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This book is a compilation of the lectures for a one-semester course on gravitation at the University of Rochester. Starting from a simple description of geometry, the topics are systematically developed to the big bang theory with a simple derivation of the cosmic background temperature. Several informative examples are worked out in detail as well.
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Physicists have devoted much effort to reproducing the conditions of the primordial universe in laboratory conditions in their quest to work out a comprehensive theory of the appearance and evolution of nuclear matter. Whether it be trying to recreate the predicted primordial state of high-energy density matter in which quarks and gluons are effectively deconfined - the so-called Quark Gluon Plasma (QGP) - or exploring the structure and reaction properties of very unstable nuclei in experiments using radioactive beams, they have striven to understand the events which characterized the Big Bang
Nucleosynthesis --- Big bang theory --- Big bang cosmology --- Superdense theory --- Cosmogony --- Cosmology --- Expanding universe --- Universe
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""Primordial Cosmology"" deals with one of the most puzzling and fascinating topics debated in modern physics - the nature of the Big Bang singularity. The authors provide a self-consistent and complete treatment of the very early Universe dynamics, passing through a concise discussion of the Standard Cosmological Model, a precise characterization of the role played by the theory of inflation, up to a detailed analysis of the anisotropic and inhomogeneous cosmological models. The most peculiar feature of this book is its uniqueness in treating advanced topics of quantum cosmology with a well-t
Big bang theory. --- Singularities (Mathematics) --- Cosmology --- Mathematical models.
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"The Big Bang is dead and astrophysicist Adam Frank explains how our experience of time will change as a result"-- "The Big Bang is dead ! It is no longer the beginning of time. Allowing us a peek into the cutting edge of cosmology, astrophysicist Adam Frank explains how this change in our origins will affect every aspect of our lives"--
Cosmology. --- Big bang theory. --- Beginning. --- Life --- Space and time. --- SCIENCE / General. --- SCIENCE / Cosmology. --- HISTORY / General. --- Origin.
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Première biographie complète du mathématicien-cosmologiste Georges Lemaître, considéré comme le "père du Big Bang", ce livre s'attache d'abord à saisir les apports scientifiques majeurs de Georges Lemaître non seulement en cosmologie mais aussi en mécanique, en algèbre ou en analyse numérique. Son rôle de précurseur dans le domaine des premiers ordinateurs est aussi mis en évidence ainsi que ses contributions à la physique moléculaire ou à la compréhension de la théorie quantique naissante. Georges Lemaître était aussi un prêtre catholique. L'auteur essaie donc de restituer son itinéraire religieux sur base de documents récemment mis à jour. La vie sacerdotale de Lemaître est notamment caractérisée par son apostolat auprès des étudiants chinois résidant à Louvain. L'ouvrage aborde enfin la manière dont Lemaître conciliait sa science et sa foi dans le cadre de ce qu'il appelait une théorie des deux chemins vers la "Vérité", et le rôle important qu'il joua durant un épisode crucial de l'histoire de l'Académie pontificale des sciences. Des anecdotes souvent inédites aident à reconstituer la personnalité hors du commun de cet homme "qui ne faisait jamais rien comme les autres", ni comme enseignant, ni comme chercheur, ni même comme prêtre.
Lemaître, Georges --- Astronomes --- Mathématiciens --- Big bang --- Lemaître, Georges, --- Cosmology --- Astrophysique --- Cosmologie --- Histoire --- Biography --- History --- 20th century --- Astronomes - Belgique - Biographies --- Mathématiciens - Belgique - Biographies --- Astrophysique - Histoire --- Cosmologie - Histoire --- Big bang - Histoire --- Lemaître, Georges, - 1894 --- -Astronomes - Belgique - Biographies --- -Cosmology --- -Astronomes --- Lemaître, Georges, - 1894-
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This book is written from the viewpoint of a deep connection between cosmology and particle physics. It presents the results and ideas on both the homogeneous and isotropic Universe at the hot stage of its evolution and in later stages. The main chapters describe in a systematic and pedagogical way established facts and concepts on the early and the present Universe. The comprehensive treatment, hence, serves as a modern introduction to this rapidly developing field of science. To help in reading the chapters without having to constantly consult other texts, essential materials from General Relativity and the theory of elementary particles are collected in the appendices. Various hypotheses dealing with unsolved problems of cosmology, and often alternative to each other, are discussed at a more advanced level. These concern dark matter, dark energy, matter-antimatter asymmetry, etc.
Big bang theory. --- Big bang cosmology --- Superdense theory --- Cosmogony --- Cosmology --- Expanding universe --- Big bang theory --- 539.12 --- 539.12 Elementary and simple particles (charge less than 3 including alpha-rays, beta-rays, gamma-rays as individual particles or as radiation) --- Elementary and simple particles (charge less than 3 including alpha-rays, beta-rays, gamma-rays as individual particles or as radiation) --- Universe, Expanding --- Astrophysics --- Red shift --- Univers --- Big bang. --- Expansion. --- Expanding universe. --- Expansion de l'univers
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Per chi non è uno specialista nel campo non è facile capire a fondo i concetti della cosmologia moderna, che si basano sulla Relatività Generale e si intrecciano con le conquiste più recenti della fisica delle particelle. L’intento di questo libro è quello di riuscire ad addomesticare i tecnicismi e le astrazioni dei cosmologi così da offrirli alla comprensione di tutti. Il libro ripercorre l’evoluzione del pensiero cosmologico moderno, partendo da Herschel e passando per i lavori della Leavitt, di Shapley, Hubble, Friedmann, Lemâitre, Gamow fino all’affermazione del modello del Big Bang con l’inflazione e alla recente scoperta dell’energia oscura come motore dell’espansione cosmica accelerata.
Big bang theory. --- Cosmology. --- Expanding universe. --- Cosmology --- Astronomy --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astrophysics --- Astronomy - General --- Astronomy. --- Physics. --- Astrophysics. --- Observations, Astronomical. --- Astronomy, Astrophysics and Cosmology. --- Astronomy, Observations and Techniques. --- Observations. --- Physical sciences --- Space sciences --- Deism --- Metaphysics --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical --- Astronomical physics --- Cosmic physics --- Physics
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An introduction to a new way of looking at history, from a perspective that stretches from the beginning of time to the present day, Maps of Time is world history on an unprecedented scale. Beginning with the Big Bang, David Christian views the interaction of the natural world with the more recent arrivals in flora and fauna, including human beings. Cosmology, geology, archeology, and population and environmental studies-all figure in David Christian's account, which is an ambitious overview of the emerging field of "Big History." Maps of Time opens with the origins of the universe, the stars and the galaxies, the sun and the solar system, including the earth, and conducts readers through the evolution of the planet before human habitation. It surveys the development of human society from the Paleolithic era through the transition to agriculture, the emergence of cities and states, and the birth of the modern, industrial period right up to intimations of possible futures. Sweeping in scope, finely focused in its minute detail, this riveting account of the known world, from the inception of space-time to the prospects of global warming, lays the groundwork for world history-and Big History-true as never before to its name.
Civilization --- Human evolution. --- World history. --- Philosophy. --- australian authors. --- big bang. --- biological sciences. --- biology. --- black holes. --- brain food. --- civilization. --- cosmology. --- creation myth. --- earth before humans. --- evolution. --- history first principles. --- history of our solar system. --- known world. --- mathematics and science. --- natural history. --- nature and ecology. --- nature. --- origins of universe. --- science nature. --- solar system. --- space sciences. --- space time. --- space. --- time. --- universe. --- why are we here. --- world history.
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The theory of random dynamical systems originated from stochastic differential equations. It is intended to provide a framework and techniques to describe and analyze the evolution of dynamical systems when the input and output data are known only approximately, according to some probability distribution. The development of this field, in both the theory and applications, has gone in many directions. In this manuscript we introduce measurable expanding random dynamical systems, develop the thermodynamical formalism and establish, in particular, the exponential decay of correlations and analyticity of the expected pressure although the spectral gap property does not hold. This theory is then used to investigate fractal properties of conformal random systems. We prove a Bowen’s formula and develop the multifractal formalism of the Gibbs states. Depending on the behavior of the Birkhoff sums of the pressure function we arrive at a natural classification of the systems into two classes: quasi-deterministic systems, which share many properties of deterministic ones; and essentially random systems, which are rather generic and never bi-Lipschitz equivalent to deterministic systems. We show that in the essentially random case the Hausdorff measure vanishes, which refutes a conjecture by Bogenschutz and Ochs. Lastly, we present applications of our results to various specific conformal random systems and positively answer a question posed by Bruck and Buger concerning the Hausdorff dimension of quadratic random Julia sets.
Mathematics --- Physical Sciences & Mathematics --- Geometry --- Calculus --- Functions, Meromorphic. --- Gibbs' equation. --- Fractals. --- Expanding universe. --- Universe, Expanding --- Fractal geometry --- Fractal sets --- Geometry, Fractal --- Sets, Fractal --- Sets of fractional dimension --- Equation, Gibbs' --- Meromorphic functions --- Mathematics. --- Dynamics. --- Ergodic theory. --- Dynamical Systems and Ergodic Theory. --- Ergodic transformations --- Continuous groups --- Mathematical physics --- Measure theory --- Transformations (Mathematics) --- Dynamical systems --- Kinetics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Physics --- Statics --- Math --- Science --- Astrophysics --- Big bang theory --- Cosmology --- Red shift --- Dimension theory (Topology) --- Differential equations --- Phase rule and equilibrium --- Thermodynamics --- Differentiable dynamical systems. --- Differential dynamical systems --- Dynamical systems, Differentiable --- Dynamics, Differentiable --- Global analysis (Mathematics) --- Topological dynamics
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Gamma-ray bursts are the brightest--and, until recently, among the least understood--cosmic events in the universe. Discovered by chance during the cold war, these evanescent high-energy explosions confounded astronomers for decades. But a rapid series of startling breakthroughs beginning in 1997 revealed that the majority of gamma-ray bursts are caused by the explosions of young and massive stars in the vast star-forming cauldrons of distant galaxies. New findings also point to very different origins for some events, serving to complicate but enrich our understanding of the exotic and violent universe. What Are Gamma-Ray Bursts? is a succinct introduction to this fast-growing subject, written by an astrophysicist who is at the forefront of today's research into these incredible cosmic phenomena. Joshua Bloom gives readers a concise and accessible overview of gamma-ray bursts and the theoretical framework that physicists have developed to make sense of complex observations across the electromagnetic spectrum. He traces the history of remarkable discoveries that led to our current understanding of gamma-ray bursts, and reveals the decisive role these phenomena could play in the grand pursuits of twenty-first century astrophysics, from studying gravity waves and unveiling the growth of stars and galaxies after the big bang to surmising the ultimate fate of the universe itself. What Are Gamma-Ray Bursts? is an essential primer to this exciting frontier of scientific inquiry, and a must-read for anyone seeking to keep pace with cutting-edge developments in physics today.
Gamma ray bursts. --- Stars --- Birth, Stellar --- Formation, Star --- Formation, Stellar --- Stellar birth --- Stellar formation --- Bursts, Cosmic gamma ray --- Bursts, Gamma ray --- Cosmic gamma ray bursts --- Transients, Gamma ray --- Gamma ray astronomy --- X-ray bursts --- Formation. --- Evolution --- GRB afterglows. --- GRB. --- GRBs. --- NASA GRB satellite. --- Partial Test Ban Treaty. --- Ray Klebesadel. --- Swift satellite. --- Vela Satellite Program. --- X-ray emission. --- afterglow emission. --- afterglow theory. --- afterglow. --- afterglows. --- anomalous X-ray pulsars. --- astronomers. --- astrophysics. --- big bang. --- central engine behavior. --- cosmic phenomena. --- cosmic rays. --- dust. --- electromagnetic spectrum. --- explosion propertie. --- galaxies. --- gamma-ray bursts. --- gas. --- gravitational waves. --- gravity waves. --- high-energy emission. --- neutrinos. --- neutron stars. --- nuclear testing. --- panchromatic observations. --- progenitors. --- reionization. --- relativistic shocks. --- scientific inquiry. --- soft Gamma-ray Repeaters. --- star formation. --- supernova. --- young stars.
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