Hitler's Anti-Gravity Machine

As legend has it, Hitler and his team of Nazi scientists developed a secrete anti-gravity weapon capable of time traveling called the "Die Glocke" or "The Bell." The rumors of this device began in the 1960s book Morning of the Magicians and were later recycled in 2000 for Prawda o Wunderwaffe (The Truth About The Wonder Weapon) by Igor Witkowski and Nick Cook's 2001 novel The Hunt for Zero Point. So is this wonder weapon an actual machine or just a sci-fi hoax? Historian Dr. Mark Felton uncovers the conspiracy theory behind the existence of the anti-gravity machine.