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Summary: An Introduction to Hyperspace
Review: This is an odyssey into the history of development of the concept of hyperspace that includes fourth and higher spatial dimensions to account for the riddles and unsolved problems of unified field theory. Since the postulation of special theory of relativity, Einstein and subsequent physicists until now have struggled to explain the four natural forces; the electromagnetic force (explained by Maxwell's field equations for electricity & magnetism); the strong and weak nuclear forces (explained by Yang - Mills field equations for subatomic forces); and the gravitational force (explained by Einstein's field equations of gravitation and relativity) by one unified field theory (theory of everything: String Theory). In other words, unifying the forces of the big, the cosmos, and the laws of the small, the microcosm (subatomic forces) by one single theory. The first part of the book describes how laws of nature become so simple to understand if higher dimensions are invoked; the author gives us a good historical background to build his case for hyperspace concept. The second part of the book describes the evolution of quantum mechanics and String theory. An introduction to wormholes, black holes and the use of these cosmic bodies for interstellar travel is given in the third part. The fourth part rambles through the future of the universe with irrelevant and some times out of focus narrative. The book is entirely free of physics and mathematics; from the point of understanding the basic concepts this approach is welcome. This book also gives an insight into the poignant story of Riemann (p.42) and Ramanujan (p.174) who sustained enormous personal and family hardships to contribute significantly in the field of mathematics. We also get a glimpse of academic rat race that involves professional rivalry, name & work recognition, and personal ego that is prevalent in academics. This is illustrated when Einstein delays Kaluza's paper for publication for 2 years (p.102). Bohr calling Pauli's lecture crazy (p.137); Sheldon Glashow ridiculing t'Hooft's work (p.121); a superior discouraging Mahahiko Suzuki's publication about Euler's Beta function (p.161); and Pauli being furious about Eisenberg's claim, Einstein - Bohr argument, and Schrodinger frustrated with Bohr's interpretation (p.261). The author rambles about symmetry in arts; what is that got to do with hyperspace? The reader can find this discussion in any art book. Time travel has been described in layman's language in many books in depth; this discussion is unnecessary for this book. Throughout the book, the author refers to standard model and the equations of quantum mechanics as ugly; Equations are not ugly, they are complex or non-symmetrical. The author could have devoted one chapter to describing the field equations in layman's terms; it would have helped a more enthusiastic reader to build a bridge to physics and tensor calculus. The reader should not be discouraged about mathematics in understanding relativity; many physicists themselves are heading to the library to learn about mathematics in String theory (Part 2). More appropriate title of the book could be hyperspace - a historical development of String theory. Despite the minor concerns, this book has strong points as observed above. I encourage the reader to buy this book; if you are not happy with this book, it is less than two-lunch money (page numbers from 1994 edition).
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Summary: Hyper Dimensional for Dummies
Review: Though it is impossible to visualize higher dimensions and difficult for most of us to understand the equations involved in this technical field, Michio Kaku, who has become the "Carl Sagan" of our time, does an excellent job of helping lay readers comprehend hyperspace. The concept of higher dimensions, which was formerly introduced in 1854 by Geog Riemann, was not taken seriously because it was an untestable theory and lost credibility upon the introduction of quantum theory in the early twentieth century. Reinman believed that the forces of nature such as electricity, magnetism, and gravity were just effects caused by the crumpling or warping of hyperspace, an idea that Albert Eisntein revived in his theory of general relativity. In this comprehensive and often humouous work, Kaku takes the reader from the fictional characters of Charles Hinton to Relativity and String theories; both of which have revived interest in higher dimensional reality. If you thought, like me, that you could never come close to understanding the concepts of hyperspace, this book will surely bring you within reach of this understanding, while providing a sound background in the history and development of higher dimensions.
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Summary: Great Book
Review: VERY GOOD book written by the extremely smart and well-rounded scientist. Very easy to follow.
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