Active projects:
Stereo Panorama Converter (shareware)
Stereo Panorama Converter allows you to split and join 360x180 degrees stereographic panorama imagesDragon Draughts (freeware)
Dragon plays 10x10 international draughts at grandmaster level.
Older projects:
Exact backgammon bearoff (freeware)
A computer program that does exact computations in backgammon bearoff positions.The onager simulator (freeware)
The onager simulator calculates all aspects of a roman onager, such as the projectile acceleration during launch and almost 20 other physical parameters that you may need to design an onager.The baby onager project
Photo's of a small onager (roman catapult)