The Philadelphia Experiment at the Naval Shipyard

The "Philadelphia Experiment" is an enduring urban legend that claims a 1943 U.S. Navy experiment at the Philadelphia Naval Shipyard rendered the destroyer escort USS Eldridge invisible and teleported it. The story originated in the late 1940s and 1950s from letters and later books, and has been widely debunked by historians and the Navy, though it remains a popular Philadelphia-associated legend. The tale is specifically tied to the Philadelphia Naval Shipyard as the purported location of the event.