now the physics of time and the ephemeral moment that einstein could not explain

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Now The Physics Of Time

Author : Richard A. Muller
ISBN : 9780393285246
Genre : Science
File Size : 55. 95 MB
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“Now” is a simple yet elusive concept. You are reading the word “now” right now. But what does that mean? What makes the ephemeral moment “now” so special? Its enigmatic character has bedeviled philosophers, priests, and modern-day physicists from Augustine to Einstein and beyond. Einstein showed that the flow of time is affected by both velocity and gravity, yet he despaired at his failure to explain the meaning of “now.” Equally puzzling: why does time flow? Some physicists have given up trying to understand, and call the flow of time an illusion, but the eminent experimentalist physicist Richard A. Muller protests. He says physics should explain reality, not deny it. In Now, Muller does more than poke holes in past ideas; he crafts his own revolutionary theory, one that makes testable predictions. He begins by laying out—with the refreshing clarity that made Physics for Future Presidents so successful—a firm and remarkably clear explanation of the physics building blocks of his theory: relativity, entropy, entanglement, antimatter, and the Big Bang. With the stage then set, he reveals a startling way forward. Muller points out that the standard Big Bang theory explains the ongoing expansion of the universe as the continuous creation of new space. He argues that time is also expanding and that the leading edge of the new time is what we experience as “now.” This thought-provoking vision has remarkable implications for some of our biggest questions, not only in physics but also in philosophy—including the ongoing debate about the reality of free will. Moreover, his theory is testable. Muller’s monumental work will spark major debate about the most fundamental assumptions of our universe, and may crack one of physics’s longest-standing enigmas.

Cycles Of Time

Author : Roger Penrose
ISBN : 9781446402214
Genre : Science
File Size : 81. 34 MB
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What came before the Big Bang? How did the universe begin and must it inevitably end? In this remarkable book Roger Penrose brilliantly illuminates some of the deepest mysteries of the universe. Cycles of Time contains a penetrating analysis of the second law of thermodynamics - according to which the 'randomness' of our world is continually increasing - and a thorough examination of the light-cone geometry of space-time. It combines these two central themes to show how the expected ultimate fate of our accelerating, expanding universe can actually be reinterpreted as the 'big bang' of a new one. Presenting various standard and non-standard cosmological models, discussing black holes in depth as well as taking in the role of the cosmic microwave background along the way, Roger Penrose argues that the Big Bang was not actually the beginning of everything - nor will it signal the end. Original and compelling, Cycles of Time offers new answers to the ultimate questions of life.

Just Six Numbers

Author : Martin Rees
ISBN : 9781780227757
Genre : Science
File Size : 64. 63 MB
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Astronomer Royal Martin Rees shows how the behaviour and origins of the universe can be explained by just six numbers. How did a single genesis event create billions of galaxies, black holes, stars and planets? How did atoms assemble - here on Earth, and perhaps on other worlds - into living beings intricate enough to ponder their origins? This book describes the recent avalanche of discoveries about the universe's fundamental laws, and the deep connections that exist between stars and atoms - the cosmos and the microscopic world. Just six numbers, imprinted in the big bang, determine the essence of our world, and this book devotes one chapter to explaining each.

Energy For Future Presidents The Science Behind The Headlines

Author : Richard A. Muller
ISBN : 9780393083941
Genre : Science
File Size : 55. 75 MB
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The author of Physics for Future Presidents returns to educate all of us on the most crucial conundrum facing the nation: energy. The near-meltdown of Fukushima, the upheavals in the Middle East, the BP oil rig explosion, and the looming reality of global warming have reminded the president and all U.S. citizens that nothing has more impact on our lives than the supply of and demand for energy. Its procurement dominates our economy and foreign policy more than any other factor. But the “energy question” is more confusing, contentious, and complicated than ever before. We need to know if nuclear power will ever really be safe. We need to know if solar and wind power will ever really be viable. And we desperately need to know if the natural gas deposits in Pennsylvania are a windfall of historic proportions or a false hope that will create more problems than solutions. Richard A. Muller provides all the answers in this must-read guide to our energy priorities now and in the coming years.

How It Began A Time Traveler S Guide To The Universe

Author : Chris Impey
ISBN : 9780393083057
Genre : Science
File Size : 72. 30 MB
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“Impey combines the vision of a practicing scientist with the voice of a gifted storyteller.”—Dava Sobel In this vibrant, eye-opening tour of milestones in the history of our universe, Chris Impey guides us through space and time, leading us from the familiar sights of the night sky to the dazzlingly strange aftermath of the Big Bang. What if we could look into space and see not only our place in the universe but also how we came to be here? As it happens, we can. Because it takes time for light to travel, we see more and more distant regions of the universe as they were in the successively greater past. Impey uses this concept—"look-back time"—to take us on an intergalactic tour that is simultaneously out in space and back in time. Performing a type of cosmic archaeology, Impey brilliantly describes the astronomical clues that scientists have used to solve fascinating mysteries about the origins and development of our universe. The milestones on this journey range from the nearby to the remote: we travel from the Moon, Jupiter, and the black hole at the heart of our galaxy all the way to the first star, the first ray of light, and even the strange, roiling conditions of the infant universe, an intense and volatile environment in which matter was created from pure energy. Impey gives us breathtaking visual descriptions and also explains what each landmark can reveal about the universe and its history. His lucid, wonderfully engaging scientific discussions bring us to the brink of modern cosmology and physics, illuminating such mind-bending concepts as invisible dimensions, timelessness, and multiple universes. A dynamic and unforgettable portrait of the cosmos, How It Began will reward its readers with a deeper understanding of the universe we inhabit as well as a renewed sense of wonder at its beauty and mystery.

Time Reborn

Author : Lee Smolin
ISBN : 9780141939438
Genre : Science
File Size : 24. 98 MB
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In Time Reborn, Lee Smolin, one of our foremost physicists and thinkers offers a radical new view of the nature of time and the cosmos Nothing seems more real than time passing. We experience life itself as a succession of moments. Yet throughout history, the idea that time is an illusion has been a religious and philosophical commonplace. We identify certain truths as 'eternal' constants, from moral principles to the laws of mathematics and nature: these are laws that exist not inside time, but outside it. From Newton and Einstein to today's string theorists and quantum physicists, the widest consensus is that the universe is governed by absolute, timeless laws. In Time Reborn, Lee Smolin argues that this denial of time is holding back both physics, and our understanding of the universe. We need a major revolution in scientific thought: one that embraces the reality of time and places it at the centre of our thinking. E may equal mc squared now, but that wasn't always the case. Similarly, as our understanding of the universe develops, Newton's fundamental laws might not remain so fundamental. Time, Smolin concludes, is not an illusion: it is the best clue we have to fundamental reality. Time Reborn explains how the true nature of time impacts on us, our world, and our universe. 'The strongest dose of clarity in written form to have come along in decades. The implications go far beyond physics, to economics, politics, and personal philosophy. Time Reborn places reality above theory in stronger and clearer terms than ever before, and the result is a path to better theory and potentially to a better society as well. Will no doubt be remembered as one of the essential books of the 21st century' Jaron Lanier [Praise for Lee Smolin's The Trouble With Physics]: 'The best book about contemporary science written for the layman that I have ever read . . . Read this book. Twice' Sunday Times 'Unusually broad and deep . . . his critical judgments are exceptionally penetrating' Roger Penrose 'Brave, uniquely well-informed . . . does a tremendous job' Mail on Sunday Lee Smolin is a theoretical physicist who has made important contributions to the search for quantum gravity. Born in New York City, he was educated at Hampshire College and Harvard University. Since 2001 he is a founding faculty member at Perimeter Institute for Theoretical Physics. His three earlier books explore philosophical issues raised by contemporary physics and cosmology. They are Life of the Cosmos (1997), Three Roads to Quantum Gravity (2001) and The Trouble with Physics (2006). He lives in Toronto.

The Big Picture

Author : Sean Carroll
ISBN : 9781780746074
Genre : Science
File Size : 33. 89 MB
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Where are we? Who are we? Do our beliefs, hopes and dreams mean anything out there in the void? Can human purpose and meaning ever fit into a scientific worldview? Acclaimed award-winning author Sean Carroll brings his extraordinary intellect to bear on the realms of knowledge, the laws of nature and the most profound questions about life, death and our place in it all. In a dazzlingly unique presentation, Carroll takes us through the scientific revolution’s avalanche of discoveries, from Darwin and Einstein to the origins of life, consciousness and the universe itself. Delving into the way the world works at the quantum, cosmic and human levels, he reveals how human values relate to scientific reality. An extraordinary synthesis of cosmos-sprawling science and profound thought, The Big Picture is Carroll’s quest to explain our world. Destined to sit alongside the works of our greatest thinkers, from Stephen Hawking and Carl Sagan to Daniel Dennett and E. O. Wilson, this book shows that while our lives may be forever dwarfed by the immensity of the universe, they can be redeemed by our capacity to comprehend it and give it meaning.

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