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Gravity


Ripples in Spacetime: Einstein, Gravitational Waves, and the Future of Astronomy

Ripples in Spacetime: Einstein, Gravitational Waves, and the Future of Astronomy Lowest new price: $19.51
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Author: Govert Schilling
Brand: Belknap Press An Imprint of Harvard University Press

"The detection of gravitational waves - ripples in spacetime - by the Ligo-Virgo observatories has already been called the scientific coup of this century and lead to the scientists responsible being awarded the 2017 Nobel Prize for Physics. Govert Schilling recounts the struggles that threatened to derail the quest and describes the detector's astounding precision, weaving far-reaching discoveries about the universe into a gripping story of ambition and perseverance."

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  • Belknap Press An Imprint of Harvard University Press

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Cosmology for the Curious

Cosmology for the Curious Lowest new price: $27.17
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Author: Delia Perlov

This book is a gentle introduction for all those wishing to learn about modern views of the cosmos. Our universe originated in a great explosion – the big bang. For nearly a century cosmologists have studied the aftermath of this explosion: how the universe expanded and cooled down, and how galaxies were gradually assembled by gravity. The nature of the bang itself has come into focus only relatively recently. It is the subject of the theory of cosmic inflation, which was developed in the last few decades and has led to a radically new global view of the universe.

Students and other interested readers will find here a non-technical but conceptually rigorous account of modern cosmological ideas - describing what we know, and how we know it. One of the book's central themes is the scientific quest to find answers to the ultimate cosmic questions: Is the universe finite or infinite? Has it existed forever? If not, when and how did it come into being? Will it ever end?

The book is based on the undergraduate course taught by Alex Vilenkin at Tufts University. It assumes no prior knowledge of physics or mathematics beyond elementary high school math. The necessary physics background is introduced as it is required. Each chapter includes a list of questions and exercises of varying degree of difficulty.   

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The Principia : Mathematical Principles of Natural Philosophy

The Principia : Mathematical Principles of Natural Philosophy Lowest new price: $16.31
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Author: Isaac Newton

Newton's Principia by Sir Isaac Newton is presented here in a high quality paperback edition. This publication was produced from a professional scan of an original edition of the book, which can include imperfections from the original book or through the scanning process, and has been created from an edition which we consider to be of the best possible quality available. This popular classic work by Sir Isaac Newton is in the English language. Newton's Principia is highly recommended for those who enjoy the works of Sir Isaac Newton, and for those discovering the works of Sir Isaac Newton for the first time.

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Quantum Field Theory and Gravity: Conceptual and Mathematical Advances in the Search for a Unified Framework

Quantum Field Theory and Gravity: Conceptual and Mathematical Advances in the Search for a Unified Framework Lowest new price: $99.00
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One of the most challenging problems of contemporary theoretical physics is the mathematically rigorous construction of a theory which describes gravitation and the other fundamental physical interactions within a common framework. The physical ideas which grew from attempts to develop such a theory require highly advanced mathematical methods and radically new physical concepts.

 

This book presents different approaches to a rigorous unified description of quantum fields and gravity. It contains a carefully selected cross-section of lively discussions which took place in autumn 2010 at the fifth conference "Quantum field theory and gravity - Conceptual and mathematical advances in the search for a unified framework" in Regensburg, Germany. In the tradition of the other proceedings covering this series of conferences, a special feature of this book is the exposition of a wide variety of approaches, with the intention to facilitate a comparison.

 

The book is mainly addressed to mathematicians and physicists who are interested in fundamental questions of mathematical physics. It allows the reader to obtain a broad and up-to-date overview of a fascinating active research area.


LQG for the Bewildered: The Self-Dual Approach Revisited

LQG for the Bewildered: The Self-Dual Approach Revisited Lowest new price: $69.22
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Author: Deepak Vaid

This primer offers a concise introduction to Loop Quantum Gravity (LQG)
- a theoretical framework for uniting Quantum Mechanics (QM) with General Relativity (GR). The emphasis is on the physical aspects of the framework and its historical development in terms of self-dual variables, still most suited for a first, pedagogical encounter with LQG.

The text starts by reviewing GR and the very basics of Quantum Field Theory (QFT), and then explains in a concise and clear manner the steps leading from the Einstein-Hilbert action for gravity to the construction of the quantum states of geometry, known as spin-networks, and which provide the basis for the kinematical Hilbert space of quantum general relativity. Along the way the various associated concepts of tetrads, spin-connection and holonomies are introduced.

Having thus provided a minimal introduction to the LQG framework, some applications to the problems of black hole entropy and of quantum cosmology are briefly surveyed. Last but not least, a list of the most common criticisms of LQG is presented, which are then tackled one by one in order to convince the reader of the physical viability of the theory. A set of appendices provides accessible introductions to several key notions such as the Peter-Weyl theorem, duality of differential forms and Regge calculus, among others.

The presentation is aimed at graduate students and researchers who have some familiarity with the tools of QM and GR, but are intimidated by the technicalities required to browse through the existing LQG literature. This primer aims at making the formalism appear a little less bewildering to the uninitiated and helps lower the barrier for entry into the field.

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Quantum Relativity: A Synthesis of the Ideas of Einstein and Heisenberg (Theoretical and Mathematical Physics)

Quantum Relativity: A Synthesis of the Ideas of Einstein and Heisenberg (Theoretical and Mathematical Physics) Lowest new price: $106.55
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Author: David R. Finkelstein
Brand: Brand: Springer

Over the past years the author has developed a quantum language going beyond the concepts used by Bohr and Heisenberg. The simple formal algebraic language is designed to be consistent with quantum theory. It differs from natural languages in its epistemology, modal structure, logical connections, and copulatives. Starting from ideas of John von Neumann and in part also as a response to his fundamental work, the author bases his approach on what one really observes when studying quantum processes. This way the new language can be seen as a clue to a deeper understanding of the concepts of quantum physics, at the same time avoiding those paradoxes which arise when using natural languages. The work is organized didactically: The reader learns in fairly concrete form about the language and its structure as well as about its use for physics.

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  • Used Book in Good Condition


The Little Book of Black Holes (Science Essentials)

The Little Book of Black Holes (Science Essentials) Lowest new price: $5.00
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Author: Steven S. Gubser

Dive into a mind-bending exploration of the physics of black holes

Black holes, predicted by Albert Einstein’s general theory of relativity more than a century ago, have long intrigued scientists and the public with their bizarre and fantastical properties. Although Einstein understood that black holes were mathematical solutions to his equations, he never accepted their physical reality―a viewpoint many shared. This all changed in the 1960s and 1970s, when a deeper conceptual understanding of black holes developed just as new observations revealed the existence of quasars and X-ray binary star systems, whose mysterious properties could be explained by the presence of black holes. Black holes have since been the subject of intense research―and the physics governing how they behave and affect their surroundings is stranger and more mind-bending than any fiction.

After introducing the basics of the special and general theories of relativity, this book describes black holes both as astrophysical objects and theoretical “laboratories” in which physicists can test their understanding of gravitational, quantum, and thermal physics. From Schwarzschild black holes to rotating and colliding black holes, and from gravitational radiation to Hawking radiation and information loss, Steven Gubser and Frans Pretorius use creative thought experiments and analogies to explain their subject accessibly. They also describe the decades-long quest to observe the universe in gravitational waves, which recently resulted in the LIGO observatories’ detection of the distinctive gravitational wave “chirp” of two colliding black holes―the first direct observation of black holes’ existence.

The Little Book of Black Holes takes readers deep into the mysterious heart of the subject, offering rare clarity of insight into the physics that makes black holes simple yet destructive manifestations of geometric destiny.

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How to Teach Relativity to Your Dog

How to Teach Relativity to Your Dog Lowest new price: $10.65
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Author: Chad Orzel
Brand: Basic Books AZ

They say you can't teach an old dog new tricks. But what about relativity?

Physics professor Chad Orzel and his inquisitive canine companion, Emmy, tackle the concepts of general relativity in this irresistible introduction to Einstein's physics. Through armchair-and sometimes passenger-seat-conversations with Emmy about the relative speeds of dog and cat motion or the logistics of squirrel-chasing, Orzel translates complex Einsteinian ideas-the slowing of time for a moving observer, the shrinking of moving objects, the effects of gravity on light and time, black holes, the Big Bang, and of course, E=mc2-into examples simple enough for a dog to understand.
A lively romp through one of the great theories of modern physics, How to Teach Relativity to Your Dog will teach you everything you ever wanted to know about space, time, and anything else you might have slept through in high school physics class.

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  • Basic Books AZ

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Gravity Is a Mystery (Let's-Read-and-Find-Out Science 2)

Gravity Is a Mystery (Let's-Read-and-Find-Out Science 2) Lowest new price: $4.02
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Author: Dr. Franklyn M. Branley
Brand: Collins

What goes up must come down.

Everybody knows that. But what is it that pulls everything from rocks to rockets toward the center of the earth? It's gravity. Nobody can say exactly what it is, but gravity is there, pulling on everything, all the time. With the help of an adventurous scientist and his fun-loving dog, you can read and find out about this mysterious force.

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  • Collins Publishers

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GRAVITY CONTROL with Present Technology

GRAVITY CONTROL with Present Technology Lowest new price: $14.50
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Author: Dr. Frederick Alzofon

The Holy Grail of physics, gravity control, from theory to applied technology, will be found inside this volume.

The inventor was Dr. Frederick Alzofon (1919-2012), a physicist with a world-class reputation in optics and heat conduction who studied particle physics with J. Robert Oppenheimer and David Bohm, relativity and the scientific method with Victor Lenzen, and applied mathematics with Griffith C. Evans at Cal Berkeley in the 1940s and 1950s.

Alzofon's theory has the virtue of being visualizable and simple enough to communicate with some old-fashioned hand-waving and sketches on a paper napkin. You will find the "paper napkin" lecture here, as well as the advanced physics you would expect. You will also find experimental proof.

The first half of the book considers the implications of the technology for humanity: the conquest of space, a total revamp of terrestrial transportation, and a second Industrial Revolution. It will also reduce the causes of global warming, while drawing the fossil-fuel industry as early adopters. Entrepreneurs and engineers should find this part of the book most appealing.

The second half of the book dives into the nuts and bolts of the theory and technology. Nothing is withheld. Flash: Nothing is secret either -- the technology has been around in full public view since 1981. Why mainstream science ignored it is one of the themes of the book.

In contrast to other books on the topic of "antigravity," this one delivers the goods in terms of known physical science.

If you're not a scientist or an engineer, you will not feel left out. The theme of the book is accessible to all, and it's a popular one: hope for humanity. But here, the hope is based on a world-transforming technology. The time is ripe for a paradigm shift, and this book points the way.

This volume is an update of an earlier book by the same author, How to Build a Flying Saucer (And Save the Planet), occasioned by the publication of The Top-Ten UFO Riddles. The current volume focuses on the science of gravity control, with new chapters on the scientific method and a program to research and develop the technology.

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