Nazi Bell / die Glocke

Die Glocke , 'The Bell ) was a purported top-secret scientific technological device, wonder weapon, or Wunderwaffe developed in the 1940s in Nazi Germany. Rumors of this device have persisted for decades after WW2 and were used as a plot trope in the fiction novel Lightning by Dean Koontz (1988). First fully described by Polish journalist and author Igor Witkowski in Prawda o Wunderwaffe (2000), it was later popularized by military journalist and author Nick Cook, who associated it with Nazi occultism, antigravity, and free energy suppression research. Mainstream reviewers have criticized claims about Die Glocke as being pseudoscientific, recycled rumors, and a hoax. Die Glocke and other alleged Nazi "miracle weapons" have been dramatized in video games, television shows, and novels.

Aviation author and historian Robert F. Dorr characterizes Die Glocke as among "the most imaginative of the conspiracy theories" that arose in post-World War II years, and typical of the fantasies of magical German weapons often popularized in pulp magazines such as the National Police Gazette.