How does a single electron pass through two slits at the same time? It must move discontinuously...

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	• The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory Brian Greene W. W. Norton & Company, 2003 - 464 pages average customer review:based on 502 reviews view larger image
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highly recommended

Excellent Book

Mr. Greene has found a way to share the important new concepts of Superstring and M theory with those of us without the necessary mathematical expertise to understand the language of his colleagues. It's a very readable, very thought provoking book that I highly recommend.

How does a single electron pass through two slits at the same time? It must move discontinuously...

Greene gave a very popular introduction of the mysterious quantum world. His H-Bar is an ingenious pun. However, his explanation of Feynman's path integral was wrong. Maybe he inherited from Hawking. The paths in Feynman's approach are purely quantum states, not classical continuous paths at all, as Greene depicted in his book. Nor did Feynman claim that his method implied such a bizarre picture.

However, a single electron does pass through two slits at the same time in the double-slit experiment. But how does it pass through two slits at the same time? Nobody knew. In fact, it seems very evident that the single electron can only pass through the two slits at the same time in a discontinuous way. Therefore, its motion may be not continuous but discontinuous. To our surprise, such discontinuous motion is imaginable and comprehensible. This intriguing idea has actually been lucidly expounded in a recent book Quantum Motion - [...]

Once we realize that motion is discontinuous and random in reality, we may finally understand the mysterious quantum world, where an electron can pass through two slits at the same time.

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Physics is fun.

I read the posted reviews and I must say not to be discouraged if you had trouble reading it. If you have seen the DVD for The Elegant Universe, you will see some physics professors from MIT or other famous universities admitting that they don't have a good handle of quantum mechanics. I have a PhD in electrical engineering and took quantum mechanics. It was the hardest course I have ever taken, but it's the course I still ponder the most. Learning is a life long process. Keep plugging and the reward is simply fun. If you find reading this book difficult, you may consider watching the DVD first and then read the book or back and forth. I watched the DVD at least five times and each time, I learned something new. I still have not finished reading the book even once. We need scientists like Brian Greene that can communicate science to the public. I wish some day I could buy a copy of this book and DVD for all public libraries in the US.

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Already a Classic, But Science Keeps Moving On...

This is simply a great book. My only concern is that as scientific discoveries continue, it will need revision. Hopefully, Brian will do just that. Especially upon completion of the Large Hadron Collider in Geneva, Switzerland. The DVD set of the same title is just as awesome as the book, however, I'd recommend you read the book AND see the series. It may help to work through some of the ideas as you read rather than have them all thrown at you in an hour and a half!

Excellent book

Read about third - trilling experience for new cosmologist and fresh insight on old things.

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