Satellite tracking software
A free GNU/GPL educational digital photogrammetric workstation
a free cross platform checksum utility, supports 58+ hash algorithms
Intellect Modeling Kit: assisting research, diagnostics, consulting
SJCE - free portable cross-platform graphical chess game, 100% Java.
An open source process simulator
Cross platform GUI for Maxima
TI graphing calculators <-> computer communication software
FOSS Evaluation
This project is no longer active. See vpython.org.