The Nature of Space and Time

The Nature of Space and Time PDF Author: Stephen Hawking
Publisher: Princeton University Press
ISBN: 1400834740
Category : Science
Languages : en
Pages : 160

View

Book Description
From two of the world's great physicists—Stephen Hawking and Nobel laureate Roger Penrose—a lively debate about the nature of space and time Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united into a single quantum theory of gravity? Can quantum and cosmos ever be combined? In The Nature of Space and Time, two of the world’s most famous physicists—Stephen Hawking (A Brief History of Time) and Roger Penrose (The Road to Reality)—debate these questions. The authors outline how their positions have further diverged on a number of key issues, including the spatial geometry of the universe, inflationary versus cyclic theories of the cosmos, and the black-hole information-loss paradox. Though much progress has been made, Hawking and Penrose stress that physicists still have further to go in their quest for a quantum theory of gravity.

Relativity and the Nature of Spacetime

Relativity and the Nature of Spacetime PDF Author: Vesselin Petkov
Publisher: Springer Science & Business Media
ISBN: 3642019625
Category : Science
Languages : en
Pages : 316

View

Book Description
Puts the emphasis on conceptual questions: Why is there no such thing as absolute motion? What is the physical meaning of relativity of simultaneity? But, the most important question that is addressed in this book is "what is the nature of spacetime?" or, equivalently, "what is the dimensionality of the world at the macroscopic level?" Develops answers to these questions via a thorough analysis of relativistic effects and explicitly asking whether the objects involved in those effects are three-dimensional or four-dimensional. Discusses the implication of the result (this analysis clearly shows that if the world and the physical objects were three-dimensional, none of the kinematic relativistic effects and the experimental evidence supporting them would be possible) for physics, philosophy, and our entire world view are discussed.

The Nature of Time: Geometry, Physics and Perception

The Nature of Time: Geometry, Physics and Perception PDF Author: R. Buccheri
Publisher: Springer Science & Business Media
ISBN: 9401001553
Category : Science
Languages : en
Pages : 446

View

Book Description
There are very few concepts that fascinate equally a theoretical physicist studying black holes and a patient undergoing seriolls mental psychosis. Time, undoubtedly, can well be ranked among them. For the measure of time inside a black hole is no less bizarre than the perception of time by a schizophrenic, who may perceive it as completely "suspended," "standing still," or even "reversing its direction. " The nature of time is certainly shrouded in profound mystery. This, perhaps, since the concept entails multifarious, and occasionally incongruous, facets. No wonder the subject attracts the serious attention of scholars on the one hand, and of the lay public on the other. Our Advanced Research Workshop is an excellent il lustration of this point, as the reader will soon discover. It turned out to be a unique professional forum for an unusually lively, effective and fruitful exchange of ideas and beliefs among 48 participants from 20 countries worldwide, selected out of more than a hundred applicants. The present book is based on the select talks presented at the meeting, and aims to provide the interested layperson and specialist alike with a multidisciplinary sampling of the most up-to-date scholarly research on the nature of time. It represents a coherent, state-of-the-art volume showing that research relevant to this topic is necessarily interdisciplinary and does not ignore such delicate issues as "altered" states of consciousness, religion and metaphysics.

The Quantum Structure of Space and Time

The Quantum Structure of Space and Time PDF Author:
Publisher:
ISBN: 9814477273
Category :
Languages : en
Pages :

View

Book Description


Space, Time, and Spacetime

Space, Time, and Spacetime PDF Author: Lawrence Sklar
Publisher: Univ of California Press
ISBN: 9780520031746
Category : Philosophy
Languages : en
Pages : 444

View

Book Description
In this book, Lawrence Sklar demonstrates the interdependence of science and philosophy by examining a number of crucial problems on the nature of space and time—problems that require for their resolution the resources of philosophy and of physics. The overall issues explored are our knowledge of the geometry of the world, the existence of spacetime as an entity over and above the material objects of the world, the relation between temporal order and causal order, and the problem of the direction of time. Without neglecting the most subtle philosophical points or the most advanced contributions of contemporary physics, the author has taken pains to make his explorations intelligible to the reader with no advanced training in physics, mathematics, or philosophy. The arguments are set forth step-by-step, beginning from first principles; and the philosophical discussions are supplemented in detail by nontechnical expositions of crucial features of physical theories.

Einstein for the 21st Century

Einstein for the 21st Century PDF Author: Peter Galison
Publisher: Princeton University Press
ISBN: 9780691135205
Category : Biography & Autobiography
Languages : en
Pages : 408

View

Book Description
"A stellar array of twenty historians and philosophers, artists and scientists, and writers and critics has contributed to this fascinating examination of Albert Einstein's legacy and its relevance for our times. We are presented with a multifaceted, interpretive effort to understand in novel terms Einstein's science, music, and politics, his relationship to God and aesthetics, and his unusual position at the divide between a now-vanished world and a future that will surely retain deep traces of his unique contributions and personality."--Diana K. Buchwald, Einstein Papers Project, Caltech "Whether serendipitously or by design, many of us have found ourselves involved in some aspect of Einstein's multifaceted legacy. This far-reaching volume of personal essays clarifies why Einstein's persona has been so seductive and so meaningful to us all."--Alice Calaprice, editor of The New Quotable Einstein "Here is the complete Einstein: the physicist, whose many insights and achievements persist at the forefront of modern science; the man, who remained idealistic, philosophically minded, and politically engaged throughout his life; and the iconic visionary, who continues to inspire individual creativity. This is a generous book, rich with detail."--Tony Robbin, author of Shadows of Reality: The Fourth Dimension in Relativity, Cubism, and Modern Thought "Einstein for the 21st Century is accessible to a broad readership and attractive because its distinguished authors, all experts in their disciplines, cover a very large intellectual space. There are so many fine and interesting contributions that there is something for nearly every potential reader."--Helge Kragh, University of Aarhus, Denmark

Philosophy of Physics

Philosophy of Physics PDF Author: Tim Maudlin
Publisher: Princeton University Press
ISBN: 1400842336
Category : Science
Languages : en
Pages : 200

View

Book Description
Philosophical foundations of the physics of space-time This concise book introduces nonphysicists to the core philosophical issues surrounding the nature and structure of space and time, and is also an ideal resource for physicists interested in the conceptual foundations of space-time theory. Tim Maudlin's broad historical overview examines Aristotelian and Newtonian accounts of space and time, and traces how Galileo's conceptions of relativity and space-time led to Einstein's special and general theories of relativity. Maudlin explains special relativity with enough detail to solve concrete physical problems while presenting general relativity in more qualitative terms. Additional topics include the Twins Paradox, the physical aspects of the Lorentz-FitzGerald contraction, the constancy of the speed of light, time travel, the direction of time, and more. Introduces nonphysicists to the philosophical foundations of space-time theory Provides a broad historical overview, from Aristotle to Einstein Explains special relativity geometrically, emphasizing the intrinsic structure of space-time Covers the Twins Paradox, Galilean relativity, time travel, and more Requires only basic algebra and no formal knowledge of physics

Flat and Curved Space-times

Flat and Curved Space-times PDF Author: George Francis Rayner Ellis
Publisher: Clarendon Press
ISBN: 9780198506560
Category : Science
Languages : en
Pages : 394

View

Book Description
The present book explains special relativity and the basics of general relativity from a geometric viewpoint. Space-time geometry is emphasized throughout, and provides the basis of understanding of the special relativity effects of time dilation, length contraction, and the relativity of simultaneity. Bondi's K-calculus is introduced as a simple means of calculating the magnitudes of these effects, and leads to a derivation of the Lorentz transformation as a way of unifying these results. The invariant interval of flat space-time is generalised to that of curved space-times, and leads to an understanding of the basic properties of simple cosmological models and of the collapse of a star to form a black hole. The appendices enable the advanced student to master the application of four-tensors to the relativistic study of energy and momentum, and of electromagnetism. In addition, this new edition contains up-to-date information on black holes, gravitational collapse, and cosmology.

Extra Dimensions in Space and Time

Extra Dimensions in Space and Time PDF Author: Itzhak Bars
Publisher: Springer Science & Business Media
ISBN: 9780387776385
Category : Science
Languages : en
Pages : 218

View

Book Description
In physics, the idea of extra spatial dimensions originates from Nordstöm’s 5-dimensional vector theory in 1914, followed by Kaluza-Klein theory in 1921, in an effort to unify general relativity and electromagnetism in a 5 dimensional space-time (4 dimensions for space and 1 for time). Kaluza–Klein theory didn’t generate enough interest with physicist for the next five decades, due to its problems with inconsistencies. With the advent of supergravity theory (the theory that unifies general relativity and supersymmetry theories) in late 1970’s and eventually, string theories (1980s) and M-theory (1990s), the dimensions of space-time increased to 11 (10-space and 1-time dimension). There are two main features in this book that differentiates it from other books written about extra dimensions: The first feature is the coverage of extra dimensions in time (Two Time physics), which has not been covered in earlier books about extra dimensions. All other books mainly cover extra spatial dimensions. The second feature deals with level of presentation. The material is presented in a non-technical language followed by additional sections (in the form of appendices or footnotes) that explain the basic equations and formulas in the theories. This feature is very attractive to readers who want to find out more about the theories involved beyond the basic description for a layperson. The text is designed for scientifically literate non-specialists who want to know the latest discoveries in theoretical physics in a non-technical language. Readers with basic undergraduate background in modern physics and quantum mechanics can easily understand the technical sections. Part I starts with an overview of the Standard Model of particles and forces, notions of Einstein’s special and general relativity, and the overall view of the universe from the Big Bang to the present epoch, and covers Two-Time physics. 2T-physics has worked correctly at all scales of physics, both macroscopic and microscopic, for which there is experimental data so far. In addition to revealing hidden information even in familiar "everyday" physics, it also makes testable predictions in lesser known physics regimes that could be analyzed at the energy scales of the Large Hadron Collider at CERN or in cosmological observations." Part II of the book is focused on extra dimensions of space. It covers the following topics: The Popular View of Extra Dimensions, Einstein and the Fourth Dimension, Traditional Extra Dimensions, Einstein's Gravity, The Theory Formerly Known as String, Warped Extra Dimensions, and How Do We Look For Extra Dimensions?

Space, Time and the Ethical Foundations

Space, Time and the Ethical Foundations PDF Author: Robert Elliott Allinson
Publisher: Routledge
ISBN: 1351727737
Category : Philosophy
Languages : en
Pages : 648

View

Book Description
This title was first published in 2002: In Space, Time and the Ethical Foundations ideas about space and time are developed, unique to the history of philosophy, that match the new physics. A well grounded metaphysics is presented which offers a safe haven between stifling scepticism and wild imagination, and an original philosophical method is demonstrated which sharply demarcates philosophy from the empirical sciences. A new foundation is laid for ethics by grounding ethics on the author's psycho-biological deduction of the emotions that offers a progressive model to replace the Freudian paradigm. An originally designed trans-cultural ethics, doubly grounded on both Eastern and Western thought, presents an antidote to the contemporary retreat into relativism. Insights from biology, psychology, evolutionary theory and ethics are brought together in a unique and fruitful synthesis. At the same time, human barbarisms such as the Holocaust are pointed to as reminders that there are just limits to compassion. This book presents a sophisticated text for metaphysics, epistemology and systematic ethics.