What happens when you give boys at heart a nuclear bomb and an unlimited budget? You get Pascal B which is when the U.S. military put a bomb in a 500-foot shaft and covered it with a 2-ton steel plate. On Aug. 27, 1957 they set it off. Why? Why not?
One frame of a high speed camera caught the plate going upward at an estimated speed of 150,000 mph. It was never found. Most think it was vaporized by atmospheric friction. Some, however, think it was the first man-made object to be sent into space and is in orbit somewhere.