[quote author=Fu-Kwun Hwang link=topic=23.msg1898#msg1898 date=1194229806]
Related flash animations found on the web

[b]Carnot Cycle[/b]
http://www.cs.sbcc.net/%7Ephysics/flash/heatengines/Carnot%20cycle.html


[b]The 2 Stroke Engine[/b]
http://www.cs.sbcc.net/%7Ephysics/flash/heatengines/2stroke.html


[b]The 4 Stroke Engine[/b]
http://www.cs.sbcc.net/%7Ephysics/flash/heatengines/4stroke.html


[b]The Stirling Engine [/b]
http://www.cs.sbcc.net/%7Ephysics/flash/heatengines/stirling.html

[/quote]

I have a question..
Some heat out in cold body and after some time, the cold body move back. And pitson down. Why?