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Title: Time Travel in Einstein's Universe: The Physical Possibilities of Travel Through Time by J. Richard Gott ISBN: 0-395-95563-7 Publisher: Houghton Mifflin Co Pub. Date: 21 May, 2001 Format: Hardcover Volumes: 1 List Price(USD): $25.00 |
Average Customer Rating: 3.87 (31 reviews)
Rating: 5
Summary: Time Travel in Einstein's Universe
Comment: Time Travel in Einstein's Universe: The Physical Possibilities of Travel Through Time written by J. Richard Gott is a very well-written book about time travel and what it might consist.
This book is easily read and is a delightfully refreshing as I found for the first time that the author was the first to completely explain Einstein's theory of relativity to me and I understand it and the ramifications.
The author explains how some of the best science fiction can stimulate science fact in the world's finest scientific people. Thus, time travel has been conceived.
The book only has five chapters all of which dedeal with the subject of time travel as seen of different angles. Cosmic strings, space folding upon itself, traveling back to a past event via two cosmic strings are discussed in detail along with wormholes and warpdrive. A warpdrive creates a U-shaped distortion in the spacetime creating a shortcut.
A self-creating universe according to the author, in which the universes give birth to other universes, a time loop at the beginning allows the Universe to be its own mother. I found thiss book to be some serious mind candy... some very deep level physical philosophy... indeed.
The prose moves quickly and you will not be bored as the author drives home his insightful points one after the other. The layperson will not be lost in space reading this book, but your mind could be bent as you read this very engaging book.
Rating: 4
Summary: we need even more about these tachyonic time travellers
Comment: Books on tachyonic time travellers,
time machines, wormholes in the fabric of
space and time, black hole bounces etc. tends to get
my attention. And J. Richard Gotts book delivers.
But more exciting spacetime geometries with time travel
possibilities and more on the theory of general relativity
itself would have improved the book.
I really got into it right from the start
with its brilliant interpretation of
special relativity theory. Here special relativity
isn't murky waters explained to you by
pretentious professors. Instead it is straight forward
stuff, and its puzzles are there for all to see.
After seeing his presentation of special relativity
I don't really understand what all the other presentations
was all about, except layers of confusion.
General Relativity is almost equally easy in
Gotts hands. Ten mathematical objects, called
tensors, informs you how spacetime is curved based on
mass energy density, pressure, etc.
With these tools comes various suggestions
for constructing a timemachine. Despite the enormity of
some of these constructions (dragging
your medium star a couple of lightyears away from its current
position seems almost trivial in comparison)
Gott tells about it all in a matter of fact way
that makes you believe that it could actually
be done.
Still, I think he could have explored
the theory of general relativity itself
more, even within the framework
of a popular science book.
After a trip to the distant past
of the universe Gott obviously
wants to reflect on the future as well. I don't
particular buy into his arguments here,
and would rather have heard some more about
the time machines. Still, all in all the book is a
good read.
-Simon
Rating: 5
Summary: Great Book (Not for Beginners)
Comment: I'm in the middle of reading this book and it is AWESOME. Gott does a great job writing and addresses both visual and non-visual learners. I would recommend it for anyone interested in physics and/or astronomy. Even half way through I understand much more than I did before starting. I'm in fifth grade and nobody but me in my class understands it (but, as you probably know, I'm not the average fifth grader). It is the best non-fiction book I've ever read and I hope you read it too!
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Title: How to Build a Time Machine by P. C. W. Davies ISBN: 0670030635 Publisher: Viking Press Pub. Date: 28 February, 2002 List Price(USD): $19.95 |
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Title: The Future of Spacetime by Stephen William Hawking, Kip S. Thorne, Igor Novikov, Timothy Ferris, Alan Lightman, Richard Price ISBN: 0393020223 Publisher: W.W. Norton & Company Pub. Date: June, 2002 List Price(USD): $25.95 |
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Title: Three Roads to Quantum Gravity by Lee Smolin ISBN: 0465078362 Publisher: Basic Books Pub. Date: 02 July, 2002 List Price(USD): $14.50 |
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Title: Black Holes and Time Warps: Einstein's Outrageous Legacy by Kip S. Thorne, Frederick Seitz, Stephen Hawking ISBN: 0393312763 Publisher: W.W. Norton & Company Pub. Date: January, 1995 List Price(USD): $18.95 |
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Title: Time: A Traveller's Guide by Clifford A. Pickover ISBN: 0195130960 Publisher: Oxford University Press Pub. Date: September, 1999 List Price(USD): $16.95 |
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