The Problem Of Time
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The Problem Of Time
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Author : Edward Anderson
language : en
Publisher: Springer
Release Date : 2017-09-18
The Problem Of Time written by Edward Anderson and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-18 with Science categories.
This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond.
International Relations And The Problem Of Time
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Author : Andrew R. Hom
language : en
Publisher:
Release Date : 2020
International Relations And The Problem Of Time written by Andrew R. Hom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with History categories.
This book develops a novel approach to the issue of time's widespread but poorly understood influence on the study of international politics.
The Problem Of Time
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Author : John Alexander Gunn
language : en
Publisher: London : G. Allen & Unwin
Release Date : 1929
The Problem Of Time written by John Alexander Gunn and has been published by London : G. Allen & Unwin this book supported file pdf, txt, epub, kindle and other format this book has been release on 1929 with Space and time categories.
The Order Of Time
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Author : Carlo Rovelli
language : en
Publisher: Penguin
Release Date : 2018-05-08
The Order Of Time written by Carlo Rovelli and has been published by Penguin this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-08 with Science categories.
One of TIME’s Ten Best Nonfiction Books of the Decade "Meet the new Stephen Hawking . . . The Order of Time is a dazzling book." --The Sunday Times From the bestselling author of Seven Brief Lessons on Physics, Reality Is Not What It Seems, Helgoland, and Anaximander comes a concise, elegant exploration of time. Why do we remember the past and not the future? What does it mean for time to "flow"? Do we exist in time or does time exist in us? In lyric, accessible prose, Carlo Rovelli invites us to consider questions about the nature of time that continue to puzzle physicists and philosophers alike. For most readers this is unfamiliar terrain. We all experience time, but the more scientists learn about it, the more mysterious it remains. We think of it as uniform and universal, moving steadily from past to future, measured by clocks. Rovelli tears down these assumptions one by one, revealing a strange universe where at the most fundamental level time disappears. He explains how the theory of quantum gravity attempts to understand and give meaning to the resulting extreme landscape of this timeless world. Weaving together ideas from philosophy, science and literature, he suggests that our perception of the flow of time depends on our perspective, better understood starting from the structure of our brain and emotions than from the physical universe. Already a bestseller in Italy, and written with the poetic vitality that made Seven Brief Lessons on Physics so appealing, The Order of Time offers a profoundly intelligent, culturally rich, novel appreciation of the mysteries of time.
Time S Arrow And Archimedes Point
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Author : Huw Price
language : en
Publisher: Oxford University Press
Release Date : 1997-12-04
Time S Arrow And Archimedes Point written by Huw Price and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-12-04 with Philosophy categories.
Why is the future so different from the past? Why does the past affect the future and not the other way around? What does quantum mechanics really tell us about the world? In this important and accessible book, Huw Price throws fascinating new light on some of the great mysteries of modern physics, and connects them in a wholly original way. Price begins with the mystery of the arrow of time. Why, for example, does disorder always increase, as required by the second law of thermodynamics? Price shows that, for over a century, most physicists have thought about these problems the wrong way. Misled by the human perspective from within time, which distorts and exaggerates the differences between past and future, they have fallen victim to what Price calls the "double standard fallacy": proposed explanations of the difference between the past and the future turn out to rely on a difference which has been slipped in at the beginning, when the physicists themselves treat the past and future in different ways. To avoid this fallacy, Price argues, we need to overcome our natural tendency to think about the past and the future differently. We need to imagine a point outside time -- an Archimedean "view from nowhen" -- from which to observe time in an unbiased way. Offering a lively criticism of many major modern physicists, including Richard Feynman and Stephen Hawking, Price shows that this fallacy remains common in physics today -- for example, when contemporary cosmologists theorize about the eventual fate of the universe. The "big bang" theory normally assumes that the beginning and end of the universe will be very different. But if we are to avoid the double standard fallacy, we need to consider time symmetrically, and take seriously the possibility that the arrow of time may reverse when the universe recollapses into a "big crunch." Price then turns to the greatest mystery of modern physics, the meaning of quantum theory. He argues that in missing the Archimedean viewpoint, modern physics has missed a radical and attractive solution to many of the apparent paradoxes of quantum physics. Many consequences of quantum theory appear counterintuitive, such as Schrodinger's Cat, whose condition seems undetermined until observed, and Bell's Theorem, which suggests a spooky "nonlocality," where events happening simultaneously in different places seem to affect each other directly. Price shows that these paradoxes can be avoided by allowing that at the quantum level the future does, indeed, affect the past. This demystifies nonlocality, and supports Einstein's unpopular intuition that quantum theory describes an objective world, existing independently of human observers: the Cat is alive or dead, even when nobody looks. So interpreted, Price argues, quantum mechanics is simply the kind of theory we ought to have expected in microphysics -- from the symmetric standpoint. Time's Arrow and Archimedes' Point presents an innovative and controversial view of time and contemporary physics. In this exciting book, Price urges physicists, philosophers, and anyone who has ever pondered the mysteries of time to look at the world from the fresh perspective of Archimedes' Point and gain a deeper understanding of ourselves, the universe around us, and our own place in time.
The Direction Of Time
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Author : Hans Reichenbach
language : en
Publisher: Univ of California Press
Release Date : 1991
The Direction Of Time written by Hans Reichenbach and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Philosophy categories.
Internationally known for his work in the theory of probability, symbolic logic, analysis of space and time, and philosophical problems of quantum physics, Hans Reichenbach (1891-1953) was one of the twentieth century's most incisive philosophers of science. In this, his last book, first published in 1956, he brought all his previous research and insight to bear on the most intractable and intriguing problem in physics: the elusive nature of time. This far-sighted work of philosophy illuminates the metaphysical questions with which contemporary researchers in cosmology and particle physics must contend. Arguing as he did throughout his career that developments in scientific knowledge must influence philosophy, Reichenbach shows how completely the Kantian a priori--and many of our most basic intuitions about the structure of space and time--are undermined by twentieth-century physics. He shows how the philosophical understanding of time is necessary to understanding contemporary problems of cosmology. This new edition of The Direction of Time, published in the year of Reichenbach's centennial, includes an introduction by Hilary Putnam, one of Reichenbach's most eminent students, describing the metaphysical assumptions and arguments embedded in Reichenbach's philosophy, and their importance for the development of contemporary philosophy pf science.
Philosophical Problems Of Space And Time
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Author : Adolf Grünbaum
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Philosophical Problems Of Space And Time written by Adolf Grünbaum 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 2012-12-06 with Science categories.
It is ten years since Adolf Griinbaum published the first edition of this book. It was promptly recognized to be one of the few major works in the philosophy of the natural sciences of this generation. In part, this is so because Griinbaum has chosen a problem basic both to philosophy and to the natural sciences - the nature of space and time; and in part, this is so because he so admirably exemplifies that Aristotelian devotion to the intimate and mutual dependence of actual science and philosophical understanding. More than this, however, the quality of his work derives from his achievement in combining detail with scope. The problems of space and time have been among the most difficult in contemporary and classical thought, and Griinbaum has been responsible to the full depth and complexity of these difficulties. This revised and enlarged second edition is a work in progress, in the tradition of reflective analysis of modern science of such figures as Ehrenfest and Reichenbach. In publishing this work among the Boston Studies in the Philosophy of Science, we hope to contribute to and encourage that broad tradition of natural philosophy which is marked by the close collaboration of philoso phers and scientists. To this end, we have published the proceedings of our Colloquia, of meetings and conferences here and abroad, as well as the works of single authors.
International Relations And The Problem Of Time
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Author : Andrew R. Hom
language : en
Publisher: Oxford University Press
Release Date : 2020-05-26
International Relations And The Problem Of Time written by Andrew R. Hom and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-26 with Political Science categories.
What is time and how does it influence our knowledge of international politics? For decades International Relations (IR) paid little explicit attention to time. Recently this began to change as a range of scholars took an interest in the temporal dimensions of politics. Yet IR still has not fully addressed the issue of why time matters in international politics, nor has it reflected on its own use of time — how temporal ideas affect the way we work to understand political phenomena. Moreover, IR remains beholden to two seemingly contradictory visions of time: the time of the clock and a longstanding tradition treating time as a problem to be solved. International Relations and the Problem of Time develops a unique response to these interconnected puzzles. It reconstructs IR's temporal imagination by developing an argument that all times - from natural rhythms to individual temporal experience - spring from social and practical timing activities, or efforts to establish meaningful and useful relationships in complex and dynamic settings. In IR's case, across a surprisingly wide range of approaches scholars employ narrative timing techniques to make sense of confounding processes and events. This innovative account of time provides a more systematic and rigorous explanation for time in international politics. It also develops provocative insights about IR's own history, its key methodological commitments, supposedly 'timeless' statistical methods, historical institutions, and the critical vanguard of time studies. This book invites us to reimagine time, and in so doing to significantly rethink the way we approach the analysis of international politics.
Integrable Systems Quantum Groups And Quantum Field Theories
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Author : Alberto Ibort
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Integrable Systems Quantum Groups And Quantum Field Theories written by Alberto Ibort 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 2012-12-06 with Science categories.
In many ways the last decade has witnessed a surge of interest in the interplay between theoretical physics and some traditional areas of pure mathematics. This book contains the lectures delivered at the NATO-ASI Summer School on `Recent Problems in Mathematical Physics' held at Salamanca, Spain (1992), offering a pedagogical and updated approach to some of the problems that have been at the heart of these events. Among them, we should mention the new mathematical structures related to integrability and quantum field theories, such as quantum groups, conformal field theories, integrable statistical models, and topological quantum field theories, that are discussed at length by some of the leading experts on the areas in several of the lectures contained in the book. Apart from these, traditional and new problems in quantum gravity are reviewed. Other contributions to the School included in the book range from symmetries in partial differential equations to geometrical phases in quantum physics. The book is addressed to researchers in the fields covered, PhD students and any scientist interested in obtaining an updated view of the subjects.
An Experiment With Time
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Author : J.W. Dunne
language : en
Publisher: Courier Dover Publications
Release Date : 2022-08-17
An Experiment With Time written by J.W. Dunne and has been published by Courier Dover Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-17 with Body, Mind & Spirit categories.
A fascinating look at author J. W. Dunne’s controversial model of multidimensional time, based on precognitive dreams. The proposed concept accounted for insights into higher consciousness and many of life’s mysteries.