I've heard a perpetual motion machine would be impossible, but then that some people out there believe it is. I was wondering if anyone out there has any thoughts on it..
Perpetual motion and "free energy" discussions
Search PF and you will find many threads that have been closed in a number of forums. As for S&D, any claim of this nature would be reproducible and/or testable by the scientific community; hence there is no need for debate.