- The expression to 'knuckle down' originated from playing marbles (players used to put their knuckles to the ground for their best shots).
- The moon is 27% the size of the Earth.
- Every living thing on the Earth contains carbon.
- Gentoo penguins propose to their life mates with a pebble.
- A housefly hums in the key of F.
- Archimedes of Syracuse lived around the year 250 BC and played a large role in the history of geometry including a method for determining the volume of objects with irregular shapes.
- Are you terrified that a duck is watching you? Some people are. That is anatidaephobia.
- Americas top selling ice cream flavour is vanilla.
- The smallest ten prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.
- March 14 is 'save a spider day'.
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