A four-year-old child will, on average, ask about 437 questions a day.
The power of the first lasers was measured by the number of razor blades the laser beams could pass through.
The real name of American film actor Michael Keaton (born 1951) is actually Michael Douglas, but due to the fact that an actor wanted to avoid the name of the older, more famous actor Michael Douglas (born 1944), surname Keaton was chosen in honor of the film actress Diane Keaton.
Electric eels can regenerate their muscles and fins.
Hawaii is the only US state that grows coffee.
Dried bananas have four times more nutrition than fresh ones.
