- Taschenbuch: 158 Seiten
- Verlag: B&T; Auflage: New Ed (1. Oktober 1988)
- Sprache: Englisch
- ISBN-10: 0691024170
- ISBN-13: 978-0691024172
- Größe und/oder Gewicht: 21,3 x 13,5 x 1 cm
- Durchschnittliche Kundenbewertung: 5.0 von 5 Sternen Alle Rezensionen anzeigen (20 Kundenrezensionen)
- Amazon Bestseller-Rang: Nr. 393.131 in Englische Bücher (Siehe Top 100 in Englische Bücher)
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From Library Journal
This volume, constituting the printed version of the first of the Alix G. Mautner Memorial Lectures to be given periodically at UCLA, certainly gets this new series off to a flying start. World-renowned for the liveliness and creativity of his physical insights, Caltech physicist Feynman provides another of his tours de force as he clearly explains the arcane workings of quantum electrodynamics, a theory which Feynman himself helped to establish. Starting with such familiar phenomena as the reflection and refraction of light, Feynman goes on to describe in detail the interactions between electrons and light. Although the text requires more concentration to grasp than most science popularizations, things never get out of hand. A good choice for collections serving informed readers. Thomas E. Margrave, formerly with Physics & Astronomy Dept., Univ. of Montana, Missoula
Copyright 1985 Reed Business Information, Inc. -- Dieser Text bezieht sich auf eine vergriffene oder nicht verfügbare Ausgabe dieses Titels.
Copyright 1985 Reed Business Information, Inc. -- Dieser Text bezieht sich auf eine vergriffene oder nicht verfügbare Ausgabe dieses Titels.
Synopsis
Famous the world over for the creative brilliance of his insights into the physical world, Nobel Prize-winning physicist Richard Feynman also possessed an extraordinary talent for explaining difficult concepts to the nonscientist. "QED" - the edited version of four lectures on quantum electrodynamics that Feynman gave to the general public at UCLA as part of the Alix G. Mautner Memorial Lecture series - is perhaps the best example of his ability to communicate both the substance and the spirit of science to the layperson. The focus, as the title suggests, is quantum electrodynamics (QED), the part of the quantum theory of fields that describes the interactions of the quanta of the electromagnetic field-light, X rays, gamma rays - with matter and those of charged particles with one another. By extending the formalism developed by Dirac in 1933, which related quantum and classical descriptions of the motion of particles, Feynman revolutionized the quantum mechanical understanding of the nature of particles and waves.
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2 von 2 Kunden fanden die folgende Rezension hilfreich
Format:Taschenbuch
Enigma - this term best describes QED, the notoriously non-intuitive basis of fundamental physics. But 'enigma" equally applies to this book, QED. Why is it so popular? Four lectures on quantum electrodynamics? Why would anyone, other than a physicist, rave about such a book?
Feynman cautions the audience that they may not understand what he will be saying. Not because of technical difficulty, but because they may be unable to believe it, unable to accept what he is saying. "The theory of quantum electrodynamics describes Nature as absurd from the point of view of common sense. And it fully agrees with experiment. So I hope you can accept Nature as She is - absurd."
I long had this problem. I wanted to understand why, in addition to how nature works. I wanted some philosophical understanding, some underlying meaning. I have come to accept that the fundamental laws (rules, behavior, whatever) of physics are not intuitive, but are incomprehensible in terms of common sense.
To appreciate Feynman's QED lectures, you must have patience, some commitment (its not really difficult), but more than anything else you need a willingness to set aside disbelief and simply listen to a physicist talk about quantum electrodynamics. A willingness to accept that nature refuses to be understood. Analyzed, dissected, mathematically described (in a probabilistic sense), but not fundamentally understood. QED.
I am largely unsatisfied by books for laymen on quantum physics, string theory, cosmology, and the like. My background includes some physics and I find that a bit of mathematics is more helpful than a great many analogies, no matter how cleverly constructed. QED should have been disappointing. But I gave it five stars.
Feynman did not rely on analogies. He talks physics and experiments. Feynman had a wonderful clarity of thought, an ability to explain advanced physics, and all with a sense of humor. No math symbols, no complex numbers, no matrices, no wave mechanics, no advanced probability analysis - just simple addition of little arrows that shrink and turn.
Feynman was unpredictable. He saw the world in unexpected ways. In a footnote he mentions that Heisenberg's uncertainty principle is really no longer a necessary construct. "If you can get rid of all the old-fashioned ideas and instead use the ideas that I am explaining in these lectures - adding arrows for all the ways an event can happen - there is no need for an uncertainty principle." Heisenberg relegated to a footnote!
The casual reader may find some short sections a bit strenuous, particularly some of the more involved manipulations of arrows, but stay with it. As Feynman points out in the preface, these lectures represent physics accurately without distortions for simplicity. Nothing would need to be unlearned if you later majored in physics. Think about it. QED may lead you down a path heretofore not taken.
1 von 1 Kunden fanden die folgende Rezension hilfreich
Format:Taschenbuch
This book is an excellent discussion of the form and meaning of Quantum Electrodynamics. The book is written for the intelligent non-physicist and explains QED very clearly, covering both the incredible accuracy (e.g. computations good to 10+ decimal places) and the strange concepts (e.g. that a particle travelling from point A to point B takes all possible paths simultaneously, in some sense) that make up this fundamental area of physics.
As usual, Feynman is lucid, entertaining and interesting. A wonderful book.
Format:Taschenbuch
As a 3rd year undergrad physics major at Caltech, I sometimes got lost in the forest of mathematical equations that the professors threw at me. This is the book that helped me understand it intuitively. Feynman makes it seem so easy, and says so much with those simple examples he gives. I've never read a science book that made a difficult subject like this seem so easy. Only Feynman does it like that. The reader doesn't even have to know how to square a number, and yet Feynman manages to explain how to use the method of stationary phase in path integrals. Yeow!
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A classic in the physics community!
QED. It's not Quod Erat Demonstrandum; no, it's not even Quickly Ends Dandruff. Then, what is it? Quantum ElectroDynamics. Lesen Sie weiter...
Veröffentlicht am 8. Juni 2000 von "pythia_the_original"
Feynman's Conceptual Delivery is Brilliant
What differentiates Feynman from other eminent physicists of the 20th Century is his uncanny ability to communicate abstract and complicated theories of physics into totally... Lesen Sie weiter...
Veröffentlicht am 10. Mai 2000 von hermione31
Feynman, a physicist for the ages
Feynman treates physics in the proper manner. He takes all of the jargon out and makes very complicated arguements available to a more general reader.
Veröffentlicht am 30. November 1999 von "theevildwarf"
Pfadintegrale anschaulich erklärt
Die meisten Autoren kapitulieren vor dem Anspruch, die theoretische Physik allgemeinverstaendlich zu praesentieren. Lesen Sie weiter...
Am 26. November 1999 veröffentlicht
From a students point-of-view, it is an incredible book.
I am studying A-Level Physics, and find this book truly inspirational. Though not on the syllabus, QED certainly should be An incredible man, and an incredible book.
Am 12. September 1999 veröffentlicht
the best little book on quantum theory you'll ever read
I'm halfway through the book, it's unbelievably lucid, witty, light-hearted, and modest, and explains QED, and actually quantum physics through the phenomenon of light, better than... Lesen Sie weiter...
Am 3. August 1999 veröffentlicht
genuis, pure genuis
Feynman's version of QED (which he helped develop) is the most clever and lucid way of explaining QED phenomena. I can't praise this book enought. Lesen Sie weiter...
Veröffentlicht am 23. Juli 1999 von wes@jhu.edu
qed for the un-experienced to the doctors
i am a big physics fan, i love it. this book really interested me, though i give it four stars because though it was written with amazing wit and understanding, it is not the best... Lesen Sie weiter...
Am 25. Juni 1999 veröffentlicht
Fascinating!
In my opinion, a scientist who gives you the oppurtunity to delve into his mind and understand what he understands is a privilege both to the reader and to the cause of science. Lesen Sie weiter...
Am 20. Juni 1999 veröffentlicht
a fantastic, stimulating read
This is the kind of book that makes you want to go back to school and actually pay attention. It was fascinating and stimulating. Lesen Sie weiter...
Am 30. November 1998 veröffentlicht
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