Check out www.highpiled.com for a neat little free game with cool physics.  Apparently it was made in just 17 hours.  The development time was probably so small due to using an existing phsyics code library.

Anyway all you do is try to make a giant stack of blocks and watch them tumble down when you get it wrong.  You can also make little Stone Henges, Pyramids etc. and test the physics of block as they tumble down the “steps” etc.  Pretty cool.

 highpiled

 

Jake

I'm an Indie game developer with a couple of titles under my belt. I've been programming for 23 years on a variety of platforms. Currently I'm using BlitzMax, which is great.