v2.4 [Oct 30, 2011] OpenSim 2.4 includes faster and more robust tools for Inverse Dynamics and Inverse Kinematics, new visualization tools, enhanced access for API users, and several usability improvements.
Generate 3D STL files of gears for real printing
IrriPro
Let your Children learn easily
R Project: Analyser for biochemistry students and scientists
A free image curve extract tool that is simple and easy to use