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Solving Einstein's Equations in Three Dimensions - http://www.theory.caltech.edu/people/patricia/test/Einstein3.html#Einstein31
Mathematica notebook showing how to plot light cones in two plus one spacetime dimensions with a point mass. By Patricia Schwarz. |
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Why Time is Absolute, and Relative, But Never Universal - http://home.pacbell.net/skeptica/time.html
Article by Vincent Sauvé elaborating upon a materialist view of the absolute and relative nature of time. |
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Inertia Manipulation Through Metric Patching - http://arxiv.org/abs/gr-qc/0106003
E-print which presents the exact solution for the stress-energy tensor of a spherical matter shell of finite thickness that will patch together different metrics at the boundaries of the shell. By David Waite. |
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Are There Pictorial Examples of Covariant and Contravariant Vectors? - http://arxiv.org/abs/gr-qc/9807044
Present pictorial means of distinguishing contravariant vectors (or simply vectors) from covariant vectors (or linear forms). By Bernard Jancewicz (University of Wroclaw). |
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Gravitomagnetic Effects - http://arxiv.org/abs/gr-qc/0407116
Introductory article by Gerhard Schäfer (Jena University) about the ways that rotating bodies affect spacetime (and hence the propagation of light and particles in free fall) in their vicinity. |