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86 of 87 people found the following review helpful:
5.0 out of 5 stars
Do you want to learn about Modern Physics? Begin here!, March 9, 2000
There is no doubt that Albert Einstein has been one of the most brilliant minds of the past century. His major contribution to science was the special and the general theory of relativity, which gave a new dimension to that we call today "Modern Physics". Many people feel frustrated because when they try to understand relativity, they find some authors that expound in their books a complex arrangement of equations referring to the mathematical part of the theory, namely, the books are accessible for people with certain levels of knowledge (that is the case of engineers, physicists, mathematicians, among others). Nevertheless, perceiving and anticipating this situation, Albert Einstein wrote this book (more than fifty years ago) whit the purpose of exposing the special and the general theory of relativity in such a way that anyone can understand it. I this sense, I think, Einstein succeeded because despite the shortness of the book, the same covers the most important aspects of relativity in a clear and concise form. Moreover, the book has appendixes where the author makes reference to some interesting subjects like the problem of space and relativity, the experimental confirmation of the theory, to name a few. If you have decided to learn something about relativity, and you do not have vast knowledge in physics and mathematics, I sincerely recommend you this book. On the other hand, if you were a reader looking for more technical information (mathematical foundation of general relativity), I would choose the book "Gravitation" written by Misner, Wheeler y Thorne. This text represents an encyclopedia about general relativity.
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66 of 67 people found the following review helpful:
5.0 out of 5 stars
The words of the Master, December 24, 2001
This is the introduction to relativity written by Einstein. It is NOT the book which contains the original works, which is a very difficult book (just think that Planck had to ask for several clarifications before he understood Einstein's breakthrough paper). Here the great scientist set to himself the goal of explaining to the educated, but not specialized, man. Einstein was, of course, very deep. When he talked about any topic in physics, chances are that he went deeper than anyone else who thought about the same theme, for a comparable time span. Now, imagine relativity. When he wrote this book he had thought about this matter for several decades. Nobody reached this depth, then and afterwards. The fruits of his thought, like black-holes, are being proved true now, after so much time! So, the difference between this book and all other introductory books on relativity is proportional to the difference between Einstein himself and the other authors. You don't have to believe me: just read the excerpts! You'll not remain indifferent to the majesty of his ideas. Put yourself in the right mood: Einstein was a very simple man who was, in writing this book, sincerely interested in explaining his creation to you. Follow his path, read attentively, and, above all, think! The reward will be great.
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18 of 18 people found the following review helpful:
5.0 out of 5 stars
mastermind at work, June 20, 1999
By A Customer
The reviewer of April 13 from Moscow, Idaho says this is not the book to read unless you already understand the theory. Maybe fair enough. It was written when Einstein had achieved youthful fame, though, not in his dotage, if he had such a thing. It may be a little more difficult for the translation, but not much. Contrary to some reviewers, it is not that easy to follow, and if it seems like an easy read, you probably haven't understood it. There are many books written since where it is probably easier to learn about special relativity, to say nothing of the basic ideas of general relativity. But once you have started to get the hang of things, this book is a masterpiece of exposition! It allows one to follow Einstein's actual thought process in arriving at these theories -- pretty much by a process of pure thought -- more or less in the steps he probably took himself. There is not a word in the exposition that was not carefully thought out. So, learn the theory somewhere else and then read this book -- you'll understand the theory better for reading Einstein's book -- or read this book first, keep going back to it 'til it starts to make sense, and maybe consult some other, more "user-friendly" textbook at the same time. Einstein claims his book allows a lay reader with only high school math to understand relativity. To which a friend of mine replied "Yeah, if you have an IQ of 800". To which I say, have patience, keep thinking about it and going back to it.
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