Inertia Manipulation Through Metric Patching
- 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.
- http://arxiv.org/abs/gr-qc/0106003

Gravitomagnetic Effects
- 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.
- http://arxiv.org/abs/gr-qc/0407116

Why Time is Absolute, and Relative, But Never Universal
- Article by Vincent Sauvé elaborating upon a materialist view of the absolute and relative nature of time.
- http://home.pacbell.net/skeptica/time.html

Solving Einstein's Equations in Three Dimensions
- Mathematica notebook showing how to plot light cones in two plus one spacetime dimensions with a point mass. By Patricia Schwarz.
- http://www.theory.caltech.edu/people/patricia/test/Einstein3.html#Einstein31

Are There Pictorial Examples of Covariant and Contravariant Vectors?
- Present pictorial means of distinguishing contravariant vectors (or simply vectors) from covariant vectors (or linear forms). By Bernard Jancewicz (University of Wroclaw).
- http://arxiv.org/abs/gr-qc/9807044