In 1943, whispers spread of a phenomenon of incredible nature coming from the Philadelphia naval yard, in wartime secrecy. The tale, recounted as the Philadelphia Experiment, stated that the U.S. Navy made the USS Eldridge, a battleship, vanish.   Not just out of sight, but out of being altogether.   It is said that the vessel was swept through space and time, returning miles from where it had been. Crew were left stunned, some of them supposedly fused with the sides of the vessel, victims of forces beyond comprehension. Fiction or reality, the...