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Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension (Anglais) Relié – 22 septembre 1994

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--Ce texte fait référence à l'édition Broché.
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Revue de presse

beautifully written, making difficult scientific ideas seem accessible, almost easy. (Danah Zohar, Independent) --Ce texte fait référence à l'édition Broché .

Présentation de l'éditeur

The first book-length exploration of the most exciting development in modern physics, the theory of 10-dimensional space. The theory of hyperspace, which Michio Kaku pioneered, may be the leading candidate for the Theory of Everything that Einstein spent the remaining years of his life searching for. --Ce texte fait référence à l'édition Broché .

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Format: Broché Achat vérifié
LE livre qui a inspiré le groupe musical MUSE. Livre en anglais mais pas trop difficile à lire si on a un niveau "moyen/sup"
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Commentaires client les plus utiles sur Amazon.com (beta) (Peut contenir des commentaires issus du programme Early Reviewer Rewards)

Amazon.com: 4.5 étoiles sur 5 334 commentaires
5 internautes sur 5 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Everything is Simpler in 10 Dimensions 18 août 2016
Par Thomas Wikman - Publié sur Amazon.com
Format: Broché Achat vérifié
I’ve read a few of Michio Kaku’s books and I’ve really enjoyed them, which is why I decided to read this somewhat “older” book. Dr. Kaku is an excellent popularizer with a lucid and down to earth writing style and he has a modest and open minded way of approaching a subject. As the book is a little bit outdated at this point and because I have a couple of objections I rated it four stars, but it is a very “mind opening” book that I strongly recommend.

The book takes us on a journey through the discovery-history of higher dimensions and the quest to unify the laws of physics. It introduces us to Riemannian geometry and explains how forces can be viewed as consequences of geometry in higher dimensions (Hyperspace) a concept that was later used in the General Theory of Relativity, Kaluza-Klein theory as well superstring theory. The laws of physics become more unified, simpler and more beautiful if you add a few dimensions. He convincingly makes the case that you can discover the secrets of the Universe by peering into Hyperspace. The book also discusses topics such as the history of modern physics, relativity, quantum physics, the standard model, GUTs, super gravity, black holes, the big bang, parallel universes, etc. Towards the end of the book he is discussing the fate of the Universe and the fate of human civilization, and the threats we face from the potential of nuclear war, global warming, and possible collisions with asteroids.

The book does not go into depth on any of the multiple topics discussed. It is not that kind of a book. However, on some minor topics I found it to be misleading, particularly on the topics of parallel universes and “Schrödinger’s cat”. For example, he states on page 261 “To Schrödinger, the idea of thinking about cats that are neither dead nor alive was the height of absurdity, yet nevertheless the experimental confirmation of quantum mechanics forces us to this conclusion.” The last part is simply incorrect. This is an interpretation issue, not an experimental issue, and it is sorted out in different ways by more modern interpretations of quantum physics such as the ensemble interpretation and the relational interpretation of quantum physics, or via "decoherence". As for me, when I as a young student taking classes in Quantum Physics at the end of the 1980’s I adopted what was essentially a pre-cursor to the relational interpretation because of what I noticed when I tried to perform Galileo transforms on quantum wave functions. There’s no real contradiction and there are no multiple worlds (universes) needed to explain this. I’ve seen other popularizers confuse people the same way, and I think it just turns people off.

Anyway, other than the above minor complaint, I think this was a very enjoyable and interesting book that I am very glad that I’ve read.
1 internautes sur 1 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Couldn't I have given this three and a half stars? 18 janvier 2015
Par Curious - Publié sur Amazon.com
Format: Broché Achat vérifié
It is hard to criticize much of the work which is conversational and lucid.
And yet, there are substantial problems here.
The author, a respected major scientist, is far from neutral here and is rather dismissive of the fact that there is no available method by which to prove the String Theory which he devotes a good part of the book to defending. It is true that the presumed 10 dimension model supports many different areas within Physics. Yet, consistency in giving the correct answer is insufficient to prove a theory. Newton's Laws worked well until Maxwell and later Einstein questioned the Principia's absolute standing. The Universe of Ptolmey in most ways, or the Geometry of Euclid were absolutes of their time. With few easy contenders, String Theory is definitely worthwhile, but the author has not chosen to show any scruples about it.
Whether from the standpoint of increasing the interst of a segment of readers or not, the author also choses to digress to references to Star Trek and other Science Fiction a bit more than this reviewer feels to have been relevant. Some of the references may be seen as useful and others verge on fantasy, if not crossing well beyond the boundary.
Scenarios of differing types of cultures, from our present 0 to I, II or III seem generally a bit optimistic in speculative nature at the least. The Earth and Universe might be doomed. Perhaps this is even in the purview of Physics, but projected escape measures would seem to reflect poor editing on top of some manic flight of fancy. At one point a human culture is perhaps to move through a wormhole to a fresh Universe.
[I am sure that we can mess up the Universe there much less than we have here!]
What I cannot fathom is whether we can transfer enough animal and plant matter with us to make some feasible ecology. What is it that we are to eat? What is it that we are to do for fabrics, for pets, for handling wastes. Perhaps as a type II or Type III civilization we have passed the need for pets or clothing or provision of Oxygen. Perhaps we can use the energy of a local Black hole emissions or some other astral energy, but what of petrochemicals for clothing materials (synthetics) or plastics. Are we to assume that culture can survive on a few Billion 'ready to eat' meals that have been brought along, if we have no ability to grow sufficient crops or herds of animals? Are we to live long as cannibals instead? And are we as such an advanced culture to thrive as a single species? Transporting a Biome to a different planet or Universe would entail logistics that have not really been addressed with any thought here or elsewhere and discussion of such fancies is so far 'over the top' as to have produced a cackle or two from me in the reading of this book.
2 internautes sur 2 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Gateway to the enchanted land of science but caution! 27 novembre 2013
Par sm535 - Publié sur Amazon.com
Format: Broché Achat vérifié
For whatever reason, science becomes a mystery after you graduate from high school (unless you become a science major) and even stranger, its mysteriousness grows as you go further and further away from your high school age. But I bet many of us stay curious about what stays behind that shroud of mystery throughout our lives and often hear the call but never find a way to respond to it.

If you are one such person, this book is for you. Make no mistake - you will not be able to understand the mystery behind ten dimensions and string theory any better than what you do today even after reading the book, but it will certainly help you to understand what those mysteries are.

This book lays the foundation of what is generally called the String theory that explains everything in the universe with one single proposition. Whether the explanation or the theory is correct or not is not the subject matter of this book. It simply assumes it is correct. However, that is not really important. What is important is that how the book explains why it is necessary to have a single theory to advance our knowledge of this universe.

And this it does without using any mathematical equation at all, except E = mc^2 (which it also does not attempt to prove). There is no other mathematical proof of any kind in this book, paving the way for general readers to a theory that is well known to be difficult even among scientists.

In retrospect after reading this book for few times, I think that is in a way the best strength and the worst weakness of this book. It gives you the story but not the details of a scientific theory. You can not learn further based on the things that you learn here - you need to start from the beginning if you decide to learn the String theory in a scientific way.

Or in other words, the book aptly reveals to you where the call comes from behind that mystery shroud, but it does not tell you why.
13 internautes sur 13 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Great, if dated, book on QM and other esoteric concepts 22 mai 2001
Par jane arc - Publié sur Amazon.com
Format: Broché Achat vérifié
I guess I would have liked this book a lot more if I had read it before Brian Greene's excellent book, _The Elegant Universe_.
Michio Kaku has a rare talent for being able to explain very complex and abstract systems and situations in terms that people who have not had a graduate level college course in the subject can understand. He thus moves quite deftly from subject to subject, taking the time to explain things in terms that any reader should be able to understand.
However, for a book on Science, Kaku gets caught up in discussions about things that did not contribute much to the text (although a discussion of God does not necessarily _detract_ from the book, it isnt what I was looking for).
Kaku has written another book, _Visions_, which covers many of the subjects elaborated on in this book. I would suggest readers get the Visions book, and also pick up a copy of the much more modern and somewhat higher-brow book by Brian Greene, _The Elegant Universe_.
Four stars because it is a good book, five if it were contemporary.
5.0 étoiles sur 5 Amazing, mindblowing, actually very readable 21 juin 2016
Par Christopher Rodesch - Publié sur Amazon.com
Format: Broché Achat vérifié
Amazingly well written. I had not read any of Kakus work before and was expecting a much more difficult to follow dry experience. Its a real genius that can convey such difficult subjects in a way that regular people can understand and appreciate. I was skeptical about a lot of this theory going into reading this and now can appreciate some of the beauty of hard core physics. You won't be calculating any rocket trajectories in the margins but you will be able to understand why physics is so fascinating and maybe even convey the same enthusiasm that he has to someone you know. I will be reading his other books soon.
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