Three Roads to Quantum Gravity by Lee Smolin

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The Holy Grail of modern physics is a theory of the universe that unites two seemingly opposing pillars of modern science: Einstein's theory of general relativity, which deals with large-scale phenomena (planets, solar systems and galaxies), and quantum theory, which deals with the world of the very small (molecules, atoms, electrons). In Three Roads to Quantum Gravity, Lee Smolin provides the first concise and accessible overview of current attempts to reconcile these two theories in a final "theory of everything." This is the closest anyone has ever come to devising a completely new theory of space, time and the universe to replace the Newtonian ideas that were the foundation of all science until the beginning of the twentieth century. Lee Smolin, who has spent his career at the forefront of these new discoveries, presents for the first time the main ideas behind the new developments that have brought a quantum theory of gravity in sight. He explains in simple terms what scientists are talking about when they say the world is made from exotic entities such as loops, strings, and black holes. As he does so, he tells the fascinating stories behind these discoveries: the rivalries, epiphanies, and intrigues he witnessed firsthand.Science Masters Series

About Lee Smolin

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Lee Smolin is a theoretical physicist who has made influential contributions to the search for a unification of physics. He is a founding faculty member of the Perimeter Institute for Theoretical Physics. His previous books include The Trouble with Physics, The Life of the Cosmos and Three Roads to Quantum Gravity.
Published March 18, 2008 by Basic Books. 260 pages
Genres: Science & Math, Computers & Technology, Professional & Technical. Non-fiction

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The New York Times

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There are now over a thousand theorists around the world working on various aspects of quantum gravity, Smolin notes, most of them engaged in string theory.

Aug 19 2001 | Read Full Review of Three Roads to Quantum Gravity

The Guardian

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Quantum theory says that something similar should also be true of gravity: just as there is a quantum theory of light, so there should be a quantum theory of gravity.

Feb 17 2001 | Read Full Review of Three Roads to Quantum Gravity

Publishers Weekly

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Aimed at beginners, this careful treatment of the search for a single theory that brings together relativity and quantum theory will draw in potential explorers.

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London Review of Books

The old notions of space and time are currently being turned upside down by theoretical physicists in their attempt to reconcile the two great pillars of 20th-century physics: quantum theory and Einstein’s general theory of relativity.

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