Customer Rating: 
Summary: a pleasure to read
Comment: Many years after its initial release, this book is still a great pleasure to read. Written in a conversational tone, much of it is probably readily understandable to most readers. However, some parts of it, especially toward the end, aren't exactly simple by any means. Any curious reader, even if not particularly interested in physics or astronomy, will find this little book to be a gem. An extra treat is a few pages at the end describing prominent events from the lives of Einstein, Galileo, and Newton. Highly recommended read. Author of Adjust Your Brain: A Practical Theory for Maximizing Mental Health.
Customer Rating:
Summary: Bumpy RIDE!!!!!!!
Comment: Hawkins may provide amazing insight into Astrophysics and have a Brillant Mind. However, he does a medicore job in explaining things and his writting style is often "choppy" and hard to read. He just does not expand on things well. The concepts in the book can be hard to grasp and the writting can make it very hard to stay focus.
I find other authors to be a much better selection like Neil Tyson with equal insight for the layman.
The book does provide alot of amazing insight into things like Black Holes, Time Travel, Entropy, Relativity and other cosmic delights.
Customer Rating:
Summary: An excellent overview of modern physics.
Comment: If you can find it, I recommend this version over the original "Brief History of Time". This version was written about 8 years later and as such incorporates much that has been learned over the intervening years. In addition, the illustrations greatly enhance the text. They are not only a joy to look at, but actually make the book more understandable. The original work has been characterized as one of the most popular, but unread books of all time. Much of the unread characterization stems from the fact that this is a difficult book unless one has had some minimal understanding of physics. Minimal is, however, the appropriate word as one need not be a physicist to get a lot from this book, but one should not be put off by a discussion of quarks, gluons, gravitons, wormholes or string theory.
The first chapters deal with the classical view of physics and the universe. This is followed by discussions of the theory of relativity and quantum mechanics. It is important to note that these are not rigorous discussions, indeed no mathematics is used and the discussion is entirely devoted to the basic ideas and implications of these theories. At least one reviewer has criticized the fact that these subjects have not been developed in any detail, but rather are just expounded. I think that this misses the point. This is not a physics text; rather it tries (I think very successfully) to show the reader the beauty and implications of modern physics. I found the discussion of modern particle physics to be one of the best very elementary treatments that I have ever read. Next he discusses black holes and the origin of the universe. Again, I found his discussion of black holes to be one of the best very elementary treatments that I have ever read. The last chapters on wormholes, time travel and grand unified theories are more speculative than the preceding chapters, but the reader is clearly forewarned that this is the case. (The most speculative, and in my opinion least clear chapter, was the one on wormholes and time travel, which was not in the original version of "A brief History of Time".)
I liked this book a lot and do not agree with those who found it to be unclear and very difficult to follow, but I can see how those with no physics background at all would find it too difficult to finish. This version has the virtue of pictures which make following Hawking's text a bit easier to follow and as he states in the forward "Even if you only look at the pictures and their captions you should get some idea of what is going on."
Customer Rating:
Summary: This book is a fake!
Comment: As a physicist I am flabbergasted and slightly depressed by the success of this book. First of all this book presents as if they were equally certain some pieces of orthodox science together with some of the author's dubious speculations. The lay reader is not told which are which. Secondly, the author obviously has no knowledge of the actual history of physics and yet he shamelessly "describes" it to the reader.
Hawking seems to have gathered together all the bad cliches about various physical issues and has taken out all the valuable ideas. He explains nothing, he just asserts that "we physicists know that..., we physicists have demonstrated that...". I cannot see how anyone can actually learn anything about physics from this book, about why we know what we know. And yet, judging from the amount of praise this book receives, it seems that quite a lot of people have fallen under the spell that they have been allowed access to some secret. They haven't and I find this trickery immoral.
Quantum physics and astrophysics are really interesting. They don't deserve to be thrashed in this unashamed manner. If you want to learn something about physics, there are other books which do a much better job, for example Asimov's Atom: Journey Across the Subatomic Cosmos.
Customer Rating:
Summary: Author - a true genius
Comment: Stephen Hawking is a true genius. Although I don't understand everything he writes, all-in-all this book gives one the understanding of how wonderfully made the universe is.
Summary: a pleasure to read
Comment: Many years after its initial release, this book is still a great pleasure to read. Written in a conversational tone, much of it is probably readily understandable to most readers. However, some parts of it, especially toward the end, aren't exactly simple by any means. Any curious reader, even if not particularly interested in physics or astronomy, will find this little book to be a gem. An extra treat is a few pages at the end describing prominent events from the lives of Einstein, Galileo, and Newton. Highly recommended read. Author of Adjust Your Brain: A Practical Theory for Maximizing Mental Health.
Customer Rating:
Summary: Bumpy RIDE!!!!!!!
Comment: Hawkins may provide amazing insight into Astrophysics and have a Brillant Mind. However, he does a medicore job in explaining things and his writting style is often "choppy" and hard to read. He just does not expand on things well. The concepts in the book can be hard to grasp and the writting can make it very hard to stay focus.
I find other authors to be a much better selection like Neil Tyson with equal insight for the layman.
The book does provide alot of amazing insight into things like Black Holes, Time Travel, Entropy, Relativity and other cosmic delights.
Customer Rating:
Summary: An excellent overview of modern physics.
Comment: If you can find it, I recommend this version over the original "Brief History of Time". This version was written about 8 years later and as such incorporates much that has been learned over the intervening years. In addition, the illustrations greatly enhance the text. They are not only a joy to look at, but actually make the book more understandable. The original work has been characterized as one of the most popular, but unread books of all time. Much of the unread characterization stems from the fact that this is a difficult book unless one has had some minimal understanding of physics. Minimal is, however, the appropriate word as one need not be a physicist to get a lot from this book, but one should not be put off by a discussion of quarks, gluons, gravitons, wormholes or string theory.
The first chapters deal with the classical view of physics and the universe. This is followed by discussions of the theory of relativity and quantum mechanics. It is important to note that these are not rigorous discussions, indeed no mathematics is used and the discussion is entirely devoted to the basic ideas and implications of these theories. At least one reviewer has criticized the fact that these subjects have not been developed in any detail, but rather are just expounded. I think that this misses the point. This is not a physics text; rather it tries (I think very successfully) to show the reader the beauty and implications of modern physics. I found the discussion of modern particle physics to be one of the best very elementary treatments that I have ever read. Next he discusses black holes and the origin of the universe. Again, I found his discussion of black holes to be one of the best very elementary treatments that I have ever read. The last chapters on wormholes, time travel and grand unified theories are more speculative than the preceding chapters, but the reader is clearly forewarned that this is the case. (The most speculative, and in my opinion least clear chapter, was the one on wormholes and time travel, which was not in the original version of "A brief History of Time".)
I liked this book a lot and do not agree with those who found it to be unclear and very difficult to follow, but I can see how those with no physics background at all would find it too difficult to finish. This version has the virtue of pictures which make following Hawking's text a bit easier to follow and as he states in the forward "Even if you only look at the pictures and their captions you should get some idea of what is going on."
Customer Rating:
Summary: This book is a fake!
Comment: As a physicist I am flabbergasted and slightly depressed by the success of this book. First of all this book presents as if they were equally certain some pieces of orthodox science together with some of the author's dubious speculations. The lay reader is not told which are which. Secondly, the author obviously has no knowledge of the actual history of physics and yet he shamelessly "describes" it to the reader.
Hawking seems to have gathered together all the bad cliches about various physical issues and has taken out all the valuable ideas. He explains nothing, he just asserts that "we physicists know that..., we physicists have demonstrated that...". I cannot see how anyone can actually learn anything about physics from this book, about why we know what we know. And yet, judging from the amount of praise this book receives, it seems that quite a lot of people have fallen under the spell that they have been allowed access to some secret. They haven't and I find this trickery immoral.
Quantum physics and astrophysics are really interesting. They don't deserve to be thrashed in this unashamed manner. If you want to learn something about physics, there are other books which do a much better job, for example Asimov's Atom: Journey Across the Subatomic Cosmos.
Customer Rating:
Summary: Author - a true genius
Comment: Stephen Hawking is a true genius. Although I don't understand everything he writes, all-in-all this book gives one the understanding of how wonderfully made the universe is.