A history of perpetual motion machines...

[headscratcher4]

Thought some of you would find this interesting...

http://www.phact.org/e/dennis4.html

[arcticpenguin]

Yes, interesting. That's from Eric Krieg, he's big on investigating PM stuff.

[Iconoclast]

There's also The Museum of Unworkable Devices (http://www.lhup.edu/~dsimanek/museum/unwork.htm), which has lots of cool diagrams of perpetual motion machines. I must admit that I hardly ever find the fatal flaw at first glance when viewing the drawings of these machines.

[a_unique_person]

These lists go on and on and on and on......