We have two questions on this site about perpetual motion machines.
- Solar energy without the sun: Super LED light on top of solar panels?
- Getting power from an innovative new mechanism
Both questions were heavily downvoted (good for us!) but neither question was closed, apparently because the connection to energy is sufficient to be considered on-topic. Still, this question deserves only one kind of answer:
No, you cannot due to the second law of thermodynamics. No, you cannot get more energy out than you put in. No, you cannot invent a perpetual motion machine.
Do we want to preserve these questions, or should they be deleted from the site?