The Stirling Engine

http://www.ssrsi.org/sr2/Heat/stirling.htm


http://www.howstuffworks.com/stirling-engine.htm

http://www.ent.ohiou.edu/~urieli/stirling/stirling.html

http://www.sesusa.org/links.htm

http://www.stirlingengines.org.uk/

http://www.physics.sfasu.edu/astro/courses/egr112/StirlingEngine/stirling.html

http://peswiki.com/energy/Directory:Stirling_Engines

http://www.instructables.com/id/The-Sterling-Engine-absorb-energy-from-candles-c/

http://www.origin.popularmechanics.com/science/research/4286850.html?series=60&page=8&?series=60