The Philadelphia Experiment was a secret U.S. Navy project in 1943 that some claim made a ship disappear completely. The experiment aimed to cloak the USS Eldridge from radar detection using electromagnetic fields. In the first experiment, the ship briefly became invisible but the crew became sick. A second experiment allegedly transported the ship from Philadelphia to Norfolk, Virginia before it returned sick and damaged with some crew missing or fused to the metal. The U.S. Navy denies the teleportation claims and tried to cover up the project due to injuries and deaths caused by the intense magnetic fields.