Action Gravity

Action Gravity

Author: Jeff Lee

Publisher: Archway Publishing

Published: 2021-02-09

Total Pages: 105

ISBN-13: 1665701854

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The Cause of Gravity: The Holy Grail of all Scientific Revelation For over four centuries now, Natural Philosophers and Theoretical Physicists have been desperately searching for the answer to that elusive and intractable question that is still hanging around today: "What is the true cause of Gravity?" The present-day view by Theoretical Physics Academia is that gravity can be described as: "curved, or warped, space, or spacetime." So, how does this space, or spacetime, curve, or warp? Do certain particles of space get closer together in one vicinity of space and further apart in another? Are there compressions and rarefactions in space like there are in air? How can empty space form a path for a moving object to travel through if it is completely empty? The answer is that: Space is NOT empty. According to a brand-new type of physics called: "Reality Physics", we now know that space is not empty but contains an "active" plenum structure that is continually being created by the "active", two-dimensional, outward motion of Time with Space. What this actually means is that the "Now Point" in Time expands outward into space with an "active", two-dimensional, omnidirectional, omnipositional displacement at the Speed of Light, or: "c" = 299, 792, 458 meters per second, and that it also forms an "inertial reference background pressure density" throughout the universe. We find that by placing a body of mass into this active inertial reference background pressure density we can create a vicinity of "less active pressure density" at that location where the mass is located. This would, obviously, cause the greater pressure density surrounding the mass to implode with an "accelerating motion" down towards the surface of the mass body where the pressure density is less. We call this implosively accelerating motion of the inertial reference background: "Gravitational Acceleration", and this is what actually causes small objects to "fall to the ground" at the surface of the large body of mass. Gravity is an "action", not a curvature or warpage of anything, and therefore it must be caused by an "action", as revealed here by: "ACTION GRAVITY" of Reality Physics.


Gravity in Action

Gravity in Action

Author: Joan Newton

Publisher: The Rosen Publishing Group, Inc

Published: 2009-01-01

Total Pages: 28

ISBN-13: 1435858395

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Nothing can capture attention like the thrill and rush of roller coasters. Your students will learn how the force of gravity makes their favorite roaring rollers move.


Effective Action in Quantum Gravity

Effective Action in Quantum Gravity

Author: I.L Buchbinder

Publisher: Routledge

Published: 2017-09-29

Total Pages: 432

ISBN-13: 1351453823

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In part one of Effective Action in Quantum Gravity, the book describes the principles of quantum field theory and the significance of and theory behind effective action. Part two deals with quantum field theory in curved space-time and the effective action. These two parts provide the tools for understanding the rest of the book, which is devoted to selected problems of quantum gravity where the effective action plays a major role. The book assumes only a basic understanding of quantum field theory and general relativity and will be of interest to postgraduate students and researchers in theoretical high-energy physics and gravitational theory.


Extensions of f(R) Gravity

Extensions of f(R) Gravity

Author: Tiberiu Harko

Publisher: Cambridge University Press

Published: 2018-11-29

Total Pages: 475

ISBN-13: 110860028X

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Recent cosmological observations have posed a challenge for traditional theories of gravity: what is the force driving the accelerated expansion of the universe? What if dark energy or dark matter do not exist and what we observe is a modification of the gravitational interaction that dominates the universe at large scales? Various extensions to Einstein's General Theory of Relativity have been proposed, and this book presents a detailed theoretical and phenomenological analysis of several leading, modified theories of gravity. Theories with generalised curvature-matter couplings are first explored, followed by hybrid metric-Palatini gravity. This timely book first discusses key motivations behind the development of these modified gravitational theories, before presenting a detailed overview of their subsequent development, mathematical structure, and cosmological and astrophysical implications. Covering recent developments and with an emphasis on astrophysical and cosmological applications, this is the perfect text for graduate students and researchers.


Gravity and Strings

Gravity and Strings

Author: Tomás Ortín

Publisher: Cambridge University Press

Published: 2015-03-26

Total Pages: 1043

ISBN-13: 0521768136

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Self-contained and comprehensive, this definitive new edition provides a complete overview of the intersection of gravity, supergravity, and superstrings.


Einstein Gravity in a Nutshell

Einstein Gravity in a Nutshell

Author: A. Zee

Publisher: Princeton University Press

Published: 2013-05-05

Total Pages: 888

ISBN-13: 069114558X

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An ideal introduction to Einstein's general theory of relativity This unique textbook provides an accessible introduction to Einstein's general theory of relativity, a subject of breathtaking beauty and supreme importance in physics. With his trademark blend of wit and incisiveness, A. Zee guides readers from the fundamentals of Newtonian mechanics to the most exciting frontiers of research today, including de Sitter and anti-de Sitter spacetimes, Kaluza-Klein theory, and brane worlds. Unlike other books on Einstein gravity, this book emphasizes the action principle and group theory as guides in constructing physical theories. Zee treats various topics in a spiral style that is easy on beginners, and includes anecdotes from the history of physics that will appeal to students and experts alike. He takes a friendly approach to the required mathematics, yet does not shy away from more advanced mathematical topics such as differential forms. The extensive discussion of black holes includes rotating and extremal black holes and Hawking radiation. The ideal textbook for undergraduate and graduate students, Einstein Gravity in a Nutshell also provides an essential resource for professional physicists and is accessible to anyone familiar with classical mechanics and electromagnetism. It features numerous exercises as well as detailed appendices covering a multitude of topics not readily found elsewhere. Provides an accessible introduction to Einstein's general theory of relativity Guides readers from Newtonian mechanics to the frontiers of modern research Emphasizes symmetry and the Einstein-Hilbert action Covers topics not found in standard textbooks on Einstein gravity Includes interesting historical asides Features numerous exercises and detailed appendices Ideal for students, physicists, and scientifically minded lay readers Solutions manual (available only to teachers)


Classical and Quantum Aspects of Gravity in Relation to the Emergent Paradigm

Classical and Quantum Aspects of Gravity in Relation to the Emergent Paradigm

Author: Sumanta Chakraborty

Publisher: Springer

Published: 2017-08-01

Total Pages: 268

ISBN-13: 3319637339

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This thesis explores the connection between gravity and thermodynamics and provides a unification scheme that opens up new directions of exploration. Further elaborating on the Hawking effect and the possibility of singularity avoidance, the author not only discusses the information loss paradox at a broader level but also provides a possible solution to it. As the final frontier, it describes some novel effects arising from the microscopic structure of spacetime. Taken as a whole, the thesis addresses three major research areas in gravitational physics: it starts with classical gravity, proceeds to the black hole information loss paradox, and closes with Planck scale physics. The thesis is written in a lucid and pedagogical style, with an introduction accessible to researchers from other branches of physics and a d iscussion presenting open questions and future directions, which will benefit and hopefully inspire next-generation researchers.


Chern-Simons (super) Gravity

Chern-Simons (super) Gravity

Author: Mokhtar Hassaine

Publisher: World Scientific

Published: 2016

Total Pages: 149

ISBN-13: 9814730947

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"This book grew out of a set of lecture notes on gravitational Chern–Simons (CS) theories developed over the past decade for several schools and different audiences including graduate students and researchers. CS theories are gauge-invariant theories that can include gravity consistently. They are only defined in odd dimensions and represent a very special class of theories in the Lovelock family. Lovelock gravitation theories are the natural extensions of General Relativity for dimensions greater than four that yield second-order field equations for the metric. These theories also admit local supersymmetric extensions where supersymmetry is an off-shell symmetry of the action, as in a standard gauge theory. Apart from the arguments of mathematical elegance and beauty, the gravitational CS actions are exceptionally endowed with physical attributes that suggest the viability of a quantum interpretation. CS theories are gauge-invariant, scale-invariant and background independent; they have no dimensional coupling constants. All constants in the Lagrangian are fixed rational coefficients that cannot be adjusted without destroying gauge invariance. This exceptional status of CS systems makes them classically interesting to study, and quantum mechanically intriguing and promising."--Provided by publisher.


Euclidean Quantum Gravity

Euclidean Quantum Gravity

Author: G. W. Gibbons

Publisher: World Scientific

Published: 1993

Total Pages: 604

ISBN-13: 9789810205164

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The Euclidean approach to Quantum Gravity was initiated almost 15 years ago in an attempt to understand the difficulties raised by the spacetime singularities of classical general relativity which arise in the gravitational collapse of stars to form black holes and the entire universe in the Big Bang. An important motivation was to develop an approach capable of dealing with the nonlinear, non-perturbative aspects of quantum gravity due to topologically non-trivial spacetimes. There are important links with a Riemannian geometry. Since its inception the theory has been applied to a number of important physical problems including the thermodynamic properties of black holes, quantum cosmology and the problem of the cosmological constant. It is currently at the centre of a great deal of interest.This is a collection of survey lectures and reprints of some important lectures on the Euclidean approach to quantum gravity in which one expresses the Feynman path integral as a sum over Riemannian metrics. As well as papers on the basic formalism there are sections on Black Holes, Quantum Cosmology, Wormholes and Gravitational Instantons.