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Books > Science & Mathematics > Astronomy, space & time > Cosmology & the universe
In the first fractions of a second after the Big Bang lingers a question at the heart of our very existence: why does the universe contain matter but almost no antimatter? The laws of physics tell us that equal amounts of matter and antimatter were produced in the early universe--but then something odd happened. Matter won out over antimatter; had it not, the universe today would be dark and barren. But how and when did this occur? In "The Mystery of the Missing Antimatter," Helen Quinn and Yossi Nir guide readers into the very heart of this mystery--and along the way offer an exhilarating grand tour of cutting-edge physics.
Covariant Physics: From Classical Mechanics to General Relativity and Beyond endeavours to provide undergraduate students as well as self-learners with training in the fundamentals of the modern theories of spacetime, most notably the general theory of relativity as well as physics in curved spacetime backgrounds in general. This text does so with the barest of mathematical preparation. In fact, very little beyond multivariable calculus and a bit of linear algebra is assumed. Throughout this textbook, the main theme tying the various topics is the so-called principle of covariance - a fundamental symmetry of physics that one rarely encounters in undergraduate texts. The material is introduced very gradually, starting with the simplest of high school mathematics, and moving through the more intense notions of tensor calculus, geometry, and differential forms with ease. Familiar notions from classical mechanics and electrodynamics are used to increase familiarity with the advanced mathematical ideas, and to emphasize the unity of all of physics under the single principle of covariance. The mathematical and physical techniques developed in this book should allow students to perform research in various fields of theoretical physics as early as their sophomore year in college. The language the reader will learn in this book is the foundational mathematical language of many modern branches of physics, and as such should allow them to read and generally understand many modern physics papers.
Applications of quantum field theoretical methods to gravitational physics, both in the semiclassical and the full quantum frameworks, require a careful formulation of the fundamental basis of quantum theory, with special attention to such important issues as renormalization, quantum theory of gauge theories, and especially effective action formalism. The first part of this graduate textbook provides both a conceptual and technical introduction to the theory of quantum fields. The presentation is consistent, starting from elements of group theory, classical fields, and moving on to the effective action formalism in general gauge theories. Compared to other existing books, the general formalism of renormalization in described in more detail, and special attention paid to gauge theories. This part can serve as a textbook for a one-semester introductory course in quantum field theory. In the second part, we discuss basic aspects of quantum field theory in curved space, and perturbative quantum gravity. More than half of Part II is written with a full exposition of details, and includes elaborated examples of simplest calculations. All chapters include exercises ranging from very simple ones to those requiring small original investigations. The selection of material of the second part is done using the "must-know" principle. This means we included detailed expositions of relatively simple techniques and calculations, expecting that the interested reader will be able to learn more advanced issues independently after working through the basic material, and completing the exercises.
Covariant Physics: From Classical Mechanics to General Relativity and Beyond endeavours to provide undergraduate students as well as self-learners with training in the fundamentals of the modern theories of spacetime, most notably the general theory of relativity as well as physics in curved spacetime backgrounds in general. This text does so with the barest of mathematical preparation. In fact, very little beyond multivariable calculus and a bit of linear algebra is assumed. Throughout this textbook, the main theme tying the various topics is the so-called principle of covariance - a fundamental symmetry of physics that one rarely encounters in undergraduate texts. The material is introduced very gradually, starting with the simplest of high school mathematics, and moving through the more intense notions of tensor calculus, geometry, and differential forms with ease. Familiar notions from classical mechanics and electrodynamics are used to increase familiarity with the advanced mathematical ideas, and to emphasize the unity of all of physics under the single principle of covariance. The mathematical and physical techniques developed in this book should allow students to perform research in various fields of theoretical physics as early as their sophomore year in college. The language the reader will learn in this book is the foundational mathematical language of many modern branches of physics, and as such should allow them to read and generally understand many modern physics papers.
Answers to science's most enduring questions from "Can I break the light-speed barrier like on Star Trek?" and "Is there life on other planets?" to "What is empty space made of?" This is an indispensable guide to physics that offers readers an overview of the most popular physics topics written in an accessible, irreverent, and engaging manner while still maintaining a tone of wry skepticism. Even the novice will be able to follow along, as the topics are addressed using plain English and (almost) no equations. Veterans of popular physics will also find their nagging questions addressed, like whether the universe can expand faster than light, and for that matter, what the universe is expanding into anyway. Gives a one-stop tour of all the big questions that capture the public imagination including string theory, quantum mechanics, parallel universes, and the beginning of time Explains serious science in an entertaining, conversational, and easy-to-understand way Includes dozens of delightfully groan-worthy cartoons that explain everything from special relativity to Dark Matter Filled with fascinating information and insights, this book will both deepen and transform your understanding of the universe.
Das vorliegende Tutorium ART ist die ideale Hilfe und Begleitung zur Vorlesung Allgemeine Relativitatstheorie! Dieses Lehrbuch richtet sich an Studierende, die eine Vorlesung zur ART hoeren, und an alle, die genau wissen wollen, wie die Physik das Zwillingsparadoxon, Schwarze Loecher und die Krummung der Raumzeit beschreibt. Die physikalischen Konzepte der ART, wie Raumzeit oder das AEquivalenzprinzip, werden grundlich motiviert und anschaulich eingefuhrt. Die grundlegenden Begriffe der Differenzialgeometrie, die die mathematische Grundlage der ART darstellen, werden sauber erklart, und mit vielen Beispielen wird dafur gesorgt, dass man mit ihnen sicher und routiniert umgehen kann. Mit diesen Werkzeugen werden dann spannende physikalische Phanomene behandelt: Was passiert, wenn man in ein schwarzes Loch fallt? Was genau passiert mit mir, wenn eine Gravitationswelle durch mich hindurchgeht? Und woher wissen wir, dass es einen Urknall gegeben haben muss? All diese Fragen beantwortet dieses Buch. Das Buch kann als begleitende Lernhilfe parallel zu einer Vorlesung benutzt werden, funktioniert aber auch als Lehrbuch, aus dem man selbststandig die Grundlagen der ART lernen kann. Dabei werden die Lerninhalte nicht nur anschaulich und reich bebildert dargestellt, der Stoff wird auch mit vielen UEbungsaufgaben inklusive ausfuhrlicher Loesungen verfestigt. Der Inhalt Newtonsche Mechanik - Spezielle Relativitatstheorie - Mathematische Grundlagen der SRT - Das AEquivalenzprinzip - Tensorkalkul auf Mannigfaltigkeiten - Geometrie: Metriken und kovariante Ableitungen - Geometrie: Krummung - Die Einsteingleichungen - Symmetrien und Erhaltungssatze - Die Schwarzschildmetrik - Kosmologie - Gravitationswellen
A noted astrophysicist presents a lively and accessible introduction to radical ideas and discoveries that are transforming our knowledge of the universe "A strikingly lucid account of the expansion, not just of the universe, but of the way we have tried to understand it, from the Babylonians to black holes and dark matter."-Richard Holmes, "By the Book,"New York Times Book Review "Part history, part science, all illuminating. If you want to understand the greatest ideas that shaped our current cosmic cartography, read this book."-Adam G. Riess, Nobel Laureate in Physics, 2011 This book provides a tour of the "greatest hits" of cosmological discoveries-the ideas that reshaped our universe over the past century. The cosmos, once understood as a stagnant place, filled with the ordinary, is now a universe that is expanding at an accelerating pace, propelled by dark energy and structured by dark matter. Priyamvada Natarajan, our guide to these ideas, is someone at the forefront of the research-an astrophysicist who literally creates maps of invisible matter in the universe. She not only explains for a wide audience the science behind these essential ideas but also provides an understanding of how radical scientific theories gain acceptance. The formation and growth of black holes, dark matter halos, the accelerating expansion of the universe, the echo of the big bang, the discovery of exoplanets, and the possibility of other universes-these are some of the puzzling cosmological topics of the early twenty-first century. Natarajan discusses why the acceptance of new ideas about the universe and our place in it has never been linear and always contested even within the scientific community. And she affirms that, shifting and incomplete as science always must be, it offers the best path we have toward making sense of our wondrous, mysterious universe.
A Brilliant Journey into the World of Beauty and Modern Cosmology "Thought-provoking . . . engaging."–New Scientist "The Accelerating Universe is not only an informative book about cosmology. It is rich storytelling and, above all, a celebration of the human mind on its quest for beauty in all things."–Alan Lightman, bestselling author of Einstein’s Dreams "Stimulating."–Nature "The reader will enter a ‘garden of delights.’"–Physics World "Far more than a puzzle for specialists, the struggle to reinterpret the cosmos raises fundamental questions about the human craving for order: Does this craving reflect deep cosmic harmonies that helped create our species? Or does it simply defy an irreducible chaos that we would rather not confront? Livio probes these questions with a daring sufficient to satisfy the hungriest curiosity."–Booklist In this entertaining and lively exploration of the universe, Hubble Space Telescope scientist Mario Livio introduces us to the "old cosmology," which culminated in the view of a perfectly balanced universe, and then presents all of the fascinating ideas being explored by cosmologists in the "new cosmology," which has been inspired by the discovery of acceleration. Providing extraordinarily clear explanations of all the key concepts and theoretical ideas, Livio is a marvelous guide through this most exciting frontier in science today.
For most of human history, we have had a close relationship with the stars. Once they shaped our religious beliefs, power structures, scientific advances and even our biology. But over the last few centuries we have separated ourselves from the universe that surrounds us. And it comes at a cost. The Human Cosmos is a tour of this history: from the Hall of the Bulls in Lascaux to Tahitian sailors navigating by the stars; from medieval monks grappling with the nature of time to Einstein realising that space and time are the same. It shows we need to rediscover the universe we inhabit, its effect on our health, and its potential for inspiration and revelation.
Cosmology: The Origin and Evolution of Cosmic Structures, Second Edition, is a modern introduction to this fascinating and fast developing subject. The book provides a unique bridge between introductory and advanced material, starting with the elementary foundations of basic cosmological theory, to 'state-of-the-art' frontier research. Extensively revised and updated, the Second Edition includes the latest observational and theoretical developments. The book is fully illustrated throughout with completely updated references. Features:
Numerical relativity has emerged as the key tool to model gravitational waves - recently detected for the first time - that are emitted when black holes or neutron stars collide. This book provides a pedagogical, accessible, and concise introduction to the subject. Relying heavily on analogies with Newtonian gravity, scalar fields and electromagnetic fields, it introduces key concepts of numerical relativity in a context familiar to readers without prior expertise in general relativity. Readers can explore these concepts by working through numerous exercises, and can see them 'in action' by experimenting with the accompanying Python sample codes, and so develop familiarity with many techniques commonly employed by publicly available numerical relativity codes. This is an attractive, student-friendly resource for short courses on numerical relativity, as well as providing supplementary reading for courses on general relativity and computational physics.
Over the last forty years, scientists have uncovered evidence that if the Universe had been forged with even slightly different properties, life as we know it - and life as we can imagine it - would be impossible. Join us on a journey through how we understand the Universe, from its most basic particles and forces, to planets, stars and galaxies, and back through cosmic history to the birth of the cosmos. Conflicting notions about our place in the Universe are defined, defended and critiqued from scientific, philosophical and religious viewpoints. The authors' engaging and witty style addresses what fine-tuning might mean for the future of physics and the search for the ultimate laws of nature. Tackling difficult questions and providing thought-provoking answers, this volumes challenges us to consider our place in the cosmos, regardless of our initial convictions.
"The heavens declare the glory of God" (Ps 19:1). Can we still sing the words of the Psalmist in an age where scientists talk about an expanding cosmos, the Higgs boson, and the multiverse? In Signposts to God particle physicist Peter Bussey introduces readers to the mysteries of modern physics and astronomy. Written in clear, accessible prose, Bussey provides a primer on topics such as the laws of nature, quantum physics, fine-tuning, and current cosmological models. He shows that despite the remarkable achievements of science, the latest research in these fields does not lead to simple physicalism in which physical processes are able to explain everything that exists. Bussey argues that, far from ruling out a divine Creator, modern physics and astronomy present us with compelling signposts to God. The more we know about the cosmos and our presence in it, the more plausible belief in God becomes. We can be intellectually satisfied in both science and the Christian faith. Written by someone who has worked for years in scientific research, Signposts to God is a timely and winsome response to a cultural stalemate.
Given the prevailing consensus among cosmologists that the universe had its beginning approximately 15 billion years ago, and that it will reach its end in the remote yet foreseeable future, we face the momentous intellectual challenge of how to assimilate these scientific claims into our fundamental world view. In this work the distinguished philosopher Milton Munitz provides a lucid account of the chief empirical findings and theories of recent cosmology and a systematic assessment of their broader philosophical implications.
The ideal gift for aspiring astronomers. The sights in our Solar System are dynamic reminders of our planet's position as part of a larger neighbourhood. Study the ever-changing face of the Moon, watch the steady march of the planets against the stars, witness the thrill of a meteor shower, or the memory of a once-in-a-generation comet. In a few short generations, scientists have taken us from wondering about the nature of the Solar System to exploring every corner of it with advanced robotic probes, and inexpensive but powerful telescopes have become ubiquitous, allowing all of us to follow in the footsteps of Galileo as explorers. In this guide, you will learn how the Solar System came to be understood - from ancient theories of its mechanics to the modern age of remote sensing, We'll then look at the significant targets for amateur astronomers - the Moon, Sun and planets - to see how they can be explored by eye and with telescopes. We'll discuss some of the more obscure but fascinating worlds, including asteroids and dwarf planets, and dazzling special events, such as meteor showers, conjunctions, occultations and eclipses.
The marvellous complexity of the Universe emerges from several deep laws and a handful of fundamental constants that fix its shape, scale, and destiny. There is a deep structure to the world which at the same time is simple, elegant, and beautiful. Where did these laws and these constants come from? And why are the laws so fruitful when written in the language of mathematics? Peter Atkins considers the minimum effort needed to equip the Universe with its laws and its constants. He explores the origin of the conservation of energy, of electromagnetism, of classical and quantum mechanics, and of thermodynamics, showing how all these laws spring from deep symmetries. The revolutionary result is a short but immensely rich weaving together of the fundamental ideas of physics. With his characteristic wit, erudition, and economy, Atkins sketches out how the laws of Nature can spring from very little. Or arguably from nothing at all.
What is life? Where do we come from and how did we evolve? What is the universe and how was it formed? What is the nature of the material world? How does it work? How and why do we think? What does it mean to be human? How do we know? There are many different versions of our creation story. This book tells the version according to modern science. It is a unique account, starting at the Big Bang and travelling right up to the emergence of humans as conscious intelligent beings, 13.8 billion years later. Chapter by chapter, it sets out the current state of scientific knowledge: the origins of space and time; energy, mass, and light; galaxies, stars, and our sun; the habitable earth, and complex life itself. Drawing together the physical and biological sciences, Baggott recounts what we currently know of our history, highlighting the questions science has yet to answer.
David Christian, creator of Big History ('My favourite course of all time' Bill Gates), brings us the epic story of the universe and our place in it, from 13.8 billion years ago to the remote future 'Nails home the point: Life is a miracle ... A compelling history of everything' Washington Post 'Spectacular' Carlo Rovelli How did we get from the Big Bang to today's staggering complexity, in which seven billion humans are connected into networks powerful enough to transform the planet? And why, in comparison, are our closest primate relatives reduced to near-extinction? Big History creator David Christian gives the answers in a mind-expanding cosmological detective story told on the grandest possible scale. He traces how, during eight key thresholds, the right conditions have allowed new forms of complexity to arise, from stars to galaxies, Earth to homo sapiens, agriculture to fossil fuels. This last mega-innovation gave us an energy bonanza that brought huge benefits to mankind, yet also threatens to shake apart everything we have created. 'Rather like the Big Bang, the book is awe-inspiring ... Superb' The Times 'With fascinating ideas on every page and the page-turning energy of a good thriller, this is a landmark work' Sir Ken Robinson, author of The Element
A breathtaking account of how the surrounding cosmos impacts life on Earth Did you know that as you read these words showers of high-speed particles from exploding stars are raining down on you? As you gaze into the starry sky, you might feel isolated from the Universe around you-but you're not. This book reveals the startling ways life on Earth is touched by our cosmic environment, and demonstrates why without such contact, life itself wouldn't be possible. Heaven's Touch embarks on an unforgettable journey across the cosmos, beginning in near space with a look at the gentle ebb and flow of lunar and solar tides. Acclaimed astronomer James Kaler describes their subtle effects on our world and also explores the Sun's more potent influences, such as solar storms that cause auroras, give comets their tails, and knock out power grids on Earth. He ventures across the Solar System to consider how the planets can act to produce climate change, even global disaster. Kaler shows how Jupiter's gravity can throw asteroids toward potentially devastating collision with Earth, and how even our whole Galaxy might hurl comet storms at us. He then takes us into deepest space to describe the cosmic rays launched at us from exploding stars, and considers not just how these exploders might harm us, but how they also join together in the creation of stars and how they serve to populate the Universe with the very building blocks of life. Informative and entertaining, Heaven's Touch reveals how intimately connected we really are with the dynamic Universe in which we live.
Readers worldwide have come to know the work of Stephen Hawking through his phenomenal million-copy hardcover best-seller A Brief History of Time. Bantam is proud to present the paperback edition of Dr. Hawking's first new book since that event, a collection of fascinating and illuminating essays, and a remarkable interview broadcast by the BBC on Christmas Day, 1992. These fourteen pieces reveal Hawking variously as the scientist, the man, the concerned world citizen, and-always-the rigorous and imaginative thinker. Hawking's wit, directness of style, and absence of pomp characterize all of them, whether he is remembering his first experience at nursery school; calling for adequate education in science that will enable the public to play its part in making informed decisions on matters such as nuclear disarmament; exploring the origins of the future of the universe; or reflecting on the history of A Brief History of Time. Black Holes and Baby Universes is an important work from one of the greatest minds of the twentieth century.
Opinions on the large-scale structure of the early universe range widely from primeval chaos to a well-ordered mass distribution. P.J.E. Peebles argues that the evolution proceeded from a nearly uniform initial state to a progressively more irregular and clumpy universe. The discussion centers on the largest known structures, the clusters of galaxies, the empirical evidence of the nature of the clustering, and the theories of how the clustering evolves in an expanding universe. In Chapter One the author provides an historical introduction to the subject. Chapter Two contains a survey of methods used to deal with the Newtonian approximation to the theory of the evolution of the mass distribution. Recent progress in the use of statistical measures of the clustering is described in Chapter Three. Chapters Four and Five return to techniques for dealing with cosmic evolution, in the statistical measures of clustering and under general relativity theory. Lastly, in Chapter Six Professor Peebles assesses the progress in attempts to link theory and observation to arrive at a well established physical picture of the nature and evolution of the universe.
This monograph describes the different formulations of Einstein's General Theory of Relativity. Unlike traditional treatments, Cartan's geometry of fibre bundles and differential forms is placed at the forefront, and a detailed review of the relevant differential geometry is presented. Particular emphasis is given to general relativity in 4D space-time, in which the concepts of chirality and self-duality begin to play a key role. Associated chiral formulations are catalogued, and shown to lead to many practical simplifications. The book develops the chiral gravitational perturbation theory, in which the spinor formalism plays a central role. The book also presents in detail the twistor description of gravity, as well as its generalisation based on geometry of 3-forms in seven dimensions. Giving valuable insight into the very nature of gravity, this book joins our highly prestigious Cambridge Monographs in Mathematical Physics series. It will interest graduate students and researchers in the fields of theoretical physics and differential geometry. |
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