Open source cross-platform Java Visual Traceroute
Scanning Probe Microscopy Controller and Data Visualization Software
Open Source Solid Modeling CAD
Asphyre is a cross-platform framework for Delphi and FreePascal.
Atari 2600, C64, Python, 3D engines and rock'n roll
gMol molecular graphics
Alignments in Rotating Cylinder / 3D
An 8 bit emulator created on the scratch, including an assembler.
Organizing the Knowledge of Humanity