Program 46: Engine of Nature. The Carnot engine, part one, beginning with simple steam engines. A thirty-minute on-demand streamed physics lecture / animated presentation hosted by Professor David Goodstein of the California Institute of Technology as part of the Annenberg / CPB series The Mechanical Universe and Beyond.

http://www.learner.org/vod
/index.html?sid=42&pid=616&po=46

This site requires cable modem (384K) or better speed connection to the internet and free registration with Annenberg / CPB.

The Virtual Laboratory (G. Bothun), University of Oregon, Eugene, OR.

http://jersey.uoregon.edu/vlab/
Thermodynamics/index.html

This lesson looks at the time it takes for a system to come into thermodynamic equilibrium and observes the diffusion process.

Program 47: Entropy. The Carnot engine, part two, with profound implications for the behavior of matter and the flow of time through the universe. A thirty-minute on-demand streamed physics lecture / animated presentation hosted by Professor David Goodstein of the California Institute of Technology as part of the Annenberg / CPB series The Mechanical Universe and Beyond.

http://www.learner.org/vod/
index.html?sid=42&pid=617&po=47

This site requires cable modem (384K) or better speed connection to the internet and free registration with Annenberg / CPB.

http://www.stirlingengine.com

from the American Stirling Company.

This site is for the American Stirling Engine Company, and has lots of information about different Stirling engines and several animations which the company produces. Here are two other links to Stirling Engines Sites: The English Stirling Engine Page by Koichi Hirata and Stirling Motor! by Ralf Moros. Both are very good, but Stirling Motor! is in German and so the activities are not available in English.