The width of a tornado can range from less than ten yards to more than a mile.
The speed of sound must be exceeded to produce a sonic boom.
The size of a red blood cell is 708 microns. This is equivalent to one millionth of a meter.
The USS Abraham Lincoln has five gymnasiums on the ship and a basketball league with 22 teams.
The world's deepest gold mine is seven kilometers below the surface of the Earth.
The world's deepest gold mine is... Amazing facts
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