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Possibilities in Parallel: Seeking the Multiverse [Kindle Edition]

Scientific American Editors

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Parallel universes are a staple of science fiction, and it's no wonder. They allow us to explore the question, "what if?" in a way that lets us step completely outside of the world we know, rather than question how that world might have turned out differently. For cosmologists, the question isn't "what if the South won the Civil War?" but "what if the constants that make up the fundamental building blocks of physics were different?" Physicists argue that any slight change to the laws of physics would mean a disruption in the evolution of the universe, and thus our existence. Take gravity, for example: too strong and stars would burn through their fuel far more quickly. If the universe expanded too fast, matter would spread out too thin for galaxies to form. The list of examples goes on – to the point where the laws of physics might seem finely tuned to make our existence possible. Short of a supernatural or divine explanation, one possibility is that our universe isn’t the only one. That's the idea explored in this eBook, Possibilities in Parallel: Seeking the Multiverse. In Section 1, we explore why scientists think other universes could exist. After that, we get a look at the implications. Is it possible to have life in a universe with different physical laws? It would seem so. In “Cracking Open a Window,” George Musser discusses the possibility that our universe has more than three spatial dimensions – the others happen to be very small. Other articles, including “The Universe’s Unseen Dimensions,” analyze the idea that our universe is one of many "branes" – three-dimensional structures stretched out over a higher-dimensional space. The concept of a parallel universe also touches time travel, and then there's the question of what the term "parallel universe" actually means. It's a triumph of the sciences that the very question of why the universe looks as it does can be asked at all. There are currently several possibilities for a multiverse, if it exists. Time and a lot of scientific spadework will reveal which one is right – and get us closer to answering those metaphysical questions: what if, why us, why now?



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Die hilfreichsten Kundenrezensionen auf (beta) 4.3 von 5 Sternen  14 Rezensionen
8 von 9 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Excellent review for educated General public 9. Juni 2013
Von Dr Goldie - Veröffentlicht auf
An excellent collection of some of the latest ideas in cosmology. Nothing too heavy. Can be read in one sitting. If you are a fan of SciAm and interested in the ideas behind the multiverse I highly recommend, especially the article by Prof. Tegmark.
13 von 16 Kunden fanden die folgende Rezension hilfreich
3.0 von 5 Sternen Not new material 26. Mai 2013
Von Dr. Lellis - Veröffentlicht auf
This collection of articles may have a publication date of May 2013, but the individual pieces are as old as 2000. I recommend the recent intriguing book on multiverse: Do Parallel Worlds Really Exist? Quantum Theory Says No.
2 von 3 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen A good intro to current thiinking in theoretical physics. 6. November 2013
Von C. Ivie - Veröffentlicht auf
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I am a semi retired teacher but return to the classroom from time to time to teach astronomy and physics. I find this book to be an excellent primer on new theories and concepts in theoretical physics. I recommend it to my students.
1 von 2 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Possibilities in Parallel 5. Juli 2013
Von David R. Criser - Veröffentlicht auf
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For you who have not subscribed to Scientific American, heres a means to catch up on the latest ideas in astrophysics. It is
an exciting time for scientists around the world. Dark matter and dark energy are yet mysteries. What happened before the
big bang? Is ours the only universe? And if so, why is it fine tuned so perfectly for life to exist? What is the latest take on the
meaning of quantum mechanics? And more. Well written articles by people in the know.
2 von 4 Kunden fanden die folgende Rezension hilfreich
4.0 von 5 Sternen Parallel Ideas 7. September 2013
Von Ciphtal - Veröffentlicht auf
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At the moment "Multiverse" is the hotbed of the physics, including many speculative, hypothetical ideas. There are also handful of books dealing with these ideas one way or another. However the uniqueness of this compilation of the SciAm past and newly published papers on the issue, in my opinion, is the balance between pro and cons of the idea as a whole and categorization of the related subjects accordingly.
Even though the book's name sounds little bit intimidating, the content is well organized and the reader can grasp the insight.
When you read a book which is published in 2013 you might not expect to find an article dates back to 1994! Therefore I think that it should have been asked the authors for a review of their original article in the rays of new theoretical, experimental discoveries. On the other hand it shows that our profound, long-standing problems, as far as such context is concerned, are still lingering out there and begging for fresh, brilliant minds to tackle them.
May this book excite such brains for this purpose.
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