Physion is a 2D Physics simulation software ideal for educational purposes.Using its tools you can create various physical objects on a scene. You can for example create circles, rectangles, polygons, gears, chains, ropes, balloons and lots of other physics items. You can also connect those items using springs, pulleys, nails and other types of joints. This way you can create various scenes/scenarios which range from simple educational experiments to complex structures and mechanisms. Apart from the classic saving/loading of scenes, Physion also supports uploading/downloading scenes to and from a central repository. Once an interesting scene has been created, the user can upload it to this repository and it will be immediately available for downloading to all other users that are using Physion. Physion also supports scripting with Javascript. This means that the users can write their own scripts and execute them through Physion's scripting engine. Most of the actions that can be...