Reinventing Gravity

Reinventing Gravity

A Physicist Goes Beyond Einstein

Book - 2008
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Einstein's gravity theory--his general theory of relativity--has served as the basis for a series of astonishing cosmological discoveries. But what if, nonetheless, Einstein got it wrong?

Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter--a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place--and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have.

Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The cap#65533;stone to a storybook career--one that began with a correspondence with Einstein and a conversation with Niels Bohr--Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work chal#65533;lenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence.

This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.

Published: New York : Smithsonian Books/Collins, c2008.
Edition: 1st ed.
ISBN: 9780061170881
0061170887
Branch Call Number: 530.143 MOF
Characteristics: xiv, 272 p. :,ill. ;,24 cm.

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John_M
Apr 07, 2016

Moffat takes us beyond Einsteins theory of General Relativity into the world of modern physics of dark matter and the multiverse, both of which Moffat feels are likely not the answer to explain modern cosmological issues. He is plugging his own theory in this book. I am surprised that I have not heard more of his theory before as I follow the world of modern physics as a layman. At times Moffat comes across as a bit dismissive of some of the theories which are better publicized. Perhaps his theory is not catchy enough for the press.

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bistace
Mar 13, 2011

While some of this book is very technical and academic, John Moffat does a good job in laying it out in layman terms. It is a very good look at some of the assumptions that modern day physics is making and why they should take a second look. Just because most people believe a theory doesn't mean it's correct.

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ANDREW_CUMBERLAND
Jun 28, 2010

This is a recent lecture given by John [Dec. 2009]

http://www.youtube.com/watch?v=X6t_SWTCe-A&annotation_id=annotation_903431&feature=iv

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