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# Reinventing Gravity: A Physicist Goes Beyond Einstein

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 ...more

Hardcover, 288 pages

Published
September 30th 2008
by Smithsonian
(first published September 20th 2008)

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## Community Reviews

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Thus, the author wants to simplify the current paradigm of gravity. To do this he develops a modified gr ...more

I understood the philosophy of science aspects (e.g., emphasis on testable, fa ...more

John Moffat spends the first half of this book detailing the history regarding mans understanding of gravity. His style is patient, grounded and understandable to laymen.

Archimedes, Newton and Einstein all conceived concepts of gravity that were generations ahead of their time. The theories these geniuses put forward have been used in the development of all types of ...more

Nowadays, we can take it for granted that when Newton, or Kepler, or Copernicus, or Ei ...more

Il s'ouvre sur une très belle histoire de la science physique. De Newton à Einstein en passant par Maxwell, on saisit bien l'enjeu fondamental d'unifier les concepts de physique. On y explique comment sont apparu les théories modernes du Big Bang, de l’expansion de l’univers et de la mécanique quantique. On y retrouve une certaine ironie dans l’exposition de concepts qui n’ont pas tenu la route (comme l’éther) mais qui faisaient office de vérité pendant un temps.

Le but ...more

Moffat is particularly motivated by the problem of dark matter. Rather than accepting the orthodox view ...more

The first half is basically a brief history of gravity. Obviously it's important to have that background, and it's quite well done, but anyone reading this book is probably going to know most of it already, and it's covered in many other books.

The rest of the book talks about cosmological anomalies and various alternative theories that try to account for them. We don't get into the author's MOG or MSTG or whatever it's real name i ...more

Moffat unfairly criticizes Inflation theories for inventing a new particle, the Inflaton. But in modern (quantum) field theory, every field has a particle associated with it. When Moffat gets around t ...more

What I liked most was to find that a real physicist has conceived a theory that avoids dark matter, dark energy, black holes, and possibly even the Big Bang. As a scientist, but not a physicist, I have not felt comfortable with these concepts. It appears that Dr. Moffat's new theo ...more

however, I'm interested enough in how he came up with said theory and his proofs and justifications to keep reading. and also I'm doing a presentation on modern gr ...more

really exist and that his own modified gravity theory(MOG) can explain many of the mysteries in the universe. Is Moffat right? Probably not, but at least he's not afraid to throw out some new ideas in light of the apparent failure of string theory to provide explanations for the oper ...more

AFAIK, the General Theory predicts all know experimental results, and is accepted by virtually all workers in the field. Except for this author. The non-specialist reader should be aware the the last two thirds of the book represents a distinctly minority position among workers in ...more

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Oct 18, 2013 05:14AM