Officially, the space shuttle program was known as the Space Transportation System (STS). The first shuttle was actually the Space Shuttle Orbiter Enterprise, named after the famous star ship in the Star Trek television series. It was a drop-test vehicle released from a Boeing 747 in midflight. Enterprise made five successful free-flight tests prior to Columbia’s history-making maiden flight into space.
Windmills always turn counterclockwise.
A hedgehog’s heart beats 300 times a minute on average.
Camels have three eyelids to protect themselves from blowing sand.
The placement of a donkey’s eyes in its’ head enables it to see all four feet at all times.