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Jim Al-Khalili

Black Holes, Wormholes and Time Machines

This book is created from a series of lectures that the author gave to teenage schoolchildren. As such it is entirely non-technical, but succeeds very well in linking the science of the theory of relativity with sci-fi concepts such as wormholes and time travel. It also includes an introduction to cosmology and a discussion of the philosophy of time. I would recommend it to any reader wanting a gentle introduction to these subjects or to more advanced readers who will enjoy it as a little light reading.

The book is in three parts, on Space, Time and Time machines. The first part looks at curvature of space and so introduces Einstein's general theory of relativity. The second part examines some of the philosophical issues concerning time, and then goes on to the Special theory of relativity. This means that GR is dealt with before SR, which reverses the order in which they were developed, but this doesn't seem to cause any problems. More puzzling is the chapter on time travel paradoxes in part 2 rather than part 3. I would have thought this chapter would be better after the description of how a time machine might be built, and in particular the self-consistency argument for 'wormhole billiards' would make more sense.

Amazon.com info
Paperback 290 pages  
ISBN: 0750305606
Salesrank: 1309161
Weight:0.79 lbs
Published: 1999 Taylor & Francis
Marketplace:New from $29.06:Used from $2.97
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Amazon.co.uk info
Paperback 290 pages  
ISBN: 0750305606
Salesrank: 351547
Weight:0.79 lbs
Published: 1999 Taylor & Francis
Marketplace:New from £34.00:Used from £4.98
Buy from Amazon.co.uk
Amazon.ca info
Paperback 290 pages  
ISBN: 0750305606
Salesrank: 1353138
Weight:0.79 lbs
Published: 1999 Taylor & Francis
Marketplace:New from CDN$ 33.69:Used from CDN$ 16.78
Buy from Amazon.ca





Product Description
Do you know:
  • What might happen if you fall into a black hole?
  • That the Universe does not have an edge?
  • That the reason it gets dark at night is proof of the Big Bang?
  • That cosmic particles time-travel through the atmosphere defying death?
  • That our past, present and future might all coexist "out there"?

    With two remarkable ideas, Albert Einstein revolutionized our view of the Universe. His first was that nothing can travel faster than light-the ultimate speed limit. This simple fact leads to the unavoidable conclusion that space and time must be linked together forever as Spacetime. With his second monumental insight, Einstein showed how Spacetime is warped and stretched by the gravity of all objects in the Universe and even punctured by black holes. But such possible twisting of Spacetime allowed a magic not even Einstein could have imagined: time-travel.

    Theoretical physicist Jim Al-Khalili finally lays science fiction to rest as he opens up Einstein's Universe. Leading us gently and light-heartedly through the dizzying world of our space and time, he even gives us the recipe for a time machine, capable of taking us Back to the Future, to Alice's Wonderland, or on a trip with the Terminator.