Algodoo

Use the left and right arrows to set the desired speed of the unicyclist.

This scene uses two feedback loops. The first loop automatically adjusts the wheel speed so that the seat post tends to be upright. The second loop adjusts the tilt of the unicyclists torso in order to maintain a constant speed. The torso adjustment is a little trickier than it looks because a constant torso angle results in constant acceleration (ever increasing speed).

In the original scene the user controlled the torso angle. In this scene you set the speed and the torso is adjusted automatically.

Rev A - Lowered gain because jerky movement on some computers.