THE TANGRAM is one of the oldest types of dissection puzzles in the world that originated from China. It traditionally requires the participant to arrange seven pieces (or 'tans') into a shape just by looking at the given silhouette.LEARN WHILE PLAYING The puzzles in this unique book are fresh, innovative and compelling. The puzzle pieces are building units for puzzles that boost mental dexterity with a variety of challenges from various fields of recreational mathematics. Come on and play...

LEARN SHORTCUTS Many of the puzzles will seem as though they will take longer than two minutes to solve, but ... there are shortcuts if you can find them!! There are faster ways to solve each problem and dilemma. The Two-Minute Puzzle Book will teach you to look for such loopholes and shortcuts!ENGAGING THEMATIC PUZZLES From Chapter One's 'The One and Only' through Chapter Nine's 'The Whole Nine Yards', each chapter contains puzzles related to the chapter's theme. For example, in the secon...

A NEW TWIST ON A POPULAR PUZZLE CUBE! Invented by Piet Hein, the Soma cube is one of the most famous mechanical puzzles in the world. The traditional challenge and outcome is to build a cube or other structures from all seven pieces.CHANGE THE RULES, CHANGE THE OUTCOME! The puzzles in this unique Soma-inspired collection are no longer predicated upon using all seven pieces at one time! By varying the number of pieces, there are many new and versatile puzzle challenges, from all types of re...

'This is a marvellous book. The diversity of possible puzzles that can be given with these very limited resources, which are basically some paper and scissors, is overwhelming, and the challenges are sometimes very tough. Even the two-star problems may be hard for an untrained puzzler. This is medicine against boredom on long rainy days, but be careful not to get addicted or it may suck up your less empty and sunny days as well.' See Full ReviewEuropean Mathematical Society...

Praise for Star Ware"Star Ware is still a tour de force that any experienced amateur will find invaluable, and which hardware-minded beginners will thoroughly enjoy."- Robert Burnham, Sky & Telescope magazine"Star Ware condenses between two covers what would normally take a telescope buyer many months to accumulate."- John Shibley, Astronomy magazineWhether you're shopping for your first telescope or your fifth, don't be surprised if you feel overwhe...

Life Lessons: Learn How to Capture a World Constantly in MotionFluid, fast and expressive life drawing starts here. Step by step, you'll learn to render fleeting gestures from memory, capture expressions simply and more quickly, give your drawing a life of its own with body language, and more. Along the way, you'll develop a more spontaneous approach for successfully working from life.Inside you'll find:• A comprehensive course on drawing from life,...

Traditional IQ books are for those with a Mensa mentality. This compilation is for ordinary people who want to enhance essential brain functions, such as concentration, memory, and creativity. Uniquely, this book focuses on left-brain and right-brain puzzles, giving a complete mental workout. You'll love the variety of puzzle types: Odd One Out, In Sequence, Folding Cubes, and memory puzzles. All puzzles are fully explained with examples and solutions provided at the outset. No trick quest...

Master perspective like the pros! Vanishing Point shows you how to conquer the fundamentals of perspective drawing and then equips you with technical tricks and tools that make dynamic and complex scenes a snap. This complete guide helps you build your understanding of perspective to an intuitive level so you can draw anything you can imagine. Inside you'll find:• Complete instruction on drawing in one-, two- and three-point perspective and four- and five-point curvilinear...

Robotics is a key technology in the modern world. Robots are a well-established part of manufacturing and warehouse automation, assembling cars or washing machines, and, for example, moving goods to and from storage racks for Internet mail order. More recently robots have taken their first steps into homes and hospitals, and seen spectacular success in planetary exploration. Yet, despite these successes, robots have failed to live up to the predictions of the 1950s and 60s, when it was wid...

Once, robots were only found in science fiction books and movies. Today, robots are everywhere! They assemble massive cars and tiny computer chips. They help doctors do delicate surgery. They vacuum our houses and mow our lawns. Robot toys play with us, follow our commands, and respond to our moods. We even send robots to explore the depths of the ocean and the expanse of space. In Robotics, children ages 9 and up learn how robots affect both the future and the present. Hands-on a...

Take Your Imagination to Another Dimension This wickedly inventive guide explores the art and science of holography and shows you how to create your own intriguing holograms using inexpensive materials. Holography Projects for the Evil Genius explains the tools and techniques you need to know to represent three dimensions on a flat, two-dimensional plane. Using easy-to-find components and equipment, this do-it-yourself book presents a wide variety of holography projects-...

Unit conversions refer to the sometimes annoying, occasionally tricky, but ultimately necessary process of attaching proper words with proper numbers to get right solutions in science and engineering tasks. For students taking courses in science, getting these right translates to points and grades. This short "how to" manual leads readers through the process of doing unit conversions correctly.