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.

    George Kennedy Supervising Engineer, Overseas Telecommunications Commission, Australia.

    This text covers the basics of emerging areas in power electronics and a broad range of topics such as power switching devices, conversion methods, analysis and techniques, and applications. Its unique approach covers the characteristics of semiconductor devices first, then discusses the applications of these devices for power conversions. Four main applications are included: flexible ac transmissions (FACTs), static switches, power supplies, dc drives, and ac drives. - New chapters - Including Ch. 9, Multilevel Inverters, Ch. 13, Flexible AC Transmission Systems, and Ch. 17, Gate Drive Circuits.', gives students the latest information available on these topics. - New sections throughout - Including Semiconductor Basics, State-Space Analysis of Regulators, Vector Controls, Stepper Motor Control and more, gives students the latest information available on these topics. - Well-written and easy-to-follow, helps students maintain interest in the text. - Numerous worked-out examples, demonstrates for students the applications of conversion techniques in design and analysis of converter cir

    Yet recent theories suggest that there is far more to the universe than what our instruments record--in fact, it could be infinite. Colossal flows of galaxies, large empty regions called voids, and other unexplained phenomena offer clues that our own "bubble universe" could be part of a greater realm called the multiverse. How big is the observable universe? What it is made of? What lies beyond it? Was there a time before the Big Bang? Could space have unseen dimensions? In this book, physicist and science writer Paul Halpern explains what we know--and what we hope to soon find out--about our extraordinary cosmos.Explains what we know about the Big Bang, the accelerating universe, dark energy, dark flow, and dark matter to examine some of the theories about the content of the universe and why its edge is getting farther away from us fasterExplores the idea that the observable universe could be a hologram and that everything that happens within it might be written on its edgeWritten by physicist and popular science writer Paul Halpern, whose other books include "Collider: The Search for the World's Smallest Particles," and "What's Science Ever Done For Us: What the Simpsons Can Teach Us About Physics, Robots, Life, and the Universe"

    In this experiment, a particle going through one of a pair of holes seems to be aware of what is going on at the other hole, and changes its behaviour according to whether that hole is open or closed. This is closely linked to the puzzle of entanglement, where one particle instantly reacts to what is happening to another particle, even when they are widely separated. And in a final example of the mind-boggling nature of the quantum world, these effects seem to operate across time as well as space: What is going to happen in the future affects the behaviour of a particle now. In The Quantum Mystery, John Gribbin, the best-selling author of In Search of Schrödinger’s Cat, describes the history of the double-slit experiment, the wave-particle duality of the quantum world, and the latest experiments which show these bizarre effects at work before our very eyes.

    In The Physics of Star Wars, you’ll explore the mystical power of the Force using quantum mechanics, find out how much energy it would take for the Death Star or Starkiller Base to destroy a planet, and discover how we can potentially create our very own lightsabers. The fantastical world of Star Wars may become a reality!

    Professor Drezner takes you behind the headlines and into the debates to dispel common myths about prosperity and get at deeper truths. By taking a broad view of economics that includes psychology, sociology, political science, and history, his lectures lead you to fundamental insights about how the modern world works and a deeper understanding of the functioning of the U.S., European, Chinese, and other major economies, as well as an appreciation for the special problems faced by underdeveloped nations. You'll examine dozens of case histories that illustrate what works and doesn't work in the drive to increase economic growth. You'll also learn about intriguing examples of prosperity won or lost, including the Dutch tulip mania in 1637, the era of globalization that started in the 1850s and lasting through World War I, and Ukraine's economic missteps after the breakup of the Soviet Union. As a start on your own road to greater prosperity, take this step to invest in an unparalleled explanation of the prerequisites to achieve it.

    Tens of thousands of readers have enjoyed The Quotable Einstein and The Expanded Quotable Einstein, with translations into twenty-two languages. This updated edition--which appears on the 100th anniversary of Einstein's Special Theory of Relativity and the 50th anniversary of Einstein's death--offers more than 300 new quotations, or over 1,200 altogether. Nearly all are by Einstein himself and a few are about the self-professed lone wolf Time magazine named Man of the Century at the turn of the millennium.The New Quotable Einstein also includes a new section, On Aging, and fresh material has been added to the appendix-from a touching account by Helen Dukas of Einstein's last days to a day-by-day summary of Johanna Fantova's telephone conversations with Einstein during the final year and a half of his life.Also included are a poem called Einstein, by Robert Service; and three virtually unknown verses to the song As Time Goes By (made famous in the movie Casablanca) that refer to Einstein. New photographs have been selected to introduce each section of the book.Through well-documented quotations and supplementary information, The New Quotable Einstein provides a bigger and better biographical account of this multifaceted man-as son, husband, father, lover, scientist, philosopher, aging widower, humanitarian, and friend. It shows us even more vividly why the real and imagined Einstein continues to fascinate people across the world into the twenty-first century.300-plus new quotations, more than 1,200 in allA day-by-day summary of Johanna Fantova's phone conversations with Einstein toward the end of his lifeA touching account of Einstein's last daysA new section, On AgingThree virtually unknown original verses of the song As Time Goes By (from the movie Casablanca) that refer to EinsteinRobert Service's poem Einstein-- "New Scientist"

    Covering Sid's early years in South Africa and life as a ladies' hairdresser, his obsession with gambling and women, his questioning by Scotland Yard in a murder case, Hancock's Half Hour and the Carry On films, and Sid's death on stage at the age of 63, Cliff Goodwin reveals the amazing truth behing the legend.

    Barry Parker highlights famous battles of the past as well as renowned scientists and inventors such as Leonardo, Galileo, Newton, Maxwell, and Einstein whose work had an impact on the technology of combat. Mechanics and the laws of motion led to improved shell trajectories; gas dynamics proved important to the interior ballistics of rifles and cannons; and space exploration resulted in intercontinental missiles, spy satellites, and drone aircraft.     Parker emphasizes the special discoveries that had revolutionary effects on the art of warfare: the Chinese invention of gunpowder, the development of firearms, the impact of the Industrial Revolution, the deployment of the airplane in the First World War, and in our era the unleashing of the enormous power inherent in nuclear fission and fusion.

    Today, scientists are attempting to measure the entire universe and to determine its origin. Although the methods have changed, the quest to chart the horizons of space and time continues to be one of the great adventures of science.Measuring the Universe is an eloquent chronicle of the men and women– from Aristarchus to Cassini, Sir Isaac Newton to Henrietta Leavitt and Stephen Hawking–who have gradually unlocked the mysteries of "how far" and in so doing have changed our ideas about the size and nature of the universe and our place in it. Kitty Ferguson reveals their methods to have been as inventive as their results were–and are–eye-opening. Advances such as Copernicus's revolutionary insights about the arrangement of the solar system, William Herschel's meticulous creation of the first three-dimensional map of the universe, and Edwin Hubble's astonishing discovery that the universe is expanding have by turns revolutionized our concept of the universe. Connecting centuries of breakthroughs with the political and cultural events surrounding them, Ferguson makes astronomy part of the sweep of history.To measure the seemingly immeasurable, scientists have always pushed the boundaries of the imagination–today, for example, facing the paradox of an ever-expanding universe that doesn't appear to expand into anything. In Kitty Fergeson's skillfill hands, the unimaginable becomes accessible and the splendid quest something we all can share.

    

    It is a comprehensive account of present-day English that is chiefly focused on the standard varieties of American and British English, but it also refers frequently to non-standard varieties and it draws on the history of the language to illuminate and explain features of English of today. It offers a description of the language and is not intended to prescribe or proscribe. This work is unique in its coverage for native speakers of the language. It is written to be accessible to non-specialists, but students of the English language and related subjects will also find it of interest and value. It serves as a reference work and can also be used as a textbook. Each chapter is prefaced by a list of contents and a summary of the chapter. You may wish to read through a whole chapter or to consult particular sections. The Glossary at the end of the book will provide you with succinct explanations of terms that are frequently used in the book.

    A man of faith ordained in the Protestant tradition, Heino Falcke wrestles with the ways in which black holes force us to confront the boundary where human life ends and the celestial begins. He also ponders why black holes are difficult for most of us to understand—comparing it to our inability to envisage our own inevitable death.Black holes develop in outer space when a massive star dies, and its matter is condensed. That extreme amount of mass contained in a small space generates a gigantic amount of gravitational force, allowing the black hole to suck up everything that comes near, including light. These astronomical wonders are the subject of our greatest scientific and philosophical theorizing—the journey to a black hole would be the journey to the end of time itself. In this way, Falcke regards them as the most exquisite representations of fear, death . . . and, surprisingly, the divine.Empirical and profound, A Light in the Darkness is the first work to examine both the physical nature and spiritual meaning of black holes, those astrophysical mysteries Falcke, calls “the epitome of merciless destruction.”

    From Hesiod's Chaos, described in his poem about the origins of the Greek gods, Theogony, to today's mind-bending theories of the multiverse, humans have been consumed by the relentless pursuit of an answer to one awe inspiring question: What exactly happened during those first moments?Guido Tonelli, the acclaimed, award-winning particle physicist and a central figure in the discovery of the Higgs boson (the "God particle"), reveals the extraordinary story of our genesis--from the origins of the universe, to the emergence of life on Earth, to the birth of human language with its power to describe the world. Evoking the seven days of biblical creation, Tonelli takes us on a brisk, lively tour through the evolution of our cosmos and considers the incredible challenges scientists face in exploring its mysteries. Genesis both explains the fundamental physics of our universe and marvels at the profound wonder of our existence.