Lego motors that run on air-
http://jalopnik.com/5106221/lego-pneumatic-car-engines-now-for-sale

BillL

When I was a kid, Legos were just little colored blocks. Now it's a complete engineering prototyping platform. They have robotics, pneumatics, and I don't even know what else. I wouldn't be surprised if there was a satellite in orbit made out of Lego.

Cool stuff.

Tim.