Stirling engines are super-cool innovation-- well a very old innovation. This project (
http://www.physics.sfasu.edu/astro/courses/egr112/StirlingEngine/stirling.html ) shows how to build a stirling engine from pop cans and powered by a tea light. For the doubting Thomases: here is
an MPEG of the Stirling Engine at work.
tags :
engineering viridian green engines