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This book unfolds the subject of Relativity for undergraduate students of physics. It fills a gap between introductory descriptions and texts for researchers. Assuming almost no prior knowledge, it allows the student to handle all the Relativity needed for a university course, with explanations as simple, thorough, and engaging as possible.
Following on from a previous volume on Special Relativity, Andrew Steane's second volume on General Relativity and Cosmology is aimed at advanced undergraduate or graduate students undertaking a physics course, and encourages them to expand their knowledge of Special Relativity. Beginning with a survey of the main ideas, the textbook goes on to give the methodological foundations to enable a working understanding of astronomy and gravitational waves (linearized approximation, differential geometry, covariant differentiation, physics in curved spacetime). It covers the generic properties of horizons and black holes, including Hawking radiation, introduces the key concepts in cosmology and gives a grounding in classical field theory, including spinors and the Dirac equation, and a Lagrangian approach to General Relativity. The textbook is designed for self-study and is aimed throughout at clarity, physical insight, and simplicity, presenting explanations and derivations in full, and providing many explicit examples.
One of the subject's clearest, most entertaining introductions offers lucid explanations of special and general theories of relativity, gravity, and spacetime, models of the universe, and more. 100 illustrations.
This book reveals the hidden principles of relativity and makes it easy for almost anyone to understand it. No longer is relativity a mysterious counter intuitive theory understood only by physicists. When the simple principles that underlie it are understood our whole view of the universe undergoes a revolutionary paradigm shift and relativity becomes completely natural and obvious. The first principle is that everything in the universe continually travels through combined space and time at the speed of light. Thus if anything acquires velocity in space its velocity in time automatically slows. This principle underlies the time dilation of special relativity and provides a firm physical basis for the arrow of time and a present moment of existence, which revolutionizes our understanding of time. The second principle is that all forms of mass and energy are different forms of spatial velocity. Thus gravitational fields become fields of intrinsic velocity density, which by the first principle slow the velocity in time of anything in the field. This principle reveals that gravitational time dilation and linear velocity time dilation are two aspects of the same thing and it also reveals the hidden reason for the conservation of mass and energy as simply the conversion of one form of spatial velocity to another. These principles lead to a completely new understanding of the fabric of the universe as a universal field of spacetime velocity which can either be velocity in space or velocity in time at any point so long as the total velocity is equal to the speed of light c. Within this field the presence of spatial velocity is always some form of mass or energy, and the presence of mass or energy is always some form of spatial velocity. This lets us replace the impossible to visualize curved spacetime of relativity with a much easier to understand flat space model in which gravitational fields become fields of intrinsic spatial velocity. This model of relativistic spacetime is completely equivalent to relativity's curved space but has the enormous advantage of representing spacetime as we actually see it as flat rather than curved. In addition this book shows how a computational model of the universe actually computes relativity in terms of the basic laws of nature. In a computational universe everything reduces to data and the laws of nature find a natural place as part of the data of the universe rather than somehow standing outside a physical universe they are not a part of it while mysteriously controlling it as they did in the traditional view. This leads to all sorts of amazing new insights that can't be found anywhere else such as convincing explanations for how the presence of mass actually curves spacetime, the true fundamental nature of time, solutions for the problems of Newton's bucket and what world lines are actually relative to, and a simple new and convincing explanation of dark matter, all questions current physics has been unable to answer. This is a serious scientific theory based solidly in modern physical and computational science that proposes a revolutionary new interpretation of the universe completely consistent with modern physics but from an entirely new perspective. Anyone interested in the fundamentals of relativity, time, and reality in general will find this book a fascinating and mind opening read.
Understanding Einstein’s Creative Genius Not since Isaac Newton had anyone conceived the universe in such a revolutionary, startling new way. Given the fervent renewed appreciation for the contributions Albert Einstein has bestowed on humanity, physicist and popular science writer Barry Parker dedicates a book to explaining in the clearest possible terms to the broadest possible audience the meaning and beauty of Einstein’s theories. While tracing the story of Einstein’s life, Parker seizes on the crucial groundbreaking theories that Einstein envisioned. Through Parker's eloquence, eye for detail, and clever use of Einsteinian cartoons and vivid illustrations, he enables the reader to see and appreciate for perhaps the first time the full meaning and scope of Einstein’s Special Theory of Relativity and General Theory of Relativity. Parker then guides the reader to the next step in Einstein's revelations: the possibility of time travel. Parker’s incomparable gift for language captures Einstein’s uniqueness, singular brilliance, and stunning theories. The clarity of the writing coupled with the many illustrations will drive home the point why so many consider Einstein to be the greatest scientist who ever lived and Time magazine named Albert Einstein “Person of the Century.” BARRY PARKER (Pocatello, ID) is an award-winning science writer and the author of 27 highly acclaimed popular science books. He is professor emeritus of physics at Idaho State University.
Nonspecialists with no prior knowledge of physics and only reasonable proficiency with algebra can now understand Einstein's special theory of relativity. Effectively diagrammed and with an emphasis on logical structure, Leo Sartori's rigorous but simple presentation will guide interested readers through concepts of relative time and relative space. Sartori covers general relativity and cosmology, but focuses on Einstein's theory. He tracks its history and implications. He explores illuminating paradoxes, including the famous twin paradox, the "pole-in-the-barn" paradox, and the Loedel diagram, which is an accessible, graphic approach to relativity. Students of the history and philosophy of science will welcome this concise introduction to the central concept of modern physics.
Understand the rules that make the universe run. Understanding the laws of physics is essential for all scientific studies, but many students are intimidated by their complexities. This completely revised and updated book makes it easy to understand the most important principles. From the physics of the everyday world to the theory of relativity, PHYSICS MADE SIMPLE covers it all. Each chapter is introduced by anecdotes that directly apply the concepts to contemporary life and ends with practice problems—with complete solutions—to reinforce the concepts. Humorous illustrations and stories complete the text, making it not only easy but fun to learn this important science. Topics covered include: *force *motion *energy *waves *electricity and magnetism *the atom *quantum physics *relativity *spectroscopy *particle physics Look for these Made Simple titles Accounting Made Simple Arithmetic Made Simple Astronomy Made Simple Biology Made Simple Bookkeeping Made Simple Business Letters Made Simple Chemistry Made Simple English Made Simple Earth Science Made Simple French Made Simple German Made Simple Ingles Hecho Facil Investing Made Simple Italian Made Simple Keyboarding Made Simple Latin Made Simple Learning English Made Simple Mathematics Made Simple The Perfect Business Plan Made Simple Philosophy Made Simple Psychology Made Simple Sign Language Made Simple Spelling Made Simple Statistics Made Simple Your Small Business Made Simple www.broadwaybooks.com
The present book is intended, as far as possible, to give an exact insight into the theory of Relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics. The author has spared himself no pains in his endeavor to present the main ideas in the simplest and most intelligible form, and on the whole, in the sequence and connection in which they actually originated.
This book provides a lively and visual introduction to Einstein's theory of relativity. It begins by introducing spacetime, in the familiar context of low velocities. It then shows how Einstein's theory forces us to understand time in a new way. Paradoxes and puzzles are introduced and resolved, and the book culminates in a thorough unfolding of the relation between mass and energy.
Best-selling, accessible physics-first introduction to GR uses minimal new mathematics and begins with the essential physical applications.