2D & 3D TeX-Aware Vector Graphics Language
Satellite tracking software
Static and Dynamic Structural Analysis of 2D and 3D frames.
Virtual X-Ray Imaging Library on GPU
Routines for wavefront propagation in IDL, Matlab, and Python
Scanning Probe Microscopy Controller and Data Visualization Software
*nix Sidereal Clock
Portable OS X FOSS applications
Finite Element Method on 3D Meshes
open source python packages for X-ray MicroLaue Diffraction analysis
a browser based ballistics calculator for arrows and bullets