Rating: 
Summary: Abracadabra.
Review: If you're not yet convinced that there is a clear
link between modern physics and the Delphi Oracle,
this book will probably convince you.
The problem is that if you know what the author is
talking about, you really think it is nuts to
present it that way, and if you don't know, you won't
learn anything.
On the other hand, if you want to be on a Star Trek
trip, it is fun to read. But it has nothing to do
with physics.
Rating: 
Summary: Fascinating, informative & wide-ranging!
Review: This book was thoroughly enjoyable--I love Kaku's style of writing--he has a way of presenting complex ideas so that the non-scientist can comprehend and appreciate them without feeling "talked down to". I've been into Quantum Mechanics and Cosomology for a while now, and this book is a welcome addition to my library. Kaku manages to cover a wide variety of related material --I had to write down a list of all the items that piqued my interest, so that I could research them later: Reimann's Metric Tensor, symmetry breaking, CP violation, Edward Witten, Ramanujan theorems, Veneziano-Suzuki theory, the Yang-Mills field--so many subjects that it took hours of searching through the WWW--but it was ALL fascinating, and I have Michio Kaku to thank for it! I am no math whiz, so my research into these subjects has a limit (at least for the moment), but he presents the math gently and his style is not intimidating at all-- you can tell he very much wants to share this wondrous knowledge so everyone can taste the pleasure of understanding--HIGHLY recommended!
Rating:
Summary: Time machines and parallel universes!
Review: Kaku and his fellow theoretical physicists appear to have done what Einstein was unable to do in the last twenty years of his life. Einstein was looking for the Theory of Everything that would make quantum theory jive with his theories of the macro universe. A ten dimensional universe makes the mathematical formulas work. In Hyperspace, the laws of gravity and light merge. Light can be explained as vibrations (or strings) in the fifth dimension. Kaku uses graphics to illustrate the "logic" of a ten dimensional universe. In a two dimensional universe, or flatland as Kaku calls it, a figure is in jail. Escape is impossible. However, a three dimensional person can reach down and whisk the flatlander out of there into the third dimension. To a hypothetical jailer the flatlander appears to have disappeared. Kaku's string theory maintains that following the Big Bang the dimensions split off into the four we know of and the other six that are too small to see.
So then, what are the implications of a ten dimensional universe? According to Kaku, space can be stretched until it rips or tears, providing a tunnel through space and time. And, voila, we have time travel and access to parallel universes. Think this is foolish speculation? Not if the physicists at the California Institute of Technology have any credibility. They've considered building a time machine, consisting of a wormhole that connects the past with the future. Of course this would require an energy source far beyond our limitations, but all we have to do is look at the past two hundred years for a model. Isaac Newton gave us the laws governing machines, leading to the Industrial Revolution. James Clark Maxwell gave us the fundamental laws of the electromagnetic force, ushering in radio, the telephone, the computer, lasers. In the 1940s when the nuclear forces were tamed we were confronted with the atomic and hydrogen bombs. Any civilization that masters hyperspace theory will become lord of the universe.
Not only does Kaku simplify complicated science for the layman, but he also makes you feel optimistic about the future. Try Michio Kaku's new book VISIONS, in which he talks about conquering aging in the twenty-first century, DNA computers, and fusion engines that may take us to the stars. Not since Carl Sagan have I found a scientist this easy to read.
Rating: 
Summary: Why 10 and not 10.75 dimensions???
Review: Mr. Kaku would say that this is a fundamental fact resulting from his mathematical construction. Nothing else.
If someone have had some the smallest indication that there is at least one extra dimension, I would look at these virtual ideas as at something more sound. Meanwhile we should develop a more realistic approach affin with everyday reality. Unfortunately, some of advanced modern theories predict the possibility of extradimensions. It is worse for that theories and, of course, it makes us think that something might be wrong with the previous theories (Maxwell's, Einstein's etc). I do not say everything should wrong because of visible success of that theories in explaining most known phenomena. But we do not know if the explanation is the best one or if something lacks. Without that knowledge we should not develop so abstract mathematical theories, because the may have nothing common with the reality. Extra dimensions looks like a typical example of this absurd extrapolation of not fully confirmed modern theories.
It is better forget about Kaku and his extravagant ideas and come back to the REAL WORLD. It would be much more fruitful for our Civilization.
Rating:
Summary: It is not about physics at all
Review: It is a wonderful book to read about a virtual reality. It is also very good written not like Hawking`s History of Time. On the other hand, it is more about mathematics than about physics.
I believe that one can create as Leibnitz philosopher once said as many mathematical theories as you can which will be consistent and elegant but eventually have nothing to do with reallity. Kaku and other "leading physicists" working in other dimensions are so blind with their own ideas that do not even admit the possibility that their "scientific work" is only isotheric game. It is most likely lead to nothing but he is pushing to follow his (very possibly wrong treck), descarding other important alternatives. What about his words that the modern string theory is more the faith than science? I agree because its verification is so far from allmodern experimental facilities. It is a curious mathematical game but nothing else.
If Kaku and other "leading field physicists" knew that there several recent indications about incompleteness and inconsistency of classical Maxwell's electromagnetic theory than they would have a bit doubt on the completeness and overall correctness of Einsteins's relativity based exlusively on Maxwell's electrodynamics.
First of all, physics should have very sound consistent fundamental ground and after that go further. It is not the case. In a recent few years many honest physicists started thinking about reconstruction of Maxwell's electrodynamics. It just lead to the conclussion that there is something wrong with the notion of local field. It should be modified on its bases. Someone who does not believe that we can be on partially wrong track since Maxwell, can follow Kaku's and other string physicists and eventually lost their life for nothing...
Rating:
Summary: Hyperspace a residence for Beauty and Supersymmetry.
Review: In this superbly written book, Michio Kaku explains it all and "solves" it all by the theory of hyperspace. Basically, it explains the futility of unifying the basic forces of nature in the present concept of 4-D space-time. In fact Albert Einstein had to add the fourth temporal dimension of time to explain the field theory of gravity. Later Theodr Kaluza, while expressing Einstein's field equations in five dimensions came to startling result in which Maxwell's field equations of electro-magnetism was included along with field equations of gravity. So, just by addition of one dimension, two fundamental forces of nature were getting unified. Much later the 11-dimensional supergravity theory encompassed all the forces as well as matter in its expression giving hope of the ultimate theory in offing. It was eventually abandoned because the equations were nonrenormalizable (nonsensical results). Of course, the latest offering is the 10-dimensional superstring theory and its successor the 11-dimensional M-theory. These theories are very promising, seeming to unify quantum theory and general relativity and steering clear of the troubles which beset previous higher dimensional theories. In fact, according to Kaku, at the instant of creation our universe was a 10-dimensional supersymmetric universe with all forces and matter/energy unified into one entity! This book also delves into the origin and history of higher dimensional concepts, explained lucidly and brilliantly by Mr. Kaku. He explains that higher dimensional objects couldn't be visualized by us(3-D beings) and thus has to be viewed as projections or shadows on our 3-D space or even unravel them in our space(like a "tesseract", which is an unraveled hypercube). Kaku often drives home his point by explaining in terms of 2-D "flatlanders" existing in our 3-D world, which no doubt is a very easy way of understanding these kinds of concepts. This book will also explain theories regarding parallel universes, black holes, worm holes, time travel and death of our universe. I definitely recommend this book to those who want to have a glimpse of the future and understand and enjoy the various physical concepts which are being brought from the realm of science fiction to our present day reality.
Rating:
Summary: "Hyperspaced" over this book!
Review: I came across this book while browsing in my local megabookstore, unable to resist the challenge that it promised to make physics comprehensible even to complete non-scientists like me. "Oh yeah?" I thought; even now, the idea of wading through a tome of incomprehensible and abstruse theories is enough to make me break out into hives. But the book lives up to its promise. Mr. Kaku is an absolutely terrific teacher. He writes in laymen's language and makes his topic not only understandable, but even fun. He uses the concept of Flatlanders to help us understand what our world would look like to one who is only able to perceive in two dimensions (and by extension, helping us to understand why our three-dimensional brains have so much trouble conceiving of four or more dimensions), and he gives a truly hilarious sketch of how wormholes in space may be formed by imagining what would happen if you heated an ice cube on your kitchen stove to 10 to the 32nd power K (at this point, Mr. Kaku advises, it may be advisable to leave the kitchen). The illustrations are not only fun, but really illumine the points he is making. Mr. Kaku not only knows how to explain his ideas in readily comprehensible terms, he gets you wanting to explore further. In fact, this total scientific dummy (me) enjoyed reading this book so much, that when I closed the back cover, I opened the front cover and started reading it all over again. "Hyperspace" is testimony to Mr. Kaku's incredible talent as an educator as well as a writer.
Rating:
Summary: Amazing...Kaku is an extraordinary author.
Review: In his book, Hyperspace, he duscusses time travel, parrellel universes, extra dimensions, and the list just keeps going. His writing is easy to visualize and colorfull in ones mind. A one sit reading that leaves you spellbound in amazement
Rating:
Summary: Hyperspace by Dr. M. Kaku
Review: I may seem a litle young for this type of book, but even though it contained some equasions (which in "A Brief History of Time" Hawking stayed away from) it was well put and should be easy to understand by anyone who has some general knowledge of the general and special theories of relativity and some quantum physics too. I am not a braniac kid or anything, I get by and like to desighn things. Theoretical Physics Isn't exactly the hardest thing to comprehend (I think understanding our own mind probably is) and this is a good book to get. There are good descriptions and graphic illustrations (no this is not a kid's book) make this easy to understand by the layman. It tells of Superstrings (now known as the M-theory) and Worm holes. It also describes how we must evolve in the tree types of civilizationary stages, and includes many stoies and anecdotes all in all this was a good book
Rating: 
Summary: Good book
Review: The author presents the subject matter in an interesting way. He should stay away from the topic of evolution and religion, though.
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