Cosmic Theories
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Cosmic Theories
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Author : Steff Jaywan
language : en
Publisher: Dedona Publishing
Release Date :
Cosmic Theories written by Steff Jaywan and has been published by Dedona Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
This book consists of 4 titles, which are the following: Cosmic Inflation - Cosmic inflation is more than just a theoretical construct; it is a crucial piece of the puzzle in our understanding of the universe's origins and its subsequent evolution. At its core, the concept of cosmic inflation addresses some of the most profound questions in cosmology, such as why the universe appears so uniform on large scales, despite the randomness we might expect from the chaotic conditions of the Big Bang. Without inflation, these puzzles remain unresolved, leaving gaps in our understanding of how the universe came to be the way it is. Cosmic Rays - Cosmic rays are an intriguing aspect of astrophysics, originating from various sources in the universe, such as supernovae, pulsars, and even black holes. They consist of charged particles accelerated to incredible energies, often far beyond what our most powerful particle accelerators on Earth can achieve. These particles, when they collide with the Earth's atmosphere, create secondary particles in a cascade of interactions, leading to a fascinating array of phenomena. Multiverse Theory - Multiverse theory posits the existence of multiple, possibly infinite, universes that exist parallel to our own, collectively forming what is known as the "multiverse." The origins of this theory are rooted in quantum mechanics and cosmology. String Theory - String theory is a theoretical framework aiming to unify all fundamental forces and particles by positing that they are vibrations of one-dimensional "strings," rather than point-like particles. These strings, in different vibrational modes, correspond to various particle types and properties.
Nonlinear Cosmic Ray Diffusion Theories
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Author : Andreas Shalchi
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-06-04
Nonlinear Cosmic Ray Diffusion Theories written by Andreas Shalchi 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 2009-06-04 with Science categories.
If charged particles move through the interplanetary or interstellar medium, they interact with a large-scale magnetic ?eld such as the magnetic ?eld of the Sun or the Galactic magnetic ?eld. As these background ?elds are usually nearly constant in time and space, they can be approximated by a homogeneous ?eld. If there are no additional ?elds, the particle trajectory is a perfect helix along which the par- cle moves at a constant speed. In reality, however, there are turbulent electric and magnetic?elds dueto the interstellaror solar wind plasma. These ?elds lead to sc- tering of the cosmic rays parallel and perpendicular to the background ?eld. These scattering effects, which usually are of diffusive nature, can be described by s- tial diffusion coef?cients or, alternatively, by mean free paths. The knowledge of these parameters is essential for describing cosmic ray propagation as well as d- fusive shock acceleration. The latter process is responsible for the high cosmic ray energies that have been observed. The layout of this book is as follows. In Chap. 1, the general physical scenario is presented. We discuss fundamental processes such as cosmic ray propagation and acceleration in different systems such as the solar system or the interst- lar space. These processes are a consequence of the interaction between charged cosmic particles and an astrophysical plasma (turbulence). The properties of such plasmas are therefore the subject of Chap. 2.
Cosmology And Controversy
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Author : Helge Kragh
language : en
Publisher: Princeton University Press
Release Date : 1999-03-14
Cosmology And Controversy written by Helge Kragh and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-14 with Science categories.
Between 1920 and 1970, cosmology became a branch of physics. This text examines how the big bang theory drew inspiration from, and eventually triumphed over, rival views, mainly the steady-state theory and its concept of a stationary universe.
Fashion Faith And Fantasy In The New Physics Of The Universe
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Author : Roger Penrose
language : en
Publisher: Princeton University Press
Release Date : 2016-09-13
Fashion Faith And Fantasy In The New Physics Of The Universe written by Roger Penrose and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-13 with Science categories.
Nobel Prize–winning physicist Roger Penrose questions some of the most fashionable ideas in physics today, including string theory What can fashionable ideas, blind faith, or pure fantasy possibly have to do with the scientific quest to understand the universe? Surely, theoretical physicists are immune to mere trends, dogmatic beliefs, or flights of fancy? In fact, acclaimed physicist and bestselling author Roger Penrose argues that researchers working at the extreme frontiers of physics are just as susceptible to these forces as anyone else. In this provocative book, he argues that fashion, faith, and fantasy, while sometimes productive and even essential in physics, may be leading today's researchers astray in three of the field's most important areas—string theory, quantum mechanics, and cosmology. Arguing that string theory has veered away from physical reality by positing six extra hidden dimensions, Penrose cautions that the fashionable nature of a theory can cloud our judgment of its plausibility. In the case of quantum mechanics, its stunning success in explaining the atomic universe has led to an uncritical faith that it must also apply to reasonably massive objects, and Penrose responds by suggesting possible changes in quantum theory. Turning to cosmology, he argues that most of the current fantastical ideas about the origins of the universe cannot be true, but that an even wilder reality may lie behind them. Finally, Penrose describes how fashion, faith, and fantasy have ironically also shaped his own work, from twistor theory, a possible alternative to string theory that is beginning to acquire a fashionable status, to "conformal cyclic cosmology," an idea so fantastic that it could be called "conformal crazy cosmology." The result is an important critique of some of the most significant developments in physics today from one of its most eminent figures.
Cosmology And String Theory
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Author : Horaţiu Năstase
language : en
Publisher: Springer
Release Date : 2019-04-04
Cosmology And String Theory written by Horaţiu Năstase and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-04 with Science categories.
Cosmology describes the evolution of the Universe and is based on a description of its beginning from quantum fluctuations. String theory is the only known consistent theory of quantum gravity that can deal with the highest energy scales near the Planck energy, relevant for cosmology's beginning. As a result, only string theory can give a fully consistent picture of cosmological origins. This book describes the best current avenues for obtaining cosmology from string theory. It is aimed at graduate students, and also researchers, with some familiarity with cosmology and string theory, however no detailed knowledge is required.
Cosmic Constitutional Theory
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Author : J. Harvie Wilkinson
language : en
Publisher: OUP USA
Release Date : 2012-03-12
Cosmic Constitutional Theory written by J. Harvie Wilkinson and has been published by OUP USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-12 with Law categories.
What underlies this development? In this concise and highly engaging work, Federal Appeals Court Judge and noted author (From Brown to Bakke) J. Harvie Wilkinson argues that America's most brilliant legal minds have launched a set of cosmic constitutional theories that, for all their value, are undermining self-governance.
The Worldwide List Of Alternative Theories And Critics
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Author : Jean de Climont
language : en
Publisher: Editions d Assailly
Release Date : 2020-11-01
The Worldwide List Of Alternative Theories And Critics written by Jean de Climont and has been published by Editions d Assailly this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-01 with Science categories.
This Worldwide List of Alternative Theories and Critics (only avalailable in english language) includes scientists involved in scientific fields. The 2023 issue of this directory includes the scientists found in the Internet. The scientists of the directory are only those involved in physics (natural philosophy). The list includes 9700 names of scientists (doctors or diplome engineers for more than 70%). Their position is shortly presented together with their proposed alternative theory when applicable. There are nearly 3500 authors of such theories, all amazingly very different from one another. The main categories of theories are presented in an other book of Jean de Climont THE ALTERNATIVE THEORIES
Cosmology And Controversy
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Author : Helge Kragh
language : en
Publisher: Princeton University Press
Release Date : 2021-03-09
Cosmology And Controversy written by Helge Kragh and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-09 with Science categories.
For over three millennia, most people could understand the universe only in terms of myth, religion, and philosophy. Between 1920 and 1970, cosmology transformed into a branch of physics. With this remarkably rapid change came a theory that would finally lend empirical support to many long-held beliefs about the origins and development of the entire universe: the theory of the big bang. In this book, Helge Kragh presents the development of scientific cosmology for the first time as a historical event, one that embroiled many famous scientists in a controversy over the very notion of an evolving universe with a beginning in time. In rich detail he examines how the big-bang theory drew inspiration from and eventually triumphed over rival views, mainly the steady-state theory and its concept of a stationary universe of infinite age. In the 1920s, Alexander Friedmann and Georges Lemaître showed that Einstein's general relativity equations possessed solutions for a universe expanding in time. Kragh follows the story from here, showing how the big-bang theory evolved, from Edwin Hubble's observation that most galaxies are receding from us, to the discovery of the cosmic microwave background radiation. Sir Fred Hoyle proposed instead the steady-state theory, a model of dynamic equilibrium involving the continuous creation of matter throughout the universe. Although today it is generally accepted that the universe started some ten billion years ago in a big bang, many readers may not fully realize that this standard view owed much of its formation to the steady-state theory. By exploring the similarities and tensions between the theories, Kragh provides the reader with indispensable background for understanding much of today's commentary about our universe.
String Theory From Gauge Interactions To Cosmology
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Author : Laurent Baulieu
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-26
String Theory From Gauge Interactions To Cosmology written by Laurent Baulieu 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 2006-06-26 with Science categories.
String Theory is our current best candidate for the unification of all fundamental forces, including gravity, in a consistent quantum framework. In this collection of lectures delivered at the Cargèse Summer School "String Theory: from Gauge Interactions to Cosmology'', world leading experts provide an up-to-date survey of the latest developments in this topic, including the gauge/gravity correspondence, superstring cosmology and cosmic strings, topological string theory and matrix models, physics beyond the standard model and the landscape of vacua of string theory, conformal field theory and critical phenomena in statistical mechanics. Many more topics are also discussed in shorter contributions by School participants. Written with an emphasis on pedagogy, this volume will be a invaluable resource to students and experts alike.
String Theory And Cosmology Proceedings Of The Nobel Symposium 127
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Author : Ulf Danielsson
language : en
Publisher: World Scientific
Release Date : 2005-08-02
String Theory And Cosmology Proceedings Of The Nobel Symposium 127 written by Ulf Danielsson and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-08-02 with Science categories.
The Nobel Symposium in 2003 on String Theory and Cosmology was a gathering of many of the most active and distinguished scientists in the world, including Stephen Hawking, 2004 Nobel Prize winner David Gross, and Andrei Linde. The experts, comprising both theoreticians and experimentalists, were given the opportunity to discuss the present status of their respective subjects. Throughout the symposium, special attention was given to the connections between the fields: the questions posed ranged from ”Can cosmology be used to test string theory?” to ”Can string theory answer deep questions about cosmology?” The symposium marked a new era in the understanding of the science of the very small and the very large. This book is a unique document that reflects upon the state of fundamental physics at a historically important moment in time.