| Physics and Gravity | ||
| GalaxyDynamics.org | Artistic supercomputer simulations of galaxy dynamics set to music. | |
| Alternatives to Dark Matter | Dark matter isn't the only possible explanation! | |
| NBodyLab | N-body laboratory. Allows running hardware accelerated n-body simulations over the web. | |
| General Relativity Orbits | Java applet to investigate orbits in strongly curved spacetime. | |
| Gravity Probe B | Was Einstein right? Amazing test of the "gravitomagnetism" aka "frame dragging" effect. | |
| Astronomy | ||
| Astronomy Picture of the Day |   | |
| Clear Sky Clocks | Up to date astronomy weather and seeing forecasts. | |
| Sky and Telescope | For space enthusiasts. | |
| Bad Astronomy | Great site that sets the record straight on a lot of astronomy misinformation. | |
| Andy's Shot Glass | Astronomy and Astrophysics for Non-Gazillionaires. | |
| Math and Programming | ||
| MagicCube4D | A fully functional 4D analog of a Rubik's cube. My all time favorite puzzle and what I consider a successfully elegant interface by Melinda Green. | |
| MagicCube5D | Charlie and I recently wrote a fully functional 5D analog of Rubik's cube. | |
| 120 Cell Explorer | Explore a number of the symmetries of the "120 cell", often considered the 4D analog of the dodecahedron. | |
| Jenn | For visualizing Coxeter polytopes. Awesome! | |
| www.opengl.org |   | |
| Friends and Colleagues | ||
| My Home Page | Like Rubik's Cubes? Motorcycle Racing? Giant Chess Sets? | |
| misterFOO.com | Friend and office mate who helped contribute to G3D coding. | |
| Austin Digital, Inc. | The coolest flight data analysis company in the world! | |
| Got a Dreamcast? |   | |