Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers, and—maybe for the first time—make mathematics fun.Yes, even you can learn to do seemingly complex equations in your head; all you need to learn are a few tricks. You’ll be able to quickly multiply and divide triple digits, compute with fractions, and determine squares, cubes, and roots without blinking an eye. No matter what your age or current math ability, Secrets of Mental Math will allow you to perform fantastic feats of the mind effortlessly. This is the math they never taught you in school.Also available as an eBook

    Following the story of marine biologist and animal advocate at the Humane Society of the US, Naomi Rose, Kirby tells the gripping story of the two-decade fight against PR-savvy SeaWorld, which came to a head with the tragic death of trainer Dawn Brancheau in 2010. Kirby puts that horrific animal-on-human attack in context. Brancheau’s death was the most publicized among several brutal attacks that have occurred at Sea World and other marine mammal theme parks. Death at SeaWorld introduces real people taking part in this debate, from former trainers turned animal rights activists to the men and women that champion SeaWorld and the captivity of whales. In section two the orcas act out. And as the story progresses and orca attacks on trainers become increasingly violent, the warnings of Naomi Rose and other scientists fall on deaf ears, only to be realized with the death of Dawn Brancheau. Finally he covers the media backlash, the eyewitnesses who come forward to challenge SeaWorld’s glossy image, and the groundbreaking OSHA case that challenges the very idea of keeping killer whales in captivity and may spell the end of having trainers in the water with the ocean’s top predators.

    This full color book teaches you fundamental programming and robotics skills as you build and program powerful robots that move, monitor sensors, and respond to their environments. You will build seven increasingly sophisticated robots like the BRICK SORT3R (a robot that sorts bricks by color and size), the THE SNATCH3R (an autonomous robotic arm), and LAVA R3X (a humanoid that walks and talks). Valk also covers more advanced programming techniques like data wires and variables, and shows you how to create custom remote control programs. More than 100 building and programming challenges throughout encourage you to think creatively and to apply what you've learned to invent your own robots.

    They loved and acquired cats—a habit written about previously in their book, Cat People—and the few in residence at this time would serve as inspiration for the drawings. These are no ordinary cat illustrations, though. Korda’s cats read newspapers and books; go ice skating in the small country town where they live; comfort Margaret’s horse, Monty, after a stressful vet visit; sell fried mice at the Farmer’s Market, and undertake (on paper, at least) whatever fanciful endeavors their keeper conjures up.  The result is a collection of magical pieces, filled with joy, that represent a year in the life of a couple in love with one another, and certainly with their cats.

    Now William Dunham gives them the attention they deserve.Dunham places each theorem within its historical context and explores the very human and often turbulent life of the creator — from Archimedes, the absentminded theoretician whose absorption in his work often precluded eating or bathing, to Gerolamo Cardano, the sixteenth-century mathematician whose accomplishments flourished despite a bizarre array of misadventures, to the paranoid genius of modern times, Georg Cantor. He also provides step-by-step proofs for the theorems, each easily accessible to readers with no more than a knowledge of high school mathematics.A rare combination of the historical, biographical, and mathematical, Journey Through Genius is a fascinating introduction to a neglected field of human creativity.

    But, Alex Bellos says, "math can be inspiring and brilliantly creative. Mathematical thought is one of the great achievements of the human race, and arguably the foundation of all human progress. The world of mathematics is a remarkable place."Bellos has traveled all around the globe and has plunged into history to uncover fascinating stories of mathematical achievement, from the breakthroughs of Euclid, the greatest mathematician of all time, to the creations of the Zen master of origami, one of the hottest areas of mathematical work today. Taking us into the wilds of the Amazon, he tells the story of a tribe there who can count only to five and reports on the latest findings about the math instinct--including the revelation that ants can actually count how many steps they've taken. Journeying to the Bay of Bengal, he interviews a Hindu sage about the brilliant mathematical insights of the Buddha, while in Japan he visits the godfather of Sudoku and introduces the brainteasing delights of mathematical games.Exploring the mysteries of randomness, he explains why it is impossible for our iPods to truly randomly select songs. In probing the many intrigues of that most beloved of numbers, pi, he visits with two brothers so obsessed with the elusive number that they built a supercomputer in their Manhattan apartment to study it. Throughout, the journey is enhanced with a wealth of intriguing illustrations, such as of the clever puzzles known as tangrams and the crochet creation of an American math professor who suddenly realized one day that she could knit a representation of higher dimensional space that no one had been able to visualize. Whether writing about how algebra solved Swedish traffic problems, visiting the Mental Calculation World Cup to disclose the secrets of lightning calculation, or exploring the links between pineapples and beautiful teeth, Bellos is a wonderfully engaging guide who never fails to delight even as he edifies. "Here's Looking at Euclid "is a rare gem that brings the beauty of math to life.

    The last thing Gwen Cooper wanted was another cat. She already had two, not to mention a phenomenally underpaying job and a recently broken heart. Then Gwen’s veterinarian called with a story about a three-week-old eyeless kitten who’d been abandoned. It was love at first sight.Everyone warned that Homer would always be an "underachiever," never as playful or independent as other cats. But the kitten nobody believed in quickly grew into a three-pound dynamo, a tiny daredevil with a giant heart who eagerly made friends with every human who crossed his path. Homer scaled seven-foot bookcases with ease and leapt five feet into the air to catch flies in mid-buzz. He survived being trapped alone for days after 9/11 in an apartment near the World Trade Center, and even saved Gwen’s life when he chased off an intruder who broke into their home in the middle of the night.But it was Homer’s unswerving loyalty, his infinite capacity for love, and his joy in the face of all obstacles that inspired Gwen daily and transformed her life. And by the time she met the man she would marry, she realized Homer had taught her the most important lesson of all: Love isn’t something you see with your eyes.Homer’s Odyssey is the once-in-a-lifetime story of an extraordinary cat and his human companion. It celebrates the refusal to accept limits—on love, ability, or hope against overwhelming odds. By turns jubilant and moving, it’s a memoir for anybody who’s ever fallen completely and helplessly in love with a pet.

    Python is considered easy to learn, but there's no quicker way to mastery of the language than learning from an expert teacher. This edition of "Learning Python" puts you in the hands of two expert teachers, Mark Lutz and David Ascher, whose friendly, well-structured prose has guided many a programmer to proficiency with the language. "Learning Python," Second Edition, offers programmers a comprehensive learning tool for Python and object-oriented programming. Thoroughly updated for the numerous language and class presentation changes that have taken place since the release of the first edition in 1999, this guide introduces the basic elements of the latest release of Python 2.3 and covers new features, such as list comprehensions, nested scopes, and iterators/generators. Beyond language features, this edition of "Learning Python" also includes new context for less-experienced programmers, including fresh overviews of object-oriented programming and dynamic typing, new discussions of program launch and configuration options, new coverage of documentation sources, and more. There are also new use cases throughout to make the application of language features more concrete. The first part of "Learning Python" gives programmers all the information they'll need to understand and construct programs in the Python language, including types, operators, statements, classes, functions, modules and exceptions. The authors then present more advanced material, showing how Python performs common tasks by offering real applications and the libraries available for those applications. Each chapter ends with a series of exercises that will test your Python skills and measure your understanding."Learning Python," Second Edition is a self-paced book that allows readers to focus on the core Python language in depth. As you work through the book, you'll gain a deep and complete understanding of the Python language that will help you to understand the larger application-level examples that you'll encounter on your own. If you're interested in learning Python--and want to do so quickly and efficiently--then "Learning Python," Second Edition is your best choice.

    With a special emphasis on the benefits and joys of adopting abandoned cats, these stories will make you laugh out loud, nod your head in recognition, and maybe even shed a tear or two. And your purchase will help support the great work of the American Humane Association!

     And You're About to Learn How to Use His Memory Strategies to Learn Faster, Be More Productive and Achieve More Success Most people never tap into 10% of their potential for memory. In this book, you're about to learn: How the World's Top Memory Experts Concentrate and Remember Any Information at Will, and How You Can Too Do you ever feel like you're too busy, too stressed or just too distracted to concentrate and get work done? In Unlimited Memory, you'll learn how the world's best memory masters get themselves to concentrate at will, anytime they want. When you can easily focus and concentrate on the task at hand, and store and recall useful information, you can easily double your productivity and eliminate wasted time, stress and mistakes at work. In this book, you'll find all the tools, strategies and techniques you need to improve your memory. About the Author For over 20 years, KEVIN HORSLEY has been analyzing the mind and memory and its capacity for brilliance. He is one of only a few people in the world to have received the title International Grandmaster of Memory. He is a World Memory Championship medalist, and a two-time World Record holder for The Everest of memory tests. Kevin is also an author of four books, and the designer of a times table game with the Serious Games Institute at North-West University Vaal Campus. Kevin is a professional speaker, and assists organizations in improving their learning, motivation, creativity, and thinking.

    . . a book that enriches our understanding of how the struggle to think new thoughts is shared across time and space and people.”—The Sunday Telegraph (London)Christmas, 1859. Just one month after the publication of On the Origin of Species, Charles Darwin received an unsettling letter. He had expected criticism; in fact, letters were arriving daily, most expressing outrage and accusations of heresy. But this letter was different. It accused him of failing to acknowledge his predecessors, of taking credit for a theory that had already been discovered by others. Darwin realized that he had made an error in omitting from Origin of Species any mention of his intellectual forebears. Yet when he tried to trace all of the natural philosophers who had laid the groundwork for his theory, he found that history had already forgotten many of them.Darwin’s Ghosts tells the story of the collective discovery of evolution, from Aristotle, walking the shores of Lesbos with his pupils, to Al-Jahiz, an Arab writer in the first century, from Leonardo da Vinci, searching for fossils in the mine shafts of the Tuscan hills, to Denis Diderot in Paris, exploring the origins of species while under the surveillance of the secret police, and the brilliant naturalists of the Jardin de Plantes, finding evidence for evolutionary change in the natural history collections stolen during the Napoleonic wars. Evolution was not discovered single-handedly, Rebecca Stott argues, contrary to what has become standard lore, but is an idea that emerged over many centuries, advanced by daring individuals across the globe who had the imagination to speculate on nature’s extraordinary ways, and who had the courage to articulate such speculations at a time when to do so was often considered heresy.With each chapter focusing on an early evolutionary thinker, Darwin’s Ghosts is a fascinating account of a diverse group of individuals who, despite the very real dangers of challenging a system in which everything was presumed to have been created perfectly by God, felt compelled to understand where we came from. Ultimately, Stott demonstrates, ideas—including evolution itself—evolve just as animals and plants do, by intermingling, toppling weaker notions, and developing over stretches of time. Darwin’s Ghosts presents a groundbreaking new theory of an idea that has changed our very understanding of who we are.

    In every age, in every part of the world, people have pursued intoxication with plants, alcohol, and other mind-altering substances. In fact, this behavior has so much force and persistence that it functions much like our drives for food, sleep, and sex. This "fourth drive," says psychopharmacologist Ronald K. Siegel, is a natural part of our biology, creating the irrepressible demand for intoxicating substances.In Intoxication Siegel draws upon his 20 years of groundbreaking research to provide countless examples of the intoxication urge in humans, animals, and even insects. The detailed observations of his so-called psychonauts--study participants trained to explicitly describe their drug experiences--as well as numerous studies with animals have helped him to identify the behavior patterns induced by different intoxicants. Presenting his conclusions on the biological as well as cultural reasons for the pursuit of intoxication and showing that personality and guidance often define the outcome of a drug experience, Siegel offers a broad understanding of the intoxication phenomenon as well as recommendations for curbing the negative aspects of drug use in Western culture by designing safe intoxicants.

    Text and illustrations combine to provide a comprehensive look at all aspects of the cat A one-stop reference guide to the main breeds, illustrated with 1,000 photographs and line drawings Easy-to -use icons provide information on size, coat care, and feeding Identification boxes list common name, other name, average height, and color variations Introductory sections give information about cat anatomy and history

    It is often rational to act against our own best interests, he argues, and most of us have moralviews that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions that most of us will find very disturbing.

    While it's true that we live in an age when we're as obsessed with our bodies as we are with celebrity hairstyles, the reality is that most of us know very little about what chugs, churns, and thumps throughout this miraculous, scientific, and artistic system of anatomy. Yes, you've owned your skin-covered shell for decades, but you probably know more about your cell-phone plan than you do about your own body. When it comes to your longevity and quality of life, understanding your internal systems gives you the power, authority, and ability to live a healthier, younger, and better life. "You: The Owner's Manual" challenges your preconceived notions about how the human body works and ages, then takes you on a tour through all of the highways, back roads, and landmarks inside of you. After taking a quiz that tests your body of knowledge, you'll learn about all of your blood-pumping, food-digesting, and keys-remembering systems and organs.Just as important, you'll get the facts and advice you need to keep your body running long and strong. You'll find out how diseases start and how they affect your body -- as well as advice on how to prevent and beat conditions that threaten your quality of life. Complete with exercise tips, nutritional guidelines, simple lifestyle changes, and alternative approaches, "You: The Owner's Manual" gives you an easy, comprehensive, and life-changing how-to plan for fending off the gremlins of aging. To top it off, you'll also get the great-tasting and calorie-saving Owner's Manual Diet -- a thirty-recipe eating plan that's designedwith only one goal in mind: to help you live a younger life.Welcome to your body. Why don't you come on in and take a look around?