Relativity

Rating:
Summary: Historically useful, but an useless introduction
Review: As an introduction to the theory of relativity this book fails hilariously. However, as a historical reference of how it was developed this book is very important and shows that the theory of relativity was not a magic idea from Einstein's mind, but a theory developed during years by many physicsits as George FitzGerald, Hendrik Lorentz, Henri Poincare, H. Minkowski, Marcel Grossman, David Hilbert and others. Compared to other books that explains the theory of relativity, such as Joseph Schwartz' "Einstein for beginners", this one is really difficult to understand (not impossible of course, however difficult). The deduction of Lorentz' transformation in the appendix is also very confusing compared to Schwartz. Well, this book is a bit old compared to Schwartz' book, thus it is normal to find out that the way Eistein expose the theory is hard compared to a more recent book. Also if you are an Einstein admire this book is nice to have a deeper view of what he thinks of the development of the theory.

Rating:
Summary: mastermind at work
Review: 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.

Rating:
Summary: A Scientific Gem From the World's Greatest Genius
Review: This book is truly a scientific gem. Not only did the brilliant Einstein envision the theory of relativity, but he also felt compelled to inform non-scientists by writing this "less" technical explanation of his theory. The book's section on Special Relativity is not too difficult to grasp. However, having some basic understanding of algebra and classical mechanics is helpful. On the other hand, the section on General Relativity is quite profound, requiring the reader to imagine new concepts of space and time that are alien to one's sense of reality. Indeed, I had to read this section several times and I'm still not sure if I completely understand it. However, this is more of a function of my imagination skills rather than Einstein's literary abilities. For he uses an abundance of familiar terms and analogies to simplify the understanding of some of the more "unusual" implications of General Relativity. I would not recommend this book to someone averse to technical subjects. However, I do recommend it to those wishing to learn the basics of relativity theory.

Rating:
Summary: A Masterpiece
Review: This book, written by Albert Einstein, is about the concept that changed our approach to physics and to the universe. This book requires a lot from a reader, in which the reader will probably have to reread passages all over again to grasp the math behind this theory. The math isn't difficult, it's understanding how it leads to the theory that requires a lot of thinking. I would recommend this book to anyone interested in the theory of relativity from Einstein's approach. However the reader should have a minimum of understanding of the theory before attempting to read this book.

Rating:
Summary: Straight from the horse's mouth
Review: What better person to here about relativity than Einstein himself? This is a great book for anyone interested in relativity. I do have one problem with this book--it's a crappy translation, even taking into account the fact that it was written in the dialect of Great Britain. The language is too lugubrious for my taste.