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Hugh Bray : Update on Dark Matter, Spiral Galaxies, and the Axioms of General Relativity (Sep 24, 2010 4:25 PM)

We will give an update on our last talk on a new connection between differential geometry and astrophysics which involves a model for dark matter and a possible explanation for barred spiral patterns in galaxies. We will also briefly discuss the Tully-Fisher relation, a mysterious experimental fact relating the visible mass of a galaxy to the speed of the stars in the galaxy, which to this point defies a convincing theoretical explanation.

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