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General relativity from A to B Robert Geroch
Publisher: U.Chicago

"General Relativity from A to B" explained to me the meaning of the radar-coordinates (emphasizing operational measurements) and the meaning of the spacetime interval (emphasizing the causal structure). Special relativity had considered only constantly moving reference .. B) General Theory of Relativity. Then Congress would General relativity (GR) predicts two effects caused by the Earth and its rotation. However, we are still testing out all its predictions. The process of temporal becoming in my own consciousness smacks against the claims of B-theorists. However, you are using the converse of this statement. NASA would submit a budget to Congress with zero dollars for the mission. General relativity is said to have reintroduced absolute simultaneity into physics. Of course general relativity is really about semi-Riemannian geometry [though physicists like to refer to it as merely 'Riemannian'], so you would want to also refer to texts like O'Neill's Semi-Riemannian Geometry With Applications to Relativity. Cosmologist Lawrence Krauss writing in the Wall Street Journal says that Hawking does not go far enough, but his argument is based on a misunderstanding of energy in general relativity. A decade after his paper on special relativity, Einstein published his general relativity that addressed accelerated reference frames and provided a new theory of gravity. I disagree because it is in fact zero for closed universes with positive curvature too. The approach of the Christian apologist is to argue that if B is the big bang, then the only cause, A, available is God, because nothing physical can precede the big bang. You are saying that if the energy is zero then it is flat. Gravity Probe B has confirmed two of the most interesting effects predicted by Einstein's General Theory of Relativity.