
Access a 2D simulation environment and draw cartoon characters and create interactive scenes. Add circles, boxes, polygons, gears, planes, ropes, and other items, rotate, move, and cut them, and apply physics to them. Tweak the friction, gravity, refraction, attraction and other parameters.
Algodoo is our new software and replacement for Phun. It is a free game-like 2D physics sandbox where you can play with physics like never before. The playful synergy of science and art is novel, and makes Phun as educational as it is entertaining.
SkyChart III is a planetarium and telescope control program that shows the sky from any location, past or future, on Earth or beyond.