers are there, as well as the explanations of why and how things can be seen.
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