In October 1943, a US Navy ship was outfitted with electronic gear allegedly based on a design by Nikola Tesla. The object of the experiment was to render the ship invisible. According to most accounts, the experiment did make the ship invisible, and also suddenly transported it 200 miles away to Norfolk harbor, where it materialized briefly, and then re-materialized minutes later back in Philadelphia. When the crew came off the ship, they were all incurably insane. This experiment has spawned a great deal of literature.