1)   1D Heat Transfer 2.1
The 1D Heat Transfer software is used for to study one-dimensional heat transfer (steady and unsteady states). It can be used for the geometries: wall, Lx = width; long cylinder, Lx = length; sphere, Lx = R/3 and semi-infinite wall.

 2)   Five Cellular Automata 5.69
Software for exploring five cellular automata: q-state Life (a generalization of Conway's Life), the Belousov-Zhabotinsky Reaction, Togetherness, Viral Replication and Diffusion-Limited Aggregation.

 3)   Diffusion, The screen saver 1.0
Balls move around your screen, bouncing off each other. You can control their number and speed or let your computer make these decisions for you.