What is the First Law of Thermodynamics:The increase in the internal energy of a thermodynamic system is equal to the amount of heat energy added to the system minus the work done by the system on the surroundings.
Principle of Conservation of Energy:Energy can neither be created nor destroyed, it can only change from one form to another form.
Just a few links and stuff for perpetual motion, man I love it when we can violate the laws of thermodynamics at will. It is hard to believe, but there are still people around who try to fleece money from others with the promise of "free energy" with their "over unity" devices. Check out the "new" machine over at http://www.steorn.com/, it is interesting that they are happy to take your money, but not let you examine the machine.
- Strange Horizons article on this nonsense.
- Wikipedia article on the same. Here is another wikipedia about the history of perpetual motion machines.
- The Museum of unworkable devices has gotta have one of the best overall summaries around, as well as a great set of links.
- Don't quite know what to make of this guy