FRIDA (flexible rapid interactive data analysis) is a generic program for manipulating, fitting, and plotting x,z,y data. It is primarily aimed at spectral analysis, especially in neutron scattering. Note: project has moved away from sf.net.
A combination of useful tools for High School classes, including math classes ranging from prealgebra to calculus, and science classes ranging from IPS to AP Physics.
LabDiary is a program for managing laboratory experiments in a sophisticated way. It is very easy to use - you can link experiments logically with each other, associate files to an experiment and structure all your data.
RYUON : many-particle simulation suite
Ruby-Newton is a Ruby wrapper for the NewtonGameDynamics physics engine ( http://newtondynamics.com/ ) It brings object-oriented real-time animated physics simulations to Ruby-enabled applications (e.g. 3D modeling tool with interactive scripting support
This is a recopilation of programs programmed by Eliot Hijano using either Java or Ruby. All the programs have something in common with both physics and Maths and are explained mathematically and physically in its own pdf.
Tara is a (hopefully) elegant and concise N-body integrator written in Ruby with C extensions.