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The Rise And Fall Of The Black Hole Paradigm
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Book Synopsis The Rise and Fall of the Black Hole Paradigm by : Abhas Mitra
Download or read book The Rise and Fall of the Black Hole Paradigm written by Abhas Mitra and published by Pan Macmillan. This book was released on 2021-01-22 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Black holes have turned out to be the cornerstone of both physics and popular belief. But what if we were to realize that exact black holes cannot exist, even though their existence is apparently suggested by exact general relativistic solutions, and Roger Penrose won the 2020 Nobel Prize in Physics ‘for the discovery that black hole formation is a robust prediction of the general theory of relativity’? While it might seem far-fetched to claim so, it will be worth remembering that the finest theoretical physicists like Albert Einstein and Paul Dirac did not believe in black holes, and Stephen Hawking finally thought that there are no exact black holes. While the black hole paradigm has become commonplace in popular consciousness, in the last decade, noise has consistently grown about the many physical effects which can inhibit the formation of exact mathematical black holes. In The Rise and Fall of the Black Hole Paradigm, Abhas Mitra shows us how, much before these developments, he had proven why the so-called black holes must only be black hole pretenders. He identified these black hole candidates to be Magnetospheric Eternally Collapsing Objects (MECOs) and, along with Darryl J. Leiter and Stanley L. Robertson, generalized them. Recent evidence for the existence of strong magnetic fields around so-called black holes may provide confirmations of his claim.
Book Synopsis Exploring Black Holes by : Edwin F. Taylor
Download or read book Exploring Black Holes written by Edwin F. Taylor and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Black Holes, Information and the String Theory Revolution by : Leonard Susskind
Download or read book An Introduction to Black Holes, Information and the String Theory Revolution written by Leonard Susskind and published by World Scientific. This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: - A unique exposition of the foundations of the quantum theory of black holes including the impact of string theory, the idea of black hole complementarily and the holographic principle bull; Aims to educate the physicist or student of physics who is not an expert on string theory, on the revolution that has grown out of black hole physics and string theory
Book Synopsis Black Hole Survival Guide by : Janna Levin
Download or read book Black Hole Survival Guide written by Janna Levin and published by Anchor. This book was released on 2022-03-15 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the acclaimed author of Black Hole Blues and Other Songs from Outer Space—an authoritative and accessible guide to the most alluring and challenging phenomena of contemporary science. "[Levin will] take you on a safe black hole trip, an exciting travel story enjoyed from your chair’s event horizon.” —Boston Globe Through her writing, astrophysicist Janna Levin has focused on making the science she studies not just comprehensible but also, and perhaps more important, intriguing to the nonscientist. In this book, she helps us to understand and find delight in the black hole—perhaps the most opaque theoretical construct ever imagined by physicists—illustrated with original artwork by American painter and photographer Lia Halloran. Levin takes us on an evocative exploration of black holes, provoking us to imagine the visceral experience of a black hole encounter. She reveals the influence of black holes as they populate the universe, sculpt galaxies, and even infuse the whole expanse of reality that we inhabit. Lively, engaging, and utterly unique, Black Hole Survival Guide is not just informative—it is, as well, a wonderful read from first to last.
Download or read book Cycles of Time written by Roger Penrose and published by Vintage. This book was released on 2011-09-06 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: From Nobel prize-winner Roger Penrose, this groundbreaking book is for anyone "who is interested in the world, how it works, and how it got here" (New York Journal of Books). Penrose presents a new perspective on three of cosmology’s essential questions: What came before the Big Bang? What is the source of order in our universe? And what cosmic future awaits us? He shows how the expected fate of our ever-accelerating and expanding universe—heat death or ultimate entropy—can actually be reinterpreted as the conditions that will begin a new “Big Bang.” He details the basic principles beneath our universe, explaining various standard and non-standard cosmological models, the fundamental role of the cosmic microwave background, the paramount significance of black holes, and other basic building blocks of contemporary physics. Intellectually thrilling and widely accessible, Cycles of Time is a welcome new contribution to our understanding of the universe from one of our greatest mathematicians and thinkers.
Book Synopsis The X-ray Background by : Xavier Barcons
Download or read book The X-ray Background written by Xavier Barcons and published by Cambridge University Press. This book was released on 1992-07-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the current observational knowledge and understanding of the cosmic X-ray background.
Book Synopsis A Relativist's Toolkit by : Eric Poisson
Download or read book A Relativist's Toolkit written by Eric Poisson and published by Cambridge University Press. This book was released on 2004-05-06 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2004 textbook fills a gap in the literature on general relativity by providing the advanced student with practical tools for the computation of many physically interesting quantities. The context is provided by the mathematical theory of black holes, one of the most elegant, successful, and relevant applications of general relativity. Among the topics discussed are congruencies of timelike and null geodesics, the embedding of spacelike, timelike and null hypersurfaces in spacetime, and the Lagrangian and Hamiltonian formulations of general relativity. Although the book is self-contained, it is not meant to serve as an introduction to general relativity. Instead, it is meant to help the reader acquire advanced skills and become a competent researcher in relativity and gravitational physics. The primary readership consists of graduate students in gravitational physics. It will also be a useful reference for more seasoned researchers working in this field.
Book Synopsis Black Holes and Time Warps by : Kip S Thorne
Download or read book Black Holes and Time Warps written by Kip S Thorne and published by W. W. Norton & Company. This book was released on 1994 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this masterfully written and brilliantly informed work, Dr. Rhorne, the Feynman Professor of Theoretical Physics at Caltech, leads readers through an elegant, always human, tapestry of interlocking themes, answering the great question: what principles control our universe and why do physicists think they know what they know? Features an introduction by Stephen Hawking.
Book Synopsis Dark Matter and Dark Energy by : Brian Clegg
Download or read book Dark Matter and Dark Energy written by Brian Clegg and published by Icon Books. This book was released on 2019-08-08 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Clear and compact ... It's hard to fault as a brief, easily digestible introduction to some of the biggest questions in the Universe' Giles Sparrow, BBC Four's The Sky at Night , Best astronomy and space books of 2019: 5/5 All the matter and light we can see in the universe makes up a trivial 5 per cent of everything. The rest is hidden. This could be the biggest puzzle that science has ever faced. Since the 1970s, astronomers have been aware that galaxies have far too little matter in them to account for the way they spin around: they should fly apart, but something concealed holds them together. That 'something' is dark matter - invisible material in five times the quantity of the familiar stuff of stars and planets. By the 1990s we also knew that the expansion of the universe was accelerating. Something, named dark energy, is pushing it to expand faster and faster. Across the universe, this requires enough energy that the equivalent mass would be nearly fourteen times greater than all the visible material in existence. Brian Clegg explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it.
Book Synopsis The Day We Found the Universe by : Marcia Bartusiak
Download or read book The Day We Found the Universe written by Marcia Bartusiak and published by Vintage. This book was released on 2010-03-09 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The riveting and mesmerizing story behind a watershed period in human history, the discovery of the startling size and true nature of our universe. On New Years Day in 1925, a young Edwin Hubble released his finding that our Universe was far bigger, eventually measured as a thousand trillion times larger than previously believed. Hubble’s proclamation sent shock waves through the scientific community. Six years later, in a series of meetings at Mount Wilson Observatory, Hubble and others convinced Albert Einstein that the Universe was not static but in fact expanding. Here Marcia Bartusiak reveals the key players, battles of will, clever insights, incredible technology, ground-breaking research, and wrong turns made by the early investigators of the heavens as they raced to uncover what many consider one of most significant discoveries in scientific history.
Book Synopsis Introduction to Black Hole Astrophysics by : Gustavo E. Romero
Download or read book Introduction to Black Hole Astrophysics written by Gustavo E. Romero and published by Springer. This book was released on 2013-09-14 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the lecture notes of a one-semester course on black hole astrophysics given by the author and is aimed at advanced undergraduate and graduate students with an interest in astrophysics. The material included goes beyond that found in classic textbooks and presents details on astrophysical manifestations of black holes. In particular, jet physics and detailed accounts of objects like microquasars, active galactic nuclei, gamma-ray bursts, and ultra-luminous X-ray sources are covered, as well as advanced topics like black holes in alternative theories of gravity. The author avoids unnecessary technicalities and to some degree the book is self-contained. The reader will find some basic general relativity tools in Chapter 1. The appendices provide some additional mathematical details that will be useful for further study, and a guide to the bibliography on the subject.
Book Synopsis Astrophysical Black Holes by : Francesco Haardt
Download or read book Astrophysical Black Holes written by Francesco Haardt and published by Springer. This book was released on 2015-11-03 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on graduate school lectures in contemporary relativity and gravitational physics, this book gives a complete and unified picture of the present status of theoretical and observational properties of astrophysical black holes. The chapters are written by internationally recognized specialists. They cover general theoretical aspects of black hole astrophysics, the theory of accretion and ejection of gas and jets, stellar-sized black holes observed in the Milky Way, the formation and evolution of supermassive black holes in galactic centers and quasars as well as their influence on the dynamics in galactic nuclei. The final chapter addresses analytical relativity of black holes supporting theoretical understanding of the coalescence of black holes as well as being of great relevance in identifying gravitational wave signals. With its introductory chapters the book is aimed at advanced graduate and post-graduate students, but it will also be useful for specialists.
Download or read book About Time written by P. C. W. Davies and published by Simon and Schuster. This book was released on 1996-04-09 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the ramifications of Einstein's relativity theory, exploring the mysteries of time and considering black holes, time travel, the existence of God, and the nature of the universe.
Book Synopsis The Illustrated Theory of Everything by : Stephen W. Hawking
Download or read book The Illustrated Theory of Everything written by Stephen W. Hawking and published by Phoenix Books. This book was released on 2011-05-03 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stephen W. Hawking, widely believed to have been one of be one of the worlds greatest minds, presents a series of seven lectures covering everything from big bang to black holes to string theory. These lectures not only capture the brilliance of Hawking's mind, but his characteristic wit as well. In The Illustrated Theory of Everything, Hawking begins with a history of ideas about the universe, from Aristotles determination that the Earth is round to Hubbles discovery, more than 2,000 years later, that the universe is expanding. Using that as a launching pad, he explores the reaches of modern physics, including theories on the origin of the universe (e.g., the Big Bang), the nature of black holes, and space-time. Finally, he poses the questions left unanswered by modern physics, especially how to combine all the partial theories into a unified theory of everything. If we find the answer to that, he claims, it would be the ultimate triumph of human reason. A great popularizer of science as well as a brilliant scientist, Hawking believes that advances in theoretical science should be understandable in broad principle by everyone, not just a few scientists. In this book, he offers a fascinating voyage of discovery about the cosmos and our place in it. It is a book for anyone who has ever gazed at the night sky and wondered what was up there and how it came to be.
Book Synopsis A Philosophical Approach to MOND by : David Merritt
Download or read book A Philosophical Approach to MOND written by David Merritt and published by Cambridge University Press. This book was released on 2020-04-30 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dark matter is a fundamental component of the standard cosmological model, but in spite of four decades of increasingly sensitive searches, no-one has yet detected a single dark-matter particle in the laboratory. An alternative cosmological paradigm exists: MOND (Modified Newtonian Dynamics). Observations explained in the standard model by postulating dark matter are described in MOND by proposing a modification of Newton's laws of motion. Both MOND and the standard model have had successes and failures – but only MOND has repeatedly predicted observational facts in advance of their discovery. In this volume, David Merritt outlines why such predictions are considered by many philosophers of science to be the 'gold standard' when it comes to judging a theory's validity. In a world where the standard model receives most attention, the author applies criteria from the philosophy of science to assess, in a systematic way, the viability of this alternative cosmological paradigm.
Book Synopsis The Life of the Cosmos by : Lee Smolin
Download or read book The Life of the Cosmos written by Lee Smolin and published by Oxford University Press. This book was released on 1999-03-04 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lee Smolin offers a new theory of the universe that is at once elegant, comprehensive, and radically different from anything proposed before. Smolin posits that a process of self organization like that of biological evolution shapes the universe, as it develops and eventually reproduces through black holes, each of which may result in a new big bang and a new universe. Natural selection may guide the appearance of the laws of physics, favoring those universes which best reproduce. The result would be a cosmology according to which life is a natural consequence of the fundamental principles on which the universe has been built, and a science that would give us a picture of the universe in which, as the author writes, "the occurrence of novelty, indeed the perpetual birth of novelty, can be understood." Smolin is one of the leading cosmologists at work today, and he writes with an expertise and force of argument that will command attention throughout the world of physics. But it is the humanity and sharp clarity of his prose that offers access for the layperson to the mind bending space at the forefront of today's physics.
Book Synopsis J. Robert Oppenheimer and the American Century by : David C. Cassidy
Download or read book J. Robert Oppenheimer and the American Century written by David C. Cassidy and published by Plunkett Lake Press. This book was released on 2019-07-31 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Born into a wealthy, secular New York Jewish family, a student of the Ethical Culture School in New York, later educated in theoretical physics at Harvard, Cambridge (UK) and Göttingen (Germany), appointed professor at UC-Berkeley and Caltech, J. Robert Oppenheimer (1904-1967) was on the forefront of the rise of theoretical physics in the United States to world-class status, contributing to the century-altering success of the Manhattan Project to build the atomic bomb. As the scientific leader of that project, Oppenheimer played a key advisory role in government, helping to forge the post-war military-industrial-scientific alliance that poured huge resources into post-war “big science.” Because of his position, Oppenheimer became for the public the heroic cultural icon of American science, but he also became a target and a tragic victim of the cold-war fear and nuclear war preparations underlying the McCarthy era. This biographical study focuses on Oppenheimer’s cultural and intellectual rise as a theoretical physicist as well as his role within the trajectory of the nation’s rise to scientific leadership and the post-war forces that confronted American science. This biography is nearly unique in that it includes discussions for general audiences of Oppenheimer’s work and contributions to theoretical physics, including his famous prediction of black holes sixty years before their confirmed discovery. “Now David Cassidy brings us the best account of Oppenheimer’s life in science with J. Robert Oppenheimer and the American Century.” — T. Powers, New York Review of Books “Cassidy covers this ground admirably in his thoughtful biography of Oppenheimer.” —Scientific American “Cassidy’s book...is probably the best single study of Oppenheimer to date.” — B. Bernstein, Physics World “Cassidy’s biography of J. Robert Oppenheimer is a concise, well-written book about the life of the famous 20th century scientist... A worthwhile read for anyone with an interest in the coming of age of American physics and how the weaknesses and strengths of one of its leaders shaped the relationship between science and the government for decades to come.” — Physics and Society “This biography is a detailed and beautifully written work. Cassidy expands beyond the traditional scope of a biography and expertly explores the surrounding environment that shaped Oppenheimer’s life.” — Atomic Archive “This excellent biography of J. Robert Oppenheimer places the eminent physicist in the context of twentieth century America... Cassidy... provides excellent insights into the life and times of this complex man. Unlike many other biographers of Oppenheimer, Cassidy assesses his role as a twentieth century theoretical physicist.” — Alsos Digital Library for Nuclear Issues “A superbly researched biography... There is no doubt that Cassidy gives us a valuable perspective on Oppenheimer’s life. The author is shy neither of editorializing nor of making judgments about the personalities who appear in the story... These comments are almost unfailingly fair and justified by the evidence.” — Times Higher Education “Cassidy... has written a book that neither praises Oppenheimer nor buries his reputation but, rather, puts some tarnish upon the icon.” — G. Herken, Science
