In October 1943, the US Navy conducted a secret experiment of artificial strong magnetic field in Philadelphia, the famous "Philadelphia Experiment", which successfully put a destroyer and all the crew into another space. During the experiment, the experimenters activated pulse and non-pulse devices to form a huge magnetic field around the ship. Then the whole ship was shrouded in a ball of green light, and the ship and the crew began to disappear from people's sight. When the experiment ended, the ship had been moved to Norfolk, 479 kilometers away... His granddaughter tried to revive the World War II "Philadelphia Experiment".........