We often overlook the historical link between mathematics and technological advances, says Stewart—but this connection is integral to any complete understanding of human history.Equations are modeled on the patterns we find in the world around us, says Stewart, and it is through equations that we are able to make sense of, and in turn influence, our world. Stewart locates the origins of each equation he presents—from Pythagoras's Theorem to Newton's Law of Gravity to Einstein's Theory of Relativity—within a particular historical moment, elucidating the development of mathematical and philosophical thought necessary for each equation's discovery. None of these equations emerged in a vacuum, Stewart shows; each drew, in some way, on past equations and the thinking of the day. In turn, all of these equations paved the way for major developments in mathematics, science, philosophy, and technology. Without logarithms (invented in the early 17th century by John Napier and improved by Henry Briggs), scientists would not have been able to calculate the movement of the planets, and mathematicians would not have been able to develop fractal geometry. The Wave Equation is one of the most important equations in physics, and is crucial for engineers studying the vibrations in vehicles and the response of buildings to earthquakes. And the equation at the heart of Information Theory, devised by Claude Shannon, is the basis of digital communication today.An approachable and informative guide to the equations upon which nearly every aspect of scientific and mathematical understanding depends, In Pursuit of the Unknown is also a reminder that equations have profoundly influenced our thinking and continue to make possible many of the advances that we take for granted.

    

    Maybe your teacher took the controversial stand that the Civil War was all about states’ rights… or maybe you learned all about the horrors slavery, but never quite figured out why things didn’t get better after the war ended. If you didn’t go to school in the United States, things are even more confusing. When the media is full of references to the Confederate flag, the legacy of slavery, and poverty in the American South, you might have a vague sense that things are bad because of the Civil War… but why? Why does a war that happened over a hundred and fifty years ago still cast a shadow over the United States? This book will tell you why. It will lead you, step-by-step, through the causes of the Civil War, and the effects. But unlike your high school history teacher, it won’t put you to sleep with long-winded biographies and lists of dates. The names you’ll learn are the big players, the ones with big personalities, who made big differences. In just a few minutes a day, you can read bite-sized stories from the Civil War – quick, easy explanations to guide you through the main points, with just enough scary, surprising, or just plain strange facts to keep you coming back for more. Each chapter ends with a bonus helping of trivia and some quick questions to test your knowledge. By the time you’re finished, you’ll know all the facts your history teacher never taught you – from who said slavery was a “positive good” (and why they thought that), to who dressed up in women’s clothing to escape from Union soldiers.

    Moreover, the achievements of the early people of Africa are as amazing and inspiring as the achievements of any other people.This history is much older than the Trans-Atlantic Slave Trade.The author introduces his readers to the early civilizations of Africa that existed long before the coming of the Europeans. Among these were the Songhai Empire, the Benin Empire, the Kanem-Borno Empire, the Monomotapa Empire, the Swahili Confederation, the Medieval Nubian kingdoms and the Axumite Empire.The author also introduces the ancient civilizations of Africa particularly those of the Nile Valley such as Nubia and Ancient Egypt.The book is illustrated with 18 images and maps. Finally, the book recommends other books for more in depth study.

    This text provides a simple and straightforward introduction to econometrics for the beginner. The book is designed to help students understand econometric techniques through extensive examples, careful explanations, and a wide variety of problem material. In each of the editions, I have tried to incorporate major developments in the field in an intuitive and informative way without resort to matrix algebra, calculus, or statistics beyond the introductory level. The fourth edition continues that tradition.

    Even when dealing with standard material, Stillwell manages to dramatize it and to make it worth rethinking. In short, his book is a splendid addition to the genre of works that build royal roads to mathematical culture for the many." (Mathematical Intelligencer)This second edition includes new chapters on Chinese and Indian number theory, on hypercomplex numbers, and on algebraic number theory. Many more exercises have been added, as well as commentary to the exercises explaining how they relate to the preceding section, and how they foreshadow later topics.

    Simmons advocates a careful approach to the subject, covering such topics as the wave equation, Gauss's hypergeometric function, the gamma function and the basic problems of the calculus of variations in an explanatory fashions - ensuring that students fully understand and appreciate the topics.

    His Incompleteness Theorem turned not only mathematics but also the whole world of science and philosophy on its head. Equally legendary were Gö's eccentricities, his close friendship with Albert Einstein, and his paranoid fear of germs that eventually led to his death from self-starvation. Now, in the first popular biography of this strange and brilliant thinker, John Casti and Werner DePauli bring the legend to life. After describing his childhood in the Moravian capital of Brno, the authors trace the arc of Gö's remarkable career, from the famed Vienna Circle, where philosophers and scientists debated notions of truth, to the Institute for Advanced Study in Princeton, New Jersey, where he lived and worked until his death in 1978. In the process, they shed light on Gö's contributions to mathematics, philosophy, computer science, artificial intelligence -- even cosmology -- in an entertaining and accessible way.

    By the time she was a young teenager, she was already making news and attracting attention. Taylor would go onto star in movies such as A Place in the Sun, Butterfield 8, Who's Afraid of Virginia Woolf?, and Cleopatra, where she played opposite Richard Burton. Her affair with Burton caused a worldwide scandal, and the movie almost ruined Twentieth Century Fox. Taylor and Burton were married and divorced twice, with the world watching their every scandalous move.In her fifties, when Taylor was no longer in demand for leading lady roles, she developed her own brand of perfumes and jewelry. These were so successful that she made more money from her brands than from her movies. She also became the voice for AIDS when everyone else in Hollywood ignored the subject. Her grandchildren have now taken over the Elizabeth Taylor AIDS Foundation and continue her work long after her death. Elizabeth Taylor, the “most beautiful woman in the world,” will continue to affect people for years to come.Discover a plethora of topics such as∙Born Beautiful∙Becoming Mrs. Hilton∙Cleopatra and Eddie Fisher∙On the Campaign Trail∙The Elizabeth Taylor AIDS Foundation∙Late Life and Death∙And much more!So if you want a concise and informative book on Elizabeth Taylor, simply scroll up and click the "Buy now" button for instant access!

    Based on the experience of the authors in teaching Mathematics Courses for almost four decades at the Institute of Technology, New Delhi, this text book rather than a guide/problem book, lays emphasis on the presentation of fundamentals and theoretical concepts in an intelligible and easy to understand manner.

    

    

    

    The Fourth Edition builds on this strength with new examples, additional applications and increased cryptology coverage. Up-to-date information on the latest discoveries is included.Elementary Number Theory and Its Applications provides a diverse group of exercises, including basic exercises designed to help students develop skills, challenging exercises and computer projects. In addition to years of use and professor feedback, the fourth edition of this text has been thoroughly accuracy checked to ensure the quality of the mathematical content and the exercises.

    It covered jazz, of course, but it also included Davis’s ruminations on race, politics and culture. Fascinated, Hef sent the writer—future Pulitzer-Prize-winning author Alex Haley, an unknown at the time—back to glean even more opinion and insight from Davis. The resulting exchange, published in the September 1962 issue, became the first official Playboy Interview and kicked off a remarkable run of public inquisition that continues today—and that has featured just about every cultural titan of the last half century.To celebrate the Interview’s 50th anniversary, the editors of Playboy have culled 50 of its most (in)famous Interviews and will publish them over the course of 50 weekdays (from September 4, 2012 to November 12, 2012) via Amazon’s Kindle Direct platform. Here is the interview with the novelist and philosopher Ayn Rand from the March 1964 issue.