Beyond Einstein Gravity
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Beyond Einstein Gravity
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Author : Salvatore Capozziello
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-10-27
Beyond Einstein Gravity written by Salvatore Capozziello and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-27 with Science categories.
Beyond Einstein’s Gravity is a graduate level introduction to extended theories of gravity and cosmology, including variational principles, the weak-field limit, gravitational waves, mathematical tools, exact solutions, as well as cosmological and astrophysical applications. The book provides a critical overview of the research in this area and unifies the existing literature using a consistent notation. Although the results apply in principle to all alternative gravities, a special emphasis is on scalar-tensor and f(R) theories. They were studied by theoretical physicists from early on, and in the 1980s they appeared in attempts to renormalize General Relativity and in models of the early universe. Recently, these theories have seen a new lease of life, in both their metric and metric-affine versions, as models of the present acceleration of the universe without introducing the mysterious and exotic dark energy. The dark matter problem can also be addressed in extended gravity. These applications are contributing to a deeper understanding of the gravitational interaction from both the theoretical and the experimental point of view. An extensive bibliography guides the reader into more detailed literature on particular topics.
Beyond Einstein Gravity
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Author : Jorge Ovalle
language : en
Publisher: Springer Nature
Release Date : 2020-01-16
Beyond Einstein Gravity written by Jorge Ovalle and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-16 with Science categories.
This book serves two main purposes: firstly, it shows, in a simple way, how the possible existence of an extra-spatial dimension would affect the predictions of four-dimensional General Relativity, a model known as the Brane world; secondly, it explains, step-by-step, a new technique called Minimal Geometric Deformation, which was introduced for the purpose of solving the correspondingly modified Einstein field equations. This method gave rise to the Gravitational Decoupling in General Relativity, which is widely used to solve the Einstein field equations in various contexts.
Reinventing Gravity
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Author : John W. Moffat
language : en
Publisher: Smithsonian
Release Date : 2008-09-30
Reinventing Gravity written by John W. Moffat and has been published by Smithsonian this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-30 with Science categories.
Einstein's gravity theory—his general theory of relativity—has served as the basis for a series of astonishing cosmological discoveries. But what if, nonetheless, Einstein got it wrong? Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have. Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The capstone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work challenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence. This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.
Beyond Einstein
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Author : David E. Rowe
language : en
Publisher: Birkhäuser
Release Date : 2018-06-18
Beyond Einstein written by David E. Rowe and has been published by Birkhäuser this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-18 with Mathematics categories.
Beyond Einstein: Perspectives on Geometry, Gravitation, and Cosmology explores the rich interplay between mathematical and physical ideas by studying the interactions of major actors and the roles of important research communities over the course of the last century.
Beyond Einstein
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Author : Lenard Metzger
language : en
Publisher: Lulu.com
Release Date : 2008-03-01
Beyond Einstein written by Lenard Metzger and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-03-01 with Science categories.
The author points out what he considers to be some erroneous assumptions in Einstein's theories of relativity. This allowed going beyond these theories in the development of a non-relativistic, unified theory of gravitation and electromagnetism. What causes gravity and establishes the speed of light is described. The possibility of faster than light travel is discussed. Included are new ideas about the structure of atoms, the emission of photons and the interaction of gravity with atoms and photons. Also presented is the part played by gravity in the formation of black holes, the Big Bang, the expanding Universe and dark matter. A structure of the Cosmos is described that could lead to future Big Bangs.
Cosmology Beyond Einstein
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Author : Adam Ross Solomon
language : en
Publisher: Springer
Release Date : 2016-11-02
Cosmology Beyond Einstein written by Adam Ross Solomon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-02 with Science categories.
This work investigates the theoretical and cosmological implications of modifying Einstein's theory of general relativity. It explores two classes of modifications to gravity: those in which the graviton is given a small mass, and those in which Lorentz invariance is spontaneously broken. It elucidates the nature of cosmological perturbations in theories of massive bimetric gravity, including a potentially deadly instability. Theories of gravity beyond general relativity could explain why the expansion of the Universe is accelerating, obviating the need for a dark energy, and can also affect the evolution of the early Universe. Next, it investigates the nature of spacetime in massive gravity theories that contain two different spacetime metrics. Lastly, the strongest constraints to date are placed on the size of Lorentz-violating effects in the gravity sector during inflation.
Beyond Einstein S Unified Field
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Author : John Brandenburg, Ph.D.
language : en
Publisher: SCB Distributors
Release Date : 2011-08-07
Beyond Einstein S Unified Field written by John Brandenburg, Ph.D. and has been published by SCB Distributors this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-07 with Science categories.
Veteran plasma physicist John Brandenburg reveals the new theory that finally accomplishes what Einstein failed to do: the GEM Unification Theory proves the mathematical and physical interrelation of the forces of gravity and electromagnetism! This theory vindicates Einstein's dedication to unifying the fields in the final labor of his life. His quest became legendary, then mythic, until the whole idea was dismissed as myth by other physicists; the gravity-electromagnetism problem pursued by Einstein until his death became regarded like the ancient Greek problem of squaring the circle-an epic puzzle with no solution. But the other physicists were wrong, as Brandenburg shows. It turns out the fields can be unified-the circle can be squared-and this has vast implications for the future of humankind. Brandenburg starts out by tracing the evolution of thought on the two long-term forces of nature, gravity and electromagnetism, from ancient times to the modern day. He shows the intricate interweaving of Einstein's work with that of other physicists, including Sarkharov and his "zero point” theory of gravity and the hidden fifth dimension of Kaluza and Klein. He also traces the surprising, hidden influence of Nikola Tesla on Einstein's life. This book shows how, despite Einstein's errors in the details, the successful GEM Unification Theory is built on his basic hypothesis that gravity and electromagnetic forces could be unified, and that both controlled gravity and a new view of the cosmos follow: hydrogen, the basic building block of the universe, can be unified with the vacuum itself! The universe is self-renewing, a sort of "evergreen cosmos.” Brandenburg describes control of space-time geometry through electromagnetism, and states that faster-than-light travel will be possible in the future. Anti-gravity through electromagnetism is possible, which upholds the basic "flying saucer” design utilizing "The Tesla Vortex.” A must read for any person interested in UFOs and leading-edge physics. See the physics used at Area 51 explained!
Beyond Einstein S Universe
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Author : Joseph Zammit
language : en
Publisher: Primedia E-launch LLC
Release Date : 2013
Beyond Einstein S Universe written by Joseph Zammit and has been published by Primedia E-launch LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Cosmology categories.
Beyond Einstein
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Author : Michio Kaku
language : en
Publisher: OUP Oxford
Release Date : 1997
Beyond Einstein written by Michio Kaku and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.
What is superstring theory and why is it important? Can superstrings offer the fulfilment of Einstein's lifelong dream of a Theory of Everything? Co-authored by one of the leading pioneers in superstrings, this book approaches these scientific questions, looking at the scientific research.
Classical Physics Beyond Einstein S
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Author : Alexandre Kassiantchouk
language : en
Publisher: Alexandre Kassiantchouk
Release Date :
Classical Physics Beyond Einstein S written by Alexandre Kassiantchouk and has been published by Alexandre Kassiantchouk this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
The purpose of this book is different from answering fascinating questions, which were covered in "Time Matters, 10th edition" my previous book, like these: What is Time? — Time is Quantum fluctuations, just like Temperature is Brownian motion. What is Gravity? — Gravity is Time pressure: pressure from faster Quantum fluctuations in the direction of slower time. How Matter and Galaxies appeared? — From Time burning: when blobs of slow time (when there was no Matter yet) were colliding at a speed exceeding local speed limit. Does Bob Lazar’s story physics check out? — It does! What are UFOs? How can a UFO and its crew survive 1000×g acceleration? … The current book provides a clear foundation for physicists to discard Dark Science, which they cultivated for a century. All physics in this book is derived from classical mechanics, even teenagers can understand. The most advanced part used in this book is Newton-Laplace formula for a sound wave in any medium. High school students can safely take this amazingly simple and universal formula on faith, and college students can learn how it is derived. TABLE OF CONTENTS 1. METERING TIME 2. OPTICAL EFFECTS OF TIME VARIABILITY 2.1. Color Change (Redshift, Blueshift) 2.2. Refraction 2.3. Reflection 2.4. Multiple Images ★★ 2.5. Visibility Angle 2.6. Concave Lensing ★ 3. TIME POTENTIAL 3.1. Potential = 0.5×c²/D² 3.2. Gravity g = – (0.5c²/D²)' ≈ c²×D' ~ ∇D 3.3. Gravitational Time Dilation D = exp[G×M/(R×c²)] 3.4. Escape velocity = c × √ [ 1–exp(–2G×M/(R×c²)) ] < c 3.5. Action = – D² × Reaction 3.6. Relativistic Time Dilation D = 1 / √ (1–v²/c²) 4. REVISED MASS AND ENERGY FORMULAS 4.1. Mass m = m₀×D² 4.2. E = m×c²/2 4.3. E = h×f/2 and Millikan's Test ★★ 5. CROSSING BORDER BETWEEN TIMEZONES 5.1. Mechanics by Snell’s Law: Escape Velocity 5.2. Strong Force and Half–Life ★ – extended section, ★★ – new section, compared to "Time Matters" coverage. P.S. "Time Matters" eBook is free at https://play.google.com/store/books/details?id=8aQNEQAAQBAJ .