During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
Pierre Jaquet-Droz, a watchmaker, 240 years ago invented a robot that could write, and the parts could be interchanged to say whatever you want.
13
In 1982, a high school student from Los Angeles, California unscrambled the Rubik's Cube in 22.95 seconds.
60
At age 18, the Queen of England was a mechanic for the British Military.
67
No one knows who designed the first American Flag.
45
There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
23
