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Summary
Summary
Internationally renowned, award-winning theoretical physicist, New York Times bestselling author of A Universe from Nothing , and passionate advocate for reason, Lawrence Krauss tells the dramatic story of the discovery of the hidden world of reality--a grand poetic vision of nature--and how we find our place within it.
In the beginning there was light.
But more than this, there was gravity.
After that, all hell broke loose...
In A Universe from Nothing , Krauss revealed how our entire universe could arise from nothing. Now, he reveals what that something--reality--is. And, reality is not what we think or sense--it's weird, wild, and counterintuitive; it's hidden beneath everyday experience; and its inner workings seem even stranger than the idea that something can come from nothing.
In a landmark, unprecedented work of scientific history, Krauss leads us to the furthest reaches of space and time, to scales so small they are invisible to microscopes, to the birth and rebirth of light, and into the natural forces that govern our existence. His unique blend of rigorous research and engaging storytelling invites us into the lives and minds of the remarkable, creative scientists who have helped to unravel the unexpected fabric of reality--with reason rather than superstition and dogma. Krauss has himself been an active participant in this effort, and he knows many of them well. The Greatest Story challenges us to re-envision ourselves and our place within the universe, as it appears that "God" does play dice with the universe. In the incisive style of his scintillating essays for The New Yorker , Krauss celebrates the greatest intellectual adventure ever undertaken--to understand why we are here in a universe where fact is stranger than fiction.
Author Notes
Lawrence Krauss is a theoretical physicist. Krauss is professor of physics, Foundation Professor of the School of Earth and Space Exploration, and director of the Origins Project at Arizona State University. He is the only physicist to have received awards from all three major U.S. physics societies: the American Physical Society, the American Association of Physics Teachers, and the American Institute of Physics.
Lawrence Krauss received undergraduate degrees in mathematics and physics from Carleton University and his Ph.D. in physics from MIT. Krauss taught at Yale University and was Chairman of the Physics Department at Case Western Reserve University.
Krauss is the author of several bestselling books, including The Fifth Essence (1991), Fear of Physics (1994), The Physics of Star Trek (1995), Beyond Star Trek (1997), Quintessence (2001), Atom (2002), Hiding in the Mirror (2005), Quantum Man: Richard Feynman's Life in Science (2010), and A Universe from Nothing: Why There Is Something Rather Than Nothing (2012).
(Bowker Author Biography)
Reviews (2)
Publisher's Weekly Review
Krauss (A Universe from Nothing), a theoretical physicist and director of the Origins Project at Arizona State University, exhaustively relates the history of physics in three parts, which thematically parallel parts of the Bible-Genesis, Exodus, and Revelation. He starts with such familiar topics as gravity, electromagnetism, and the experiments of Newton and Maxwell. Krauss defines science as the "discovery of connections between otherwise seemingly disparate phenomena" and explains how "physics doesn't proceed in the linear fashion that textbooks recount." This is shown starkly in the discoveries of quantum mechanics, gauge symmetry, and "the weak interaction," which "is largely responsible for our existence." While the advanced concepts will challenge lay readers, they're balanced with historical context, veins of dark and subtle humor, and Star Trek references. Along the way, Krauss provides anecdotes about luminaries such as Einstein and Planck alongside lesser-known achievers such as Chien-Shiung Wu and Irène and Frédéric Joliot-Curie. In confident and verbose prose, Krauss tells a story that both celebrates and explores science. Through it, he reminds readers why scientists build such complicated machinery and push the boundaries of the quantum world when nothing makes sense: "For no more practical reason than to celebrate and explore the beauty of nature." Agent: John Brockman, Brockman Inc. (Apr.) © Copyright PWxyz, LLC. All rights reserved.
Library Journal Review
The story of reality-or at least as we understand it-this book is a testament to perseverance, a riveting account of dogged scientific effort to comprehend the fundamental forces of nature. Krauss (director, Origins Project, Arizona State Univ.; Fear of Physics) has a knack for making complex concepts accessible to lay readers who are willing to put in time and energy. Covering everything from Plato's allegory of the cave to the discovery of the Higgs boson and beyond, he describes the process by which scientists made sense of the universe, a long, arduous, and collaborative journey filled with false starts, red herrings, twists and turns, and creative thinking. While many consider the Bible to be the greatest story ever told, Krauss believes that this tale is the better one, a look at how science explains the mysteries of the origins and smallest building blocks of life. Verdict A must-read for anyone who enjoyed Krauss's previous titles, especially A Universe from Nothing, and those interested in delving into the history of science.-Holly Boyer, Reston, VA © Copyright 2017. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
Excerpts
Excerpts
The Greatest Story Ever Told--So Far Chapter 1 FROM THE ARMOIRE TO THE CAVE The simple inherit folly, but the prudent are crowned with knowledge. --PROVERBS 14:18 In my beginning there was light. Surely there was light at the beginning of time, but before we can get to the beginning of time, we will need to explore our own beginnings, which also means exploring the beginning of science. And that means returning to the ultimate motive for both science and religion: the longing for something else. Something beyond the universe of our experience. For many people, that longing translates into something that gives meaning and purpose to the universe and extends to a longing for some hidden place that is better than the world in which we live, where sins are forgiven, pain is absent, and death does not exist. Others, however, long for a hidden place of a very different sort, the physical world beyond our senses, the world that helps us understand how things behave the way they do, rather than why. This hidden world underlies what we experience, and the understanding of it gives us the power to change our lives, our environment, and our future. The contrast between these two worlds is reflected in two very different works of literature. The first, The Lion, the Witch and the Wardrobe, by C. S. Lewis, is a twentieth-century children's fantasy with decidedly religious overtones. It captures a childhood experience most of us have had--looking under the bed or in the closet or in the attic for hidden treasure or evidence that there is more out there than what we normally experience. In the book, several schoolchildren discover a strange new world, Narnia, by climbing into a large wardrobe in the country house outside London where they have been sequestered for their protection during the Second World War. The children help save Narnia with the aid of a lion, who lets himself be humiliated and sacrificed, Christlike, at an altar in order to conquer evil in his world. While the religious allusion in Lewis's story is clear, we can also interpret it in another way--as an allegory, not for the existence of God or the devil, but rather for the remarkable and potentially terrifying possibilities of the unknown, possibilities that lie just beyond the edge of our senses, just waiting for us to be brave enough to seek them out. Possibilities that, once revealed, may enrich our understanding of ourselves or, for some who feel a need, provide a sense of value and purpose. The portal to a hidden world inside the wardrobe is at once safe, with the familiar smell of oft-worn clothes, and mysterious. It implies the need to move beyond classical notions of space and time. For if nothing is revealed to an observer who is in front of or behind the wardrobe, and something is revealed only to someone inside, then the space experienced inside the wardrobe must be far larger than that seen from its outside. Such a concept is characteristic of a universe in which space and time can be dynamical, as in the General Theory of Relativity, where, for example, from outside the "event horizon" of a black hole--that radius inside of which there is no escape--a black hole might appear to comprise a small volume, but for an observer inside (who has not yet been crushed to smithereens by the gravitational forces present), the volume can look quite different. Indeed, it is possible, though beyond the domain where we can perform reliable calculations, that the space inside a black hole might provide a portal to another universe disconnected from our own. But the central point I want to return to is that the possibility of universes beyond our perception seems to be tied, in the literary and philosophical imagination, at least, to the possibility that space itself is not what it seems. The harbinger of this notion, the "ur" story if you will, was written twenty-three centuries before Lewis penned his fantasy. I refer to Plato's Republic, and in particular to my favorite section, the Allegory of the Cave. But in spite of its early provenance, it illuminates more directly and more clearly both the potential necessity and the potential perils of searching for understanding beyond the reach of our immediate senses. In the allegory, Plato likens our experience of reality to that of a group of individuals who live their entire lives imprisoned inside a cave, forced to face a blank wall. Their only view of the real world is that wall, which is illuminated by a fire behind them, and on which they see shadows moving. The shadows come from objects located behind them that the light of the fire projects on the wall. I show the drawing below, which came from the high school text in which I first read this allegory, in a 1961 translation of Plato's dialogues. The drawing is amusing because it clearly reflects as much about the time it was drawn as it does the configuration of the cave described in the dialogue. Why, for example, are the prisoners here all women, and scantily clad ones at that? In Plato's day, any sexual allusion might easily have displayed young boys. Plato argues that the prisoners will view the shadows as reality and even give them names. This is not unreasonable, and it is, in one sense, as we shall soon see, a very modern view of what reality is, namely that which we can directly measure. My favorite definition of reality still is that given by the science fiction writer Philip K. Dick, who said, "Reality is that which, when you stop believing in it, doesn't go away." For the prisoners, the shadows are what they see. They are also likely to hear only the echoes of noises made behind them as the sounds bounce off the wall. Plato likened a philosopher to a prisoner who is freed from bondage and forced, almost against his will, to not only look at the fire, but to move past it, and out to the daylight beyond. First, the poor soul will be in distress, with the glare of the fire and the sunshine beyond the cave hurting his eyes. Objects will appear completely unfamiliar; they will not resemble their shadows. Plato argues that the new freeman may still imagine the shadows that he is used to as truer representations than the objects themselves that are casting the shadows. If the individual is reluctantly dragged out into the sunshine, ultimately all of these sensations of confusion and pain will be multiplied. But eventually, he will become accustomed to the real world, will see the stars and Moon and sky, and his soul and mind will be liberated of the illusions that had earlier governed his life. If the person returns to the cave, Plato argues, two things would happen. First, because his eyes would no longer be accustomed to the darkness, he would be less able to distinguish the shadows and recognize them, and his compatriots would view him as handicapped at best, and dim at worst. Second, he would no longer view the petty and myopic priorities of his former society, or the honors given to those who might best recognize the shadows and predict their future, as worthy of his respect. As Plato poetically put it, quoting from Homer: "Better to be the poor servant of a poor master, and to endure anything, rather than think as they do and live after their manner." So much for those whose lives are lived entirely in illusion, which Plato suggests includes most of humanity. Then, the allegory states that the journey upward--into the light--is the ascent of the soul into the intellectual world. Clearly in Plato's mind only a retreat to the purely "intellectual world," a journey reserved for the few--aka philosophers--could replace illusion with reality. Happily, that journey is far more accessible today using the techniques of science, which combine reason and reflection with empirical inquiry. Nevertheless, the same challenge remains for scientists today: to see what is behind the shadows, to see that which, when you drop your preconceptions, doesn't disappear. While Plato doesn't explicitly mention it, not only would his fellow prisoners view the poor soul who had ventured out and returned as handicapped, but they would likely think he was crazy if he talked about the wonders that he had glimpsed: the Sun, the Moon, lakes, trees, and other people and their civilizations. This idea is strikingly modern. As the frontiers of science have moved further and further away from the world of the familiar and the world of common sense as inferred from our direct experience, our picture of the reality underlying our experience is getting increasingly difficult for us to comprehend or accept. Some find it more comforting to retreat to myth and superstition for guidance. But, we have every reason to expect that "common sense," which first evolved to help us cope with predators in the savannas of Africa, might lead us astray when we attempt to think about nature on vastly different scales. We didn't evolve to intuitively understand the world of the very small, the very big, or the very fast. We shouldn't expect the rules we have come to rely on for our daily lives to be universal. While that myopia was useful from an evolutionary perspective, as thinking beings we can move beyond it. In this regard, I cannot resist quoting one last admonition in Plato's allegory: "In the world of knowledge the idea of good appears last of all and is seen only with an effort; and, when seen, is also inferred to be the author of all things good and right, parent of light, and . . . the immediate source of reason and truth." Plato further argues that this is what those who would act rationally should strive for, in both public and private life--seeking the "good" by focusing on reason and truth. He suggests that we can only do so by exploring the realities that underlie the world of our direct experience, rather than by exploring the illusions of a reality that we might want to exist. Only through rational examination of what is real, and not by faith alone, is rational action--or good--possible. Today, Plato's vision of "pure thought" has been replaced by the scientific method, which, based on both reason and experiment, allows us to discover the underlying realities of the world. Rational action in public and private life now requires a basis in both reason and empirical investigation, and it often requires a departure from the solipsistic world of our direct experience. This principle is the source of most of my own public activism in opposition to government policies based on ideology rather than evidence, and it is also probably why I respond so negatively to the concept of the "sacred"--implying as it does some idea or admonition that is off-limits to public questioning, exploration, discussion, and sometimes ridicule. It is hard to state this view more strongly than I did in a New Yorker piece: "Whenever scientific claims are presented as unquestionable, they undermine science. Similarly, when religious actions or claims about sanctity can be made with impunity in our society, we undermine the basis of modern secular democracy. We owe it to ourselves and to our children not to give a free pass to governments--totalitarian, theocratic, or democratic--that endorse, encourage, enforce, or otherwise legitimize the suppression of open questioning in order to protect ideas that are considered 'sacred.' Five hundred years of science have liberated humanity from the shackles of enforced ignorance." Philosophical reflections aside, the prime reason I am introducing Plato's cave here is that it can provide a concrete example of the nature of the scientific discoveries at the heart of the story I want to tell. Imagine a shadow that our prisoners might see on the wall, displayed by an evil puppeteer located on a ledge in front of the fire: This shadow displays both length and directionality, two concepts that we, who are not confined to the cave, take for granted. However, as the prisoners watch, this shadow changes: Later it looks like this: And again later like this: And later still, like this: What would the prisoners infer from all of this? Presumably, that concepts such as length or direction have no absolute meaning. The objects in their world can change both length and directionality arbitrarily. In the reality of their direct experience, neither length nor directionality appears to have significance. What will the natural philosopher, who has escaped to the surface to explore the richer world beyond the shadows, discover? He will see that the shadow is first of all just a shadow: a two-dimensional image on the wall cast from a real, three-dimensional object located behind the prisoners. He will see that the object has a fixed length that never changes, and that it's accompanied by an arrow that is always on the same side of the object. From a vantage point slightly above the object, he sees that the series of images results from the projection of a rotating weather vane onto the wall: When he returns to join his former colleagues, the philosopher-scientist can explain that an absolute quantity called length doesn't change over time, and that directionality can be assigned unambiguously to certain objects as well. He will tell his friends that the real world is three-dimensional, not two-dimensional, and that once they understand, all of their confusion about the seemingly arbitrary changes will disappear. Would they believe him? It would be a tough sell because they won't have an intuitive idea of what a rotation is (after all, with an intuition based purely on two-dimensional experience, it would likely be difficult to "picture" mentally any rotations in a third dimension). Blank stares? Probably. The loony bin? Maybe. However, he might win over the community by stressing attractive characteristics associated with his claim: behavior that on the surface appears to be complex and arbitrary can be shown to result from a much simpler underlying picture of nature, and seemingly disparate phenomena are actually connected and can be part of a unified whole. Better still, he could make predictions that his friends could test. First, he could argue that, if the apparent change in length of the shadows measured by the group is really due to a rotation in a third dimension, whenever the length of the object briefly vanishes, it will immediately reemerge with the arrow pointing in the opposite direction. Second, he could argue that as the length oscillates, the maximum length of the shadow when the arrow is pointing in one direction will always be exactly the same as the maximum length of the shadow when it is pointing in the other direction. Plato's cave thus becomes an allegory for far more than he may have intended. Plato's freed man discovers the hallmarks of the remarkable true story of our own struggle to understand nature on its most fundamental scales of space, time, and matter. We too have had to escape the shackles of our prior experience to uncover profound and beautiful simplifications and predictions that can be as terrifying as they are wonderful. But just as the light beyond Plato's cave is painful to the eyes at first, with time it becomes mesmerizing. And once witnessed, there is no going back. Excerpted from The Greatest Story Ever Told ... So Far: Why Are We Here? by Lawrence M. Krauss All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.Table of Contents
Prologue | p. 1 |
Part 1 Genesis | |
Chapter 1 From the Armoire to the Cave | p. 9 |
Chapter 2 Seeing in the Dark | p. 19 |
Chapter 3 Through a Glass, Lightly | p. 33 |
Chapter 4 There, and Back Again | p. 45 |
Chapter 5 A Stitch in Time | p. 55 |
Chapter 6 The Shadows of Reality | p. 71 |
Chapter 7 A Universe Stranger than Fiction | p. 83 |
Chapter 8 A Wrinkle in Time | p. 97 |
Chapter 9 Decay and Rubble | p. 113 |
Chapter 10 From Here to Infinity: Shedding Light on the Sun | p. 125 |
Part 2 Exodus | |
Chapter 11 Desperate Times and Desperate Measures | p. 139 |
Chapter 12 March of the Titans | p. 151 |
Chapter 13 Endless Forms Most Beautiful: Symmetry Strikes Back | p. 167 |
Chapter 14 Cold, Stark Reality: Breaking Bad or Beautiful? | p. 181 |
Chapter 15 Living inside a Superconductor | p. 191 |
Chapter 16 The Bearable Heaviness of Being: Symmetry Broken, Physics Fixed | p. 201 |
Part 3 Revelation | |
Chapter 17 The Wrong Place at the Right Time | p. 211 |
Chapter 18 The Fog Lifts | p. 219 |
Chapter 19 Free at Last | p. 231 |
Chapter 20 Spanking the Vacuum | p. 249 |
Chapter 21 Gothic Cathedrals of the Twenty-First Century | p. 259 |
Chapter 22 More Questions than Answers | p. 275 |
Chapter 23 From a Beer Party to the End of Time | p. 289 |
Epilogue: Cosmic Humility | p. 301 |
Acknowledgments | p. 307 |
Index | p. 309 |