- The word fortnight is a contraction of the 2 words 'fourteen nights'.
- Sharks can sense a drop of blood from 4km (2.5miles) away.
- It takes an interaction of 72 muscles to produce human speech.
- Agoraphobia is the fear of wide open spaces.
- Fresh apples float because 25 percent of their volume is air.
- The 'you are here' arrow on maps is called an ideo locator.
- The water signs are Cancer, Scorpio, and Pisces.
- The moon is 27% the size of the Earth.
- It takes around 200 muscles to take a step.
- 1 billion snails are served in restaurants each year.
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