- On average you blink 25,000 a day.
- Halley's comet passes the Earth every 76 years (the next time it will return will be 2062).
- Franklin Mars invented the Snickers Bar in 1930.
- In the 17th century Galileo Galilei and Johannes Kepler made important discoveries relating to planetary motion and orbits..
- The expression to 'knuckle down' originated from playing marbles (players used to put their knuckles to the ground for their best shots).
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