Let's say there's a wormhole entrance on the floor of my room, and the exit would be on the ceiling. If I drop a ball on it, it would "fall forever". Am I right on this one? So, if it falls forever, I could throw some water, and use its motion to turn a gear that would generate electricity. In that case, I would have "endless free energy" being created. I know it screams "troll-physics", but I honestly can't see the flaw in this plan (except the fact we don't have the technology to build it). Why is that not going to work? Thanks in advance for any explanations, and sorry for my limited knowledge in physics! PS: Yes, I got this idea while playing Portal.