FlightGear Flight Simulator: free open-source multiplatform flight sim
C++ library for half precision floating point arithmetics.
Simulate chemical processes using advanced thermodynamic models
Computer Algebra System written in Common Lisp
A collection of packages providing extra functionality for GNU Octave
General Mission Analysis Tool
EPRI Distribution System Simulator
fast C++ library for linear algebra & scientific computing
A planetarium software that shows a 3D simulation of the night sky
GPS log file viewer and analyzer
Robocode is a programming tank game for Java
Library to control radio transceivers and receivers
32/64 bit multi-platform Ethernet S7 PLC communication suite
Open source Health IT for the planet
Installable / Portable Python Distribution for Everyone.
Model Railway CAD program
BBMap short read aligner, and other bioinformatic tools.