Open Wonderland, Marbleous module

This is me playing about with the physics simulation marbleous for open wonderland.

An extract from the description: "Marbleous simulates a ball rolling down a track. You can reconfigure the track and also play back the animation using a timeline slider to inspect the values for velocity, acceleration, potential and kinetic energy at any moment in time".

It took a couple of attempts to get it right but it is so much fun, you should give it a go!