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Parallel Worlds: A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos
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Is our universe dying?
Could there be other universes?
In Parallel Worlds, world-renowned physicist and bestselling author Michio Kaku—an author who “has a knack for bringing the most ethereal ideas down to earth” (Wall Street Journal)—takes readers on a fascinating tour of cosmology, M-theory, and its implications for the fate of the universe.

In his first book of physics since Hyperspace, Michio Kaku begins by describing the extraordinary advances that have transformed cosmology over the last century, and particularly over the last decade, forcing scientists around the world to rethink our understanding of the birth of the universe, and its ultimate fate. In Dr. Kaku’s eyes, we are living in a golden age of physics, as new discoveries from the WMAP and COBE satellites and the Hubble space telescope have given us unprecedented pictures of our universe in its infancy.

As astronomers wade through the avalanche of data from the WMAP satellite, a new cosmological picture is emerging. So far, the leading theory about the birth of the universe is the “inflationary universe theory,” a major refinement on the big bang theory. In this theory, our universe may be but one in a multiverse, floating like a bubble in an infinite sea of bubble universes, with new universes being created all the time. A parallel universe may well hover a mere millimeter from our own.

The very idea of parallel universes and the string theory that can explain their existence was once viewed with suspicion by scientists, seen as the province of mystics, charlatans, and cranks. But today, physicists overwhelmingly support string-theory, and its latest iteration, M-theory, as it is this one theory that, if proven correct, would reconcile the four forces of the universe simply and elegantly, and answer the question “What happened before the big bang?”

Already, Kaku explains, the world’s foremost physicists and astronomers are searching for ways to test the theory of the multiverse using highly sophisticated wave detectors, gravity lenses, satellites, and telescopes. The implications of M-theory are fascinating and endless. If parallel worlds do exist, Kaku speculates, in time, perhaps a trillion years or more from now, as appears likely, when our universe grows cold and dark in what scientists describe as a big freeze, advanced civilizations may well find a way to escape our universe in a kind of “inter-dimensional lifeboat.”

An unforgettable journey into black holes and time machines, alternate universes, and multidimensional space, Parallel Worlds gives us a compelling portrait of the revolution sweeping the world of cosmology.

Customer Reviews:

  • A pleasure to read
    Serious, scientific, up-to-date, well-written, well-priced, easy-to-read, humorous at times, great writing style for a scientist. Worthy of your time, bookshelf space and money. Kaku digs in very deep without getting tiring or confusing. Highly highly recommended....more info
  • interesting
    this book is very good view of the physics of the new millenium..michio kaku really knows what he's talking about and im sure this isn't his last book on this topic...more info
  • Serious Science
    Michio Kaku presents the world of physics and cosmology in a way that casual science fans can appreciate. The primary theme of this book is the ultimate fate of the universe and whether intelligent life will be able to escape its fate. The most interesting theory he proposes is that intelligent beings will be able to escape a dying universe by traveling to a parallel universe which is at a younger stage. When you read this, you'll be really surprised to see that the world of physics is almost alien to the world of common sense. To give an example, string theory proposes that all matter in the universe is nothing but the vibration of strings or cosmic music. I really recommend this for those who would like to get some insight into the world of physics and cosmology, but don't want to burn too many brain cells with the mathematics of the field....more info
  • Well written, covers a lot of material
    I was quite impressed to find that this book touched on every subject I had expected or just hoped for, and more. Not only does it contain an update on the most current understanding of our universe and the possibilities of a greater "multiverse" of parallel universes; it also gives a historical view of how we got there, including some background knowledge and stories about the great physicists who got us this far.

    I am a physics student and hence have some background knowledge that aids in understanding, but the author doesn't assume readers to have a physics background and does a good job of explaining things in a down-to-earth manner. I can highly recommend this book to anybody who is curious about what the latest science has to say about any of the following:

    The universe, its beginning and its end, dark matter, dark energy, wormholes, black holes, multiple theories for parallel universes (relativity, quantum and string theory all suggest them as a possibility), string theory, higher dimensions, possibilities of travelling in spacetime and other dimensions, teleporting, travel faster than the speed of light, development of civilizations and what our future may look like (e.g. how we can manage to escape when our spot in spacetime becomes uninhabitable)....more info
  • Yo! Michio...
    Yo! Michio... Whachu smokin' booooy? An'...where can we get some? Okay, seriously: this does remind me of those wild late night conversations we used to engage in at university back in the day... typically after too many bong hits. These are some mind-stretching ideas, and yes ancient Hindu (Dravidic?) mystics tried to record all this for us in an earlier iteration. But the language they used in their explanations was perhaps too poetic, too mystical and too symbolic to survive the centuries and translation (both language and cross-cultural translation). A good companion to this book would perhaps be Ervin Laszlo's "Science and the Akashic Field" or "The Whispering Pond" by the same author. Never-the-less we do owe Kaku (and Laszlo, and others: Fred Alan Wolf, Michael Talbot?) our gratitude for even attempting to make this bizarre subject accessible to those of us who have not the benefits of higher education or mystical experience! A fair amount of "suspension of disbelief" is required here. Kaku does this particularly well because he tries to employ "everyday language."...more info
  • THANK YOU SIR !!

    THANK YOU MICHIO FOR AT LAST A

    READABLE BOOK ON WHAT THE UNIVERSE

    IS ALL ABOUT. I CANNOT RECOMMEND

    THIS BOOK MORE THAN FIVE STARS

    OR I WOULD.

    I READ A LOT AND FINDING READABLE

    MATERIAL IS NOT EASY.

    GENE ADDINGTON...more info
  • Current cosmology for a lay audience
    I think it was Niels Bohr, the great Danish physicist, who told his fellow scientists many years ago that they had an obligation to try to enlighten laymen about the latest findings of science. This was not long after Einstein's theories of relativity and the development of quantum mechanics had demonstrated that the world in which we live and thrive was much stranger than previously thought. The comfortable and intuitive cosmos, as described by Newtonian mechanics, had been superceded by a world view that seemed not only bizarre, but even incomprehensible.

    This new book by Michio Kaku is one of the latest efforts by leading-edge scientists to fulfill that felt need recognized by Bohr. Targeting the educated layman, Kaku addresses his audience in a manner that is both entertaining and non-intimidating. Instead of mathematical descriptions, he relies on everyday analogies to convey his meanings. He includes a good measure of the history behind the theories, spiced with anecdotes and humor. While tackling an inheritantly difficult subject matter, he has succeeded in making it about as accessible as it could possibly be for a lay audience.

    I emphasize that this is an up-to-date account. Just a few years ago, some physicists were merely speculating about the possibilities of multiple universes, parallel worlds, time travel, worm holes...things that sounded then more like science fiction than fact. Data only recently acquired by the WMAP satellite and the rapid development of string theory (and its latest incarnation, M-theory) have caused many of the best minds to not only entertain the possibility of such phenomena but, in many cases, consider them necessary corollaries to any credible Grand Unified Theory ( i.e., a "theory of everything.") According to Kaku, we're getting very close to such a theory.

    This is heady stuff, presented in a form that makes science fiction, the ramblings of mystics, and the wildest conjectures of amateur cosmologists seem dull by comparison. And it is offered to us by a man who is at the forefront of current physics, a leading theorist in string theory and, most notably, a man who is an expert in assuring that his speculations are not in conflict with known facts.

    I recommend this book to anyone who is interested in what science knows today about the past history and nature of our cosmos and what the future may hold. It's an absolutely fascinating read!

    ...more info
  • Best book I've read on the subject
    I've read half a dozen books attempting to explain the essentials of cosmology, the big bang, quantum mechanics, string theory, dark energy, and other facinating, but horrendously difficult, concepts. Kaku does better at helping my feeble mind understand the origin, the composition, and the ultimate fate of the universe than any other author I have encountered. Moreover, this book is up-to-date -- published in 2005 -- and given recent developments in theory any book over about 5 years old will be a bit behind the times.

    In Chapter One, Kaku summarizes in simplified form what he will discuss in the rest of the book -- and lo-and-behold I could understand it! He then gives a brief history of cosmology and delves into the development of cosmological thought. I stumbled through a lot of the material, but his writing and examples, often drawn from science fiction, were interesting, although not always comprehensible to me.

    The most unique part of the book was his speculation that a near infinite number of different universes may exist in different dimensions and that someday, a billion or so years hence, we may learn to pass from one to another. In fact, as he points out, it may become necessary for the survival of the human race when our old star begins to burn out. Confirmed atheists may be offended by his frequent references to what sounds a lot like "God." His speculations on the nature of future civilizations, the possibilities of time travel, and man's search for the "theory of everything" were fascinating.

    For the general reader who wants to take a tour of our universe -- its largest and smallest elements -- this is an excellent introduction.

    Smallchief ...more info
  • Excellent Reading For Any Technical Skillset
    Michio has done an excellent job at describing the current understanding of the Universe, based on the latest proven theories. He has the ability to reach out to all skill levels. This is simply the best book I have ever read regarding the Universe. Thanks to my good friend and colleague, Neal Bailey, for recommending this book....more info
  • Very Easy to Understand
    I don't have much physics backgroud but found this book very easy to comprehend and easy to read also. The information is astonishing....more info
  • I understood it!!!!!!!!!!!!!!!!!!!!!!!!!
    This has to be the best book on this subject. After suffering thru a brief history of time and a briefer history of time this was what I was looking for the whole time I was about to give up on Cosmology as a Pseudoscience until picking this up.Mr. Kaku seems to understand and relate to people not just science a good writer and a good read. ...more info
  • String Theory is In! Cool
    1. The Wilkinson Microwave anisotropy probe (WMAP) satellite was launched in 2001 giving an unprecedented view of the Universe. The WMAP satellite

    2. The age of the Universe is 13.7 billion years.

    3. The temperature of space is 2.7249 to 2.7251 degrees Kelvin.

    4. 73 percent of the Universe is made of dark energy. Dark energy is thought to create a new anti-gravity field which is driving galaxies apart. Alan Guth inflationary scenario, in the first trillionth of a second, a mysterious antigravity force caused the universe to expand much faster than thought. The inflationary period was unimaginably explosive, expanding faster than light.

    5. Andrei Linde proposes self-reproducing inflation or chaotic inflation, tiny patches of a universe suddenly inflating giving birth to a new universe.

    6. String theory and M-theory are based on simple and elegant idea that subatomic particles are made up of strings similar to notes one can play on a violin string or on a membrane of a drum head. The strings and membranes exist in ten and eleven dimensional hyperspace.

    7. M-Theory has the ability to unify the theory of relativity with quantum theory. Only in ten or eleven dimension hyperspace do we have enough room to unify all the forces of nature in a single elegant theory.

    8. A field is a mathematical object that assumes different values at every point in space. The field measures the strength of the magnetic, electrical, or nuclear force at any point in the universe. The fundamental description of electricity, magnetism, nuclear force, and gravity is based on fields. The field theory of strings allows the entire content into one equation.

    9. The symmetries of string theory gave it its beauty and power. Strings reside on 2 dimensional surfaces. For string theory to describe both gravity and subatomic world, it meant that strings would on be 10 pow -33 long (planks length).

    10. Schwartz and Green showed that string theory is free of anomalies, the theory of everything.

    11. Strings can interact by splitting and rejoining, thus the interactions among electron and protons in the atom. Subatomic particles are different vibrations on the string.

    12. The lowest vibration of the string, a spin two particle with zero mass, can be interpreted as a graviton, a particle or quantum gravity. The stronger the vibration on the string, the stronger the influence on other gravitons.

    13. Kalzua discovered, if you manually separated out the fourth-dimensional pieces contained within the five dimensional equation for the theory or relativity, Maxwell's theory of electromagnetic force tumbles out. Maxwells complex equations emerge effortlessly as the simple vibrations found in the fifth dimension. Higher dimension vibrations reproduced W and Z bosons and gluons found in weak and nuclear forces.

    14. Ten dimensions were unstable, six curled up into a ball, and the other four expanded outward in the big bang.

    15. In super symmetric theory, all the subatomic particles have a partner: each fermion is paired with a boson. Super symmetric as the potential of unifying all atomic particles into one simple symmetry.

    16. Einsteins equations on gravity could become super symmetric if introduce a new field, super gravity. Super gravity was based on point particles.

    17. Lisa Randall thought of the universe being a membrane. Randall focused on the fact that gravity is astronomically small. Electromagnetism, weak nuclear force, and the strong force are roughly the same and gravity is wildly different. The masses of quarks are smaller than the mass associated with quantum gravity separated by sixteen orders of magnitude. Randall assumed the universe was a three-brane floating in a five dimensional world. The vibrations on the three-brane corresponded to the atoms around us. The vibrations can not leave the three-brane.

    18. The inverse square law of gravity works perfectly for planets, stars, and galaxies. Nowhere in space do we find an inverse cube law for gravity. Dimopoulus suggested maybe the fifth dimension is not infinite but is a millimeter aw from ours. Randall suggested the fifth dimension was infinitely far from us. The three-brane has a gravitational pull preventing gravitons from drifting freely into the fifth dimension. Gravity is diluted and weakened as it leaves the three-brane and drifts into the fifth dimension. Randall introduced the possibility of a second brane where gravity interacts across the two membranes.
    ...more info
  • Good Overview for the Layman
    This is the first book I have read in this field and I was encouraged to read it when I overheard an NPR discussion with Kaku while washing the kitchen floor one day. For me the power of this book (and of the man himself) is its ability to excite the interest of the layman. As a wannabe teacher, I find Kaku's presentation to be brilliant in terms of his ability to excite his audience and give them 'wow' moments. Sure, maybe he doesn't present a totally complete and unbiased opinion of the subject matter (although I am not one to judge this), but he may spur the interest of a few of the next generation of comologists and to for me that is what is important - keeping people informed and turned-on to science so that they will pursue the subject and generate the next round of discoveries. I recommend this to all who love to learn. I only wish I could attend Kaku's lectures......more info
  • Disappointing
    I bought Michio Kaku's book thinking I would find new material and insights, given its 2004 publication date, compared to Brian Greene's 'Elegant Universe' from 2000. In fact, Kaku's book seems to me less informative, less well explained, and covering less ground, than Greene's. At some points it seems like you can feel the author giving up before the difficulty of explaining his material without maths....more info
  • Fascinating. Impressive. Amazing!
    Ranges further and is more accessible than Brian Greene's "Elegant Universe." A must read for anyone who is interested in the _very big questions_. ...more info
  • Interesting, at times hard to follow
    Surely, Prof. Kaku knows his subject matter, and he knows how to write. His explanation of string theory and M theory were understandable for a layman like me.
    However, when he applied this to cosmology, it became confusing for me: There seem to be endless possibilities for baby universes, multiple universes.... it almost sounded more like science fiction. Surely, this is due to my limitations, rather than to Prof. Kaku's knowledge of the subject matter. It seems, that a firm understanding of our universe(es)is still far away.



    ...more info
  • An infinity of worlds
    There may come a time when you are at a bookstore and you see Parallel Worlds by Michio Kaku on the shelf. Will you buy it? Yes and no. In one set of universes you do, in another you don't. If you think you might be in one of that first set of realities, you will likely be reading a book that is entertaining and informative, though by no means perfect.

    Parallel Worlds is divided into three general parts which move from solid facts to pure speculation. In the first section of the book, we get a good overview of the history of cosmology and see how the Big Bang theory developed and why it is firmly established as the best explanation of how the universe developed. The second section moves into the more theoretical realm of stings and branes; while these theories offer a good mathematical basis for the structure of matter, they have yet to be proven through observation (primarily because such observations are beyond our current technological abilities). The final part of the book deals with the possibilities of alternate universes, time travel, wormhole travel and the future development of civilization.

    The first two parts are clearly written and make sense of often complex subjects. Cosmology and quantum mechanics explain the structure of things on completely different levels. With cosmology (and astronomy), we look at the super-large: star systems, galaxies, etc. and the theories of relativity. With quantum mechanics, we are in the subatomic realm. Usually, the two areas are completely separate so the theories don't conflict, but in extreme circumstances, they converge and problems develop. These circumstances include black holes and most significantly, the Big Bang itself. To deal with these conflicts, new theories have been developed, notably string theory. This is a theory that is (to say the least) rather complicated and often requires some very esoteric mathematics, but Kaku does a reasonable job at making it understandable.

    The third section, more than anything shows, that Kaku has a not-so-secret desire to be a science fiction writer. His affection for the genre is obvious (based on his references to books and movies), and this section is often so speculative as to be borderline fiction itself. That is not necessarily bad, but it is a departure from earlier text.

    I actually think the best readership for this book would be aspiring science fiction writers. For such an audience, Kaku provides a scientifically valid (if still unproven) set of ideas about parallel worlds and other concepts that can be used as a foundation for all sorts of stories. For others who have read similar books in the past (such as Brian Greene's The Elegant Universe or Timothy Ferris's The Whole Shebang), this book doesn't offer much that is new, but rather just presents familiar material in a simpler manner. If you haven't read those other books, however, this is a good introduction to this still-developing area of science.
    ...more info
  • Fascinating Book! Technical, but a good read
    I bought this for my husband for Christmas. We've seen Michio Kaku on various "The Universe" shows on the History Channel and although I find it interesting, my husband really likes reading this stuff. he thought it was a very interesting book...it makes you think for sure! If you're a space geek, you'll love it....more info
  • AMERICA'S 25 BEST BOOKS ON UFOS AND EXTRATERRESTRIALS. THE LIST.

    AMERICA'S 25 BEST BOOKS ON UFOS AND EXTRATERRESTRIALS. THE LIST.
    Americans love lists. A trend that has started in 1960-1965; I felt it first hand while a student in Boston. Today, there are lists of the best; lists of the worst; lists of everything.
    I never thought, some could spend quality time assembling charts and lists on the best of UFOs' and extraterrestrials books. Actually there are a sizeable amount of lists pertaining to that effect. So I joined in. However, I did it my way; scholastically.

    If you had a child or an elderly at home, what sort of UFO and extraterrestrials books would you give him or her for direction, or as a gift? Not an easy task, I can tell you that! Nevertheless, I have some good ideas.

    BOOKS THAT HAVE DEPTH AND ORIGINALITY:
    Meaning deep thoughts, and serious contents. In other words, pioneering research and new material.

    Book 1: ANUNNAKI ENCYCLOPEDIA.
    Author: Maximillien de Lafayette. Ph.D.

    Book 2: THE LOST BOOK OF ENKI: MEMOIRS AND PROPHECIES OF AN EXTRATERRESTRIAL GOD.
    Author: Zecharia Sitchin.

    Book 3: BOOK OF RAMADOSH: 13 ANUNNAKI-ULEMA MIND POWER TECHNIQUES TO LIVE LONGER, HAPPIER, HEALTIER...PARANORMAL, ALIEN LIFE.
    Author: Maximillien De Lafayette, Ph.D.

    Book 4: PARALLEL WORLDS: A JOURNEY THROUGH CREATION, HIGHER DIMENSIONS, AND THE FUTURE OF THE COSMOS.
    Author: Michio Kaku, Ph.D.

    Book 5: ANUNNAKI, UFOS, EXTRATERRESTRIALS & AFTERLIFE GREATEST INFORMATION AS REVEALED BY DE LAFAYETTE: SELECTIONS FROM HIS 50 YEARS OF STUDYING WITH ANUNNAKI ULEMA, HIS SECRET FINDINGS & HIS WRITINGS.
    Author: Maximillien De Lafayette, Ph.D.

    Book 6: DE LAFAYETTE MEGA ENCYCLOPEDIA OF UFOS, EXTRATERRESTRIALS, ALIENS ENCOUNTERS & GALACTIC RACES: UFOLOGY FROM A TO Z: TIME-SPACE, TRAVEL, ANUNNAKI, GRAYS, HYBRIDS, ABDUCTIONS, PARALLEL UNIVERSES. Author: Maximillien De Lafayette, Ph.D.

    Book 7: THE UFO ENIGMA: A NEW REVIEW OF THE PHYSICAL EVIDENCE.
    Author: Peter A. Sturrock, Ph.D.

    Book 8: UFOS AND THE NATIONAL SECURITY STATE: CHRONOLOGY OF A COVERUP, 1941-1973.
    Authors: Richard M. Dolan and Jacques F. Vallee, Ph.D.

    Book 9: ON THE ROAD TO ULTIMATE KNOWLEDGE:
    Authors: Maximillien de Lafayette, Ph.D., and Ilil Arbel, Ph.D.

    Book 10: CAPTURED! THE BETTY AND BARNEY HILL UFO EXPERIENCE: THE TRUE STORY OF THE WORLD'S FIRST DOCUMENTED ALIEN ABDUCTION. Authors: Stanton T. Friedman, and Kathleen Marden.

    Book 11: FLYING SAUCERS AND SCIENCE: A SCIENTIST INVESTIGATES THE MYSTERIES OF UFOS: INTERSTELLAR TRAVEL, CRASHES, AND GOVERNMENT COVER-UPS.
    Authors: Stanton T. Friedman, Edgar Mitchell, Ph.D. and Bruce Maccabee, Ph.D.

    Book 12: NEED TO KNOW: UFOS, THE MILITARY, AND INTELLIGENCE.
    Author: Timothy Good.

    Book 13: THE DAY AFTER ROSWELL.
    Authors: Late Colonel Philip J. Corso and William J. Birnes, Ph.D.

    Book 14: TWELFTH PLANET: BOOK I OF THE EARTH CHRONICLES (THE EARTH CHRONICLES).
    Author: Zecharia Sitchin.

    Book 15: GENESIS REVISITED: IS MODERN SCIENCE CATCHING UP WITH ANCIENT KNOWLEDGE?
    Author: Zecharia Sitchin.

    Book 16: EXTRATERRESTRIALS, UFO, NASA-CIA-ALIENS MIND BOGGLING THEORIES, STORIES AND REPORTS: Anunnaki, Zeta Reticuli, Area 51, Abductees, Whistleblowers, Conspirators. The Real & THE FAKE.
    Author: Maximillien De Lafayette, Ph.D.

    Book 17: THE ANUNNAKI'S GENETIC CREATION OF THE HUMAN RACE.: UFOS, ALIENS AND GOD, THEN AND NOW.
    Author: Maximillien De Lafayette, Ph.D.

    Book 18: ALIEN AGENDA: INVESTIGATING THE EXTRATERRESTRIAL PRESENCE AMONG US.
    Author: Jim Marrs.

    Book 19: STRANGE SKIES: PILOT ENCOUNTERS WITH UFOS.
    Author: Jerome Clark.

    Book 20: 460,000 YEARS OF UFO-EXTRATERRESTRIALS BIGGEST EVENTS AND SECRETS FROM PHOENICIA TO THE WHITE HOUSE: FROM NIBIRU, ZETAS, ANUNNAKI, SUMER TO EISENHOWER, MJ12, CIA, MILITARY ABDUCTEES, MIND CONTROL.
    Author: Maximillien De Lafayette, Ph.D.

    Book 21: THE ROSWELL LEGACY: THE UNTOLD STORY OF THE FIRST MILITARY OFFICER AT THE 1947 CRASH SITE.
    Authors: Jesse, Jr. Marcel, Linda Marcel, and Stanton T. Friedman.

    Book 22: DARK MISSION: THE SECRET HISTORY OF NASA.
    Authors: Richard C. Hoagland and Mike Bara.

    Book 23: TOP SECRET/MAJIC: OPERATION MAJESTIC-12 AND THE UNITED STATES GOVERNMENT'S UFO COVER-UP.
    Authors: Stanton T. Friedman, and Whitley Strieber.

    Book 24: DISCLOSURE : MILITARY AND GOVERNMENT WITNESSES REVEAL THE GREATEST SECRETS IN MODERN HISTORY.
    Author: Steven M. Greer.

    Book 25: ABOVE TOP SECRET: THE WORLDWIDE UFO COVER-UP.
    Author: Timothy Good.

    List compiled by Zaki Abaza, Ph.D.
    Date: 10 March 2009.

    ...more info
  • Basic and Understanding
    This book is easy to understand and you really see the basics of cosmology without having to understand equations and the whole physics works. Its easy to read and it totally boggles your mind. It gives you definitions where you need them and it explains to you everything you need to know in the most simplist way. I recommend this book to any beginner or even just the typical reader who finds space and comsology interesting. I, myself, never read about cosmology ever in my life before. When I read this book, it was simple, logical, and really made you think. The author doesn't tell you what to think or believe, he opens your mind to a bunch of different possibilities so you can see the whole picture. He names all the theories and ideas and let's you draw your own conclusions. This book is just a source of interesting facts and info about cosmology without any scientific gibberish that is unpronouncable. It's truly great....more info
  • briliant..... you will never look at the world in the same way
    hello . this book is so facanating it is hard to belive. literly after you read about the quantum paralel worlds part you never ever look at the world in the same way.also i was ten when i read this book and still found it facanating and 100% comprehend able. because of this book and many others by michio ka ku i want to be a theoretical phisisist. i hope you buy this book. happy reading^_^...more info
  • An excellent explanation of status quo physics
    In this book, Michio Kaku, a leading theoretical physicist, discusses the current state of the search for a unified theory to explain everything, from quantum physics to relativity and everything in between. In layman's terms, he discusses the history of string theory and M-Theory, the current form of string theory, and what it all means in terms of the possibilities of alternate universes, time travel, and the origin of the universe. Kaku discusses the possibilities of more than 3 spacial dimensions, as implied by the theory. Kaku goes on to discuss the ultimate fate of the universe: a continual expansion resulting in temperatures too cold to support life, or a crushing implosion resulting in temperatures too hot to support life. Kaku discusses the possibility that M-Theory may increase our understanding of the universe (or multiverse) enough to be able to travel into a different universe, or back in time, before our universe collapses. Kaku ends with a philosophical discussion on our place in the universe and what the point of it all is.

    If you have read Kaku's book "Hyperspace", some of this book will be review, as he includes some of the same concepts of extra dimensions in this book.

    Kaku explains the science in such a way that the layperson can understand it fairly well. He doesn't go into much mathematical detail; he only explains enough so that the reader understands what the theory means and doesn't get bogged down with all the details. This is what makes Kaku's writing great. His books, such as this one, are written for those who haven't studied physics in depth but who are interested in what is going on in the field of physics and the search to understand the universe.

    The bottom line: Kaku is a great resource for the latest developments in theoretical physics and our understanding of the universe....more info
  • Endlessly fascinating!
    Like its predecessor Hyperspace, PW is a fascinating tour of physics at the theoretical cutting edge. MK is an ever lucid and entertaining guide. Though he doesn't always succeed in making abstruse ideas completely intelligible, he does so for the most part. And where he is less successful -- as PW progresses to M-theory and beyond -- he nonetheless spurs his readers' enthusiasm to read on. It's hard to imagine 'headier' stuff than one finds between the covers of PW. My thanks to MK for letting us non-physicists/cosmologists in on all the excitement!...more info
  • The Best Book since Carl Sagan 's Age
    This is a book that follows the style of Carl Sagan, but it is not Carl Sagan ! Dr. Michio Kaku provide a path of light into the M theory. This is not a simple scientific book it is the main stone in the foundation of new knowledge....more info
  • Creationist bias
    The glossary entry for "anthropic principle" begins "The principle that the constants of nature are tuned to allow for life and intelligence." Tuning something is an activity that demands intelligence.
    Actually I think the most intelligent thing the designer ever did was inventing evolution....more info
  • Cosmology made clear: a major feat in divulgative science
    This Author deserves praise for being one of those few science writers that really know how to divulge science to the layperson without oversimplfying it. I find this book rich in information, interresting speculations and intriguing hypotheses. There is also an honest unbiased appraisal of modern theories,from the famous and somewhat over-vaslued "string theory" to the most bizarre "hologram" theory.Carl Sagan and Isaac asimov would have liked this book!...more info
  • Asking the Fundamental Question
    Often times we find ourselves getting trapped in our own logic and in our own minds... much like Plato's story of the prisoners in the cave. There really can not possibly be any "minds", but just a mind. The number 1 barrier that face theoretical physicists today is the assumption that a universe was created for them to observe. Some of them know it deep heartidly but still choose a detached viewpoint. "I am here and I am observing the universe out there". Is that really a valid assumption? How can truth be brought to light through such a detached viewpoint of separation when the very definition of truth itself is that it is unchanging and whole....more info