The Philadelphia Experiment is an alleged military experiment that was carried out by the U.S. Navy in the Philadelphia Naval Shipyard sometime around October 28, 1943. During the experiment, the U.S. Navy destroyer escort USS Eldridge was reportedly rendered invisible and teleported to Norfolk, Virginia for several minutes before reappearing back in the Philadelphia shipyard. While conspiracy theorists insist that the events actually occurred and were covered up by the US Government, the U.S. Navy maintains that no such experiment was ever conducted.