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“A lucid account of quantum theory (and why you should care) combined with a gripping narrative.”—San Francisco Chronicle
Quantum theory is weird. As Niels Bohr said, if you weren’t shocked by quantum theory, you didn’t really understand it. For most people, quantum theory is synonymous with mysterious, impenetrable science. And in fact for many years it was equally baffling for scientists themselves. In this tour de force of science history, Manjit Kumar gives a dramatic and superbly written account of this fundamental scientific revolution, focusing on the central conflict between Einstein and Bohr over the nature of reality and the soul of science. This revelatory book takes a close look at the golden age of physics, the brilliant young minds at its core—and how an idea ignited the greatest intellectual debate of the twentieth century. 16 pages of photographs- Sales Rank: #136116 in Books
- Published on: 2011-05-09
- Original language: English
- Number of items: 1
- Dimensions: 8.30" h x 1.20" w x 5.50" l, .85 pounds
- Binding: Paperback
- 448 pages
From Publishers Weekly
Starred Review. With vigor and elegance, Kumar describes the clash of titans that took place in the world of physics in the early 20th century, between physicists who did and those who did not believe in the quantum—the strange concept that we now know to be the underpinning of reality. The titans in Kumar's account of the conflict are Albert Einstein and Niels Bohr. In 1900, Max Planck discovered that electromagnetic radiation and the energy of light are transmitted not in a continuous flow but in small packets called quanta (singular, quantum). Bohr applied the idea of quantum to electrons, leading to the development of quantum mechanics. Bohr's theory explained experimental results that were inexplicable in classical theory. Einstein rejected Bohr's theory overturning reality in dangerous but also thrilling ways. The clash culminated at the 1927 Solway conference. Kumar, founding editor of Prometheus and a consulting science editor for Wired UK, recounts this meaty, dense, exciting story, filled with vivid characters and sharp insights. With physics undergoing another revolution today, Kumar reminds us of a time when science turned the universe upside down. 16 pages of photos. (May)
Copyright © Reed Business Information, a division of Reed Elsevier Inc. All rights reserved.
From Booklist
*Starred Review* “A first rate mind, extremely critical and far-seeing.” Einstein quickly sizes up the mental powers of Danish scientist Neils Bohr. How ironic that Bohr will demonstrate his farseeing vision most compellingly by discrediting Einstein’s own myopia! Kumar recounts Bohr’s astounding triumph over the great German theorist in their debate over quantum physics, thus illuminating a pivotal episode in modern physics. In that episode readers see how quantum mechanics integrates a range of promising but puzzling and seemingly disconnected subatomic discoveries. Readers see, for instance, how a cautious Max Planck reluctantly parcels light into discrete packets and how a befuddled Ernest Rutherford recognizes that only a radically new model of the atom can explain alpha-particle deflections. Though only specialists will understand the technical issues, Kumar keeps the main thread of his narrative accessible to the intelligent general reader, particularly clarifying how Einstein’s belief in objective reality pits him against the daringly agnostic Bohr, who leaves the mysteries of wave-particle duality veiled in statistical probabilities and abstract formulas. Intellectual exhilaration runs high as Einstein repeatedly presses Bohr—posing daunting questions about how to weigh an imaginary box of light and how to explain eerily “entangled” particles. The future of science hangs in the balance: physics becomes high drama. --Bryce Christensen
Review
“Exhilarating. . . . Reading [Quantum] is a bit like lifting the hood of your mind and moving the working parts around; it’s challenging and trippy—as only the Dr. Seuss realm of the quantum can be.” (Laura Miller - Salon)
“As a fairly innumerate non-scientist, I am perversely drawn to books about maths and science and usually abandon them with ignorance intact. However, Quantum by Manjit Kumar … is so well written that I now feel I’ve more or less got particle physics sussed. Quantum transcends genre—it is historical, scientific, biographical, philosophical.” (The Guardian)
“Kumar is an accomplished writer who knows how to separate the excitement of the chase from the sometimes impenetrable mathematics.” (Financial Times)
“[Kumar] leavens the mind-bending with sketches of the remarkable human beings involved in this godlike enterprise.” (Sara Lippincott - Los Angeles Times)
“A necessary, mesmerizing and meticulous volume.” (Sam Coale - Providence Journal)
“Kumar brings lucidity and a sense of drama to what is usually considered by lay readers as an esoteric, bubble-chambered subject. He does this without sacrificing the ‘science of it’ at the altar of readability. The triumphs and the tribulations, the politics and the physics, the humanity and the genius of the protagonists all collide to produce the sort of energy that we usually expect in a Le Carre thriller.” (The Hindustan Times)
“A super-collider of a book, shaking together an exotic cocktail of free-thinking physicists, tracing their chaotic interactions and seeing what God-particles and black holes fly up out of the maelstrom… Provides probably the most lucid and detailed intellectual history ever written of a body of theory that makes other scientific revolutions look limp-wristed by comparison.” (The Independent [UK])
“Lively....Chock-full of colorful characters.” (Graham Farmelo - The New York Times Book Review)
“One of the best guides yet to the central conundrums of modern physics.” (John Banville, author of The Sea)
Most helpful customer reviews
184 of 188 people found the following review helpful.
A brilliant account of a fundamental subject
By Louis Ryan
The development of quantum physics through the 20th century is one of the great adventures of science, and here at last is a book aimed at the layperson which clearly explains its key concepts, while situating the scientific development in its broader setting. The result is a challenging and enthralling read.
Quantum is appropriately sub-titled, Einstein, Bohr and the Great Debate about the Nature of Reality. The long theoretical duel between these two giants of modern physics is a recurring theme of the book, but the story starts before them with the build-up to the discovery of Planck's constant at the turn of the century, and continues beyond their deaths (in 1955 and 1962 respectively) to take in Bell's Theorem and Everett's "many worlds" interpretation. Along the way we meet other great physicists such as Rutherford, Heisenberg, Pauli, Schrödinger, Dirac and Bohm.
One might suspect that a book of such scope would be in danger of being overcrowded with theories and theorists, yet Kumar rises to the challenge, displaying a novelist's sense of pacing allied with an impressive scientific clarity and succinctness. Clearly he has taken to heart the famous injunction attributed to Einstein to "make it as simple as possible, but no simpler!" He also strikes a judicious balance between scientific explanation and human context. This provided for me a welcome alternation between the physics and the lives of the physicists, with each stimulating an interest in the other.
What is so powerful and inspiring about this book is the way it conveys the passion for truth of those great pioneers. No doubt ego played its part as well, they would hardly have been human otherwise, but it is always secondary to the great quest to fathom the nature of sub-atomic reality. Characteristic of this passion is the anecdote of Bohr and Einstein on their first meeting in Copenhagen, straightaway so engrossed in debate that they repeatedly miss their bus-stop. Kumar evidently resonates to this passion, and conveys it vividly in his narrative. Here is an extract from his account of Bohr's first meeting with Schrödinger, one of Einstein's key allies in the great debate:
"After the exchange of pleasantries, battle began almost at once, and according to Heisenberg, `continued daily from early morning until late at night'... During one discussion Schrödinger called `the whole idea of quantum jumps a sheer fantasy'. `But it does not prove there are no quantum jumps,' Bohr countered. All it proved, he continued, was that `we cannot imagine them'. Emotions soon ran high... Schrödinger finally snapped. `If all this damned quantum jumping were really here to stay, I should be sorry I ever got involved with quantum theory.' `But the rest of us are extremely grateful that you did,' Bohr replied, `your wave mechanics has contributed so much to mathematical clarity and simplicity that it represents a gigantic advance over all previous forms of quantum mechanics.'
"After a few days of these relentless discussions, Schrödinger fell ill and took to his bed. Even as his wife did all she could to nurse their house-guest, Bohr sat on the edge of the bed and continued the argument. `But surely Schrödinger, you must see...' He did see, but only through the glasses he had long worn, and he was not about to change them for ones prescribed by Bohr."
This book is a brilliant and compelling account of the genesis of quantum physics, but it is more than that. In the midst of today's pervasive cynicism and disorientation, it is an inspiring reminder of what the human spirit is capable of when it devotes itself passionately to the highest aim, that of understanding the truth of our reality.
100 of 106 people found the following review helpful.
The entanglement of classical and quantum realities
By Rama Rao
The great Einstein-Bohr debate about physical reality is interesting not only to physicists, but also to great many readers interested in understanding the nature. This discussion between Bohr and Einstein over the interpretation of quantum theory began in 1927 at the fifth Solvay Conference. The debate over the ability of quantum theory to describe nature was fueled by many leading physicists of the time, some of whom directly contributed to the development of quantum physics, but later found themselves arguing against the theory they helped to create. Notable examples include Erwin Schrodinger, Paul Dirac, and Max Planck; the latter two did not actively participate in challenging the quantum reality. Bohr and Einstein spent many years intensely debating the nature of reality, and their discussions are known for very famous Einstein's comments such as; "God does not play dice,' or "God is slick, but he ain't mean," and Bohr's response was "don't bring God into this (discussion of quantum physics)." Bohr argued vigorously against both deterministic and realistic world, but Einstein was equally adamant to defend these two physical and philosophical concepts. Deterministic philosophy was spurred by Newtonian mechanics; if we know a system and its physical properties (size, color, or position) at one point in time, then at some point in future we can predict the system based on these physical properties. Bohr argued that complete knowledge of the present can result only in a description of what the future most probably will be like, but there is no such thing as certainty in quantum world. This thought is mystified by what is commonly called Copenhagen interpretation, and its strong proponents were Niels Bohr, Werner Heisenberg, and Max Born. Classical reality envisioned by Einstein was supported to a certain level by Schrödinger. Recent historical research shows that Paul Dirac had his own doubts about Copenhagen school of thought (1), and Max Planck, the founding father of quantum physics, lived until 1947 did not participate directly in Einstein-Bohr debate because of his own insecurities about quantum reality. When experimental test for Bell's inequality was conducted by Alain Aspect and others, many thought that Einstein was definitely wrong, but recent advances say, not so fast. Physicist Roger Penrose and many others believe that quantum physics is an incomplete theory (2). Few weeks ago when Large Hadron Collider (LHC) conducted test runs, Stephen Hawking expressed pessimism of finding Higgs Boson in LHC experiments by stating that "I think it will be much more exciting if we don't find the Higgs. That will show something is wrong, and we need to think again. I have a bet of 100 dollars that we won't find the Higgs." In a poll conducted in 1999 at Cambridge University, 55% of physicists polled for none of the existing quantum interpretations are right. This shows that not everything is settled in quantum physics.
History of quantum physics is the best example to understand how scientists work. Their collective efforts to understand the universe we live in through publications, conferences, discussions correspondence and collaborative efforts are essential to scientific advancement. The author describes these things well in the book, but he falls short in certain areas; his current work uses previously published works of Max Jammer (3), Jagdish Mehra and Helmut Rechenberg (4) as his few sources of information, but he could have researched a little more by talking to people who were directly associated with Einstein or Bohr. In a recent book by Louisa Gilder (5), after interviewing a colleague of Boris Podolsky, she reported that Rosen or Podolsky never asked Einstein for his permission when they published the classic Einstein, Podolsky and Rosen paper, 'Can Quantum Mechanical Description of Physical Reality Be Considered Complete." It is also stated elsewhere that Einstein never thought this was going to be a paper; the ideas came out during informal discussions (6). The author discusses the results of crucial experiments such as tests of Bell's theorem, and other work that may have lead to confusions or mistakes.
Many who are familiar with the history of quantum physics think that even though Einstein is unquestionably the best scientist mankind has ever seen but they also believe that he was grumpy old man who did not appreciate new and novel ideas in physics. This is certainly not true according to physicists who knew him. He helped Max Planck in the development of early ideas such as quantized energy levels in quantum physics. Einstein was not against new ideas such as the probabilistic or statistical interpretation of quantum mechanics, but the denial of an independent reality bothered him immensely. This lead to another famous quote from Einstein: "I think that a particle must have a separate reality independent of the measurements. That is an electron has spin, location and so forth even when it is not being measured. I like to think that the moon is there even if I am not looking at it." The author resurrects these ideals of Einstein hastily when he discusses experimental tests of Bell's theorem. He concludes that Einstein's doubts about the completeness of quantum mechanics are vindicated.
1. Alisa Bokulich, Paul Dirac and the Einstein-Bohr Debate. Perspectives on Science 2008, vol. 16, no. 1, pages 103-114.
2. Spirituality and the Nature of Reality - A discussion between Roger Penrose and T. D. Singh, Published by Bhaktivedanta Institute, 2007 (ISBN: 8190136976)
3. The conceptual development of quantum mechanics (International series in pure and applied physics)
4. The Historical Development of Quantum Theory. 7 book set. Vol.1, Parts 1 and 2. V.2, V.3, V.4, and V.5, Parts 1 and 2
5.The Age of Entanglement: When Quantum Physics Was Reborn
6. Schrodinger's Kittens and the Search for Reality: Solving the Quantum Mysteries Tag: Author of In Search of Schrod. Cat
7. Schrödinger: Life and Thought
8. Einstein, Bohr and the Quantum Dilemma: From Quantum Theory to Quantum Information
9. SPOOKY PHYSICS: A Brief Introduction to the Einstein-Bohr Debate (Neural Library)
10. When champions meet: Rethinking the Bohr-Einstein debate [An article from: Studies in History and Philosophy of Modern Physics]
11. Uncertainty: Einstein, Heisenberg, Bohr, and the Struggle for the Soul of Science
54 of 57 people found the following review helpful.
Great read
By V Drucker
Kumar's book on the history of early twentieth century physics and atomic theory skips from page to page, fleshing out scientific expanations with vivid descriptions of the key protagonists. It is a real skill to make sophisticated scientific theories accessible to the lay person, but Kumar's use of metaphor helps bring the most intangible concepts to life. This is a modern classic, but more important, a really fun read.
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