black holes wormholes and time machines pdf

Black Holes Wormholes And Time Machines Pdf

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Black Holes Wormholes and Time Machines - Jim Al-Khalili

Goodreads helps you keep track of books you want to read. Want to Read saving…. Want to Read Currently Reading Read. Other editions. Enlarge cover. Error rating book. Refresh and try again. Open Preview See a Problem? Details if other :. Thanks for telling us about the problem. Return to Book Page. 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 Un Do you know: What might happen if you fall into a black hole? 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.

Get A Copy. Paperback , pages. More Details Original Title. Other Editions Friend Reviews. To see what your friends thought of this book, please sign up.

Lists with This Book. Community Reviews. Showing Average rating 4. Rating details. More filters. Sort order. Sep 07, Ruben rated it it was amazing.

I actually read the digital version of this book while sitting in my College Library Yay! Big Olive! Which might tell you how good it is, since I read the whole book in two sittings while in the painful computer lab!

Best introduction to Cosmic-Super-Physics you can get. And it's great to get you started down the path of reading more and more complex books on this subject. May 07, Victoria rated it it was amazing. The title's pretty accurate.

The book covers the standard popular-physics-book basics of relativity, then goes into more detail about the ways that relativity allows time travel, especially involving wormholes.

It developed from a lecture that the author gave to high-schoolers to recruit them to study physics. At one point he says that it "was written with a teenage audience in mind," which could have put me off, but I'm glad it didn't. It is indeed a book that you could start without ever havin The title's pretty accurate. It is indeed a book that you could start without ever having heard of relativity, and it avoids math completely, but still manages to go into more detail than you might expect.

It explains the difference between rotating Kerr black holes and non-rotating Schwarzchild ones, which I don't remember learning anywhere before. It was also interesting to read how Carl Sagan's request for help with Contact led to the discovery that macroscopic wormholes are theoretically possible.

Aug 18, William Schram rated it it was amazing Shelves: non-fiction , physics , pop-sci , science. If you read about this sort of thing a lot as I do, this might not be anything new to you.

This might especially be the case since the book was printed in so most of the work is current to The book itself describes the phenomena in question with skill and grace, remembering that this book is meant for laypeople and others unfamiliar with the subject. It describes the bending of spacetime being the cause of gravity, the experiments that proved Einstein to be correct and made him a household name and so on.

As I mentioned, this book is meant for the common man or woman as the case may be. In that sense, the author avoids using too much scientific jargon and describes things in a manner that is easy to understand. I mean, Special Relativity is only applicable when an object is going at an appreciable fraction of the Speed of Light. The fastest man-made vehicle is probably a rocket, but I doubt that many people will have the opportunity to even ride such a thing.

However, that is nothing to the Speed of Light. At an appreciable fraction of the speed of light time itself slows down. Due to the Mass-Energy Equivalence equation that Einstein is known for, you will begin to gain mass as you get closer to light-speed.

In any case, this book was very good. It covers a great deal of material in a thin package and has a bibliography if you are curious about any of the subjects and ideas covered. Nov 07, Maj rated it really liked it.

This is my first non-all-out-space physics book. I love Prof Al-Khalili's TV programmes and have bought a few of his books in ebook form well, apart from this one which is hugely expensive, instead got a PDF of it from Academia. Definitely looking forward to reading the others but thought starting with the first one was as good a place as any. Not gonna pretend everything in this book lodged itself in my brain, after all, at school I got Cs from physics and Cs and Ds in maths And hopefully some of the basics are finally gonna stick from now on.

Like that there are two theories of relativity which I either never knew or have forgotten. See, that's my level of idiot right here. It's obvious that even 20 years ago Prof. Al-Khalili already had a knack for relating science to idiots. And I actually enjoyed the "attempts at humour", thank you very much. Lettura molto interessante anche per chi, come me, ha solo una scarsa infarinatura della matematica o della fisica. Decisamente consigliato! Dec 15, Sehar rated it it was amazing.

Never has physics felt more understandable! Through all the stephen hawking I've ever read and not retained an iota of, this is the book i was waiting for. A crash course into astrophysics, particles physics, quantum mechanics and of course black holes, wormholes and time machines. Nov 14, Yash Arya rated it it was amazing. The first book on cosmology I ever read.

Teaches a lot, as simply as one could expect, while keeping the material fascinating enough that you can't keep the book down. Jun 01, Massis rated it it was amazing. Jun 02, Joseph rated it liked it. Standard physics book. Neutral in explaining how time travel is possible with equal counterpoints on why it's impossible, which I liked.

Could have cut down on the attempted humor, but otherwise a good book. Oct 30, Alisa Kester rated it it was amazing Recommends it for: Renee. Shelves: non-fiction. This was quite an amazing book, even though he actually doesn't believe in the possibility of time travel he thinks the only way it would work was if the past, present, and future existed all together as one moment, and he believes that would negate free will.

Which it doesn't, of course, so he and I disagree there. But overall, I enjoyed it and learned enough to make my brain buzz with all my newly acquired knowledge and ideas. I particularly loved this section, on quantum particles: "If we mea This was quite an amazing book, even though he actually doesn't believe in the possibility of time travel he thinks the only way it would work was if the past, present, and future existed all together as one moment, and he believes that would negate free will.

I particularly loved this section, on quantum particles: "If we measure a certain property of an electron

Black Holes, Wormholes, and Time Machines

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Revive the interest in studying time travel, which poses new mathematical challenges and could not be ruled out by physics. Study the role of causality in fundamental physics including General Relativity and Quantum mechanics. Explore the mathematical, physical and logical consequences of closed timelike curves and other mechanisms which allow time travel. Contribute to a comprehensive vision of the underlying issues as well as exploring potential applications to relativistic and quantum metrology and space-time navigation. The conference will highlight new horizons in physics and astrophysics associated with the possible existence of a Time Machine. Examining these fundamental issues provides an opportunity to initiate new ideas and investigations which explore the role of causality and the interplay between General Relativity and Quantum Mechanics, two theories that on their own have been extensively verified by experiment but have not yet been successfully combined into a single unified theory. Exactly hundred years ago, in May , Arthur Eddington and three colleagues observed the gravitational light deflection, as predicted by Albert Einstein, during a total Sun eclipse.

Goodreads helps you keep track of books you want to read. Want to Read saving…. Want to Read Currently Reading Read. Other editions. Enlarge cover. Error rating book.


You should be more open minded to other possibilities that just may not have occurred xvii BLACK HOLES, WORMHOLES & TIME MACHINES to you. Imagine​.


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Al-Khalili talks about a range of modern science topics, from geometry to the theory of relativity. This article about a science -related book is a stub. You can help Wikipedia by expanding it. From Wikipedia, the free encyclopedia. Book by Jim Al-Khalili.

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A wormhole or Einstein—Rosen bridge or Einstein—Rosen wormhole is a speculative structure linking disparate points in spacetime , and is based on a special solution of the Einstein field equations. A wormhole can be visualized as a tunnel with two ends at separate points in spacetime i. Wormholes are consistent with the general theory of relativity by Einstein , but whether wormholes actually exist remains to be seen. Many scientists postulate that wormholes are merely projections of a fourth spatial dimension , analogous to how a two-dimensional 2D being could experience only part of a three-dimensional 3D object.

 Должно быть, где-то замыкание. Желтый сигнал тревоги вспыхнул над шифровалкой, и свет, пульсируя, прерывистыми пятнами упал налицо коммандера. - Может, отключить его самим? - предложила Сьюзан. Стратмор кивнул. Ему не нужно было напоминать, что произойдет, если три миллиона процессоров перегреются и воспламенятся.

Цезарь, объясняла она, был первым в истории человеком, использовавшим шифр.

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