Mk II heat engine made from cans

[millennians]

If you were to invert a wineglass that could seperate water into Hydrogen snd Oxygen, and recombine them, your heat engine could generate static electricity and it would have the same kind of motion that throwing a rock in space would achieve, perpetual... After all, the Earth is doing it!

[441rider]

Very nice! I hope to have as good a result from mine when assembled.

[HanzoHk85]

care to explain how it works

[sciencejunk]

There are many sites on the net that explain this fully, some have nice animations. Basically, the system is air-tight and the air is heated then cooled during each cycle. While hot the air expands pushing the small piston up, while cool it contracts pulling it down. The crank drives a displacer (inside the can) which moves air between the hot and cold ends at the correct time.

I hope this helps.