a graphical user interface for the PDF Toolkit (PDFtk)
Earth orbits and satellite coverage display in 3D on your laptop.
PyMOL is an OpenGL based molecular visualization system
Multiplatform Ham Radio APRS and Mapping Program
Tinger Calc is a powerful scientific calculator environment.
XNBC is a graphic application to simulate biologic neural networks.
Create Lazy to-do list just by typing anywhere.