- In 1642 French mathematician Blaise Pascal invented the mechanical calculator.
- On your birthday you share it with 9 million others.
- 20% of all the oxygen you breathe is used by your brain.
- A shark's teeth are literally as hard as steel.
- A King Cobra is the biggest of all poisonous snakes and can grow to over 4 metres (13 feet) long.
- Your foot and your forearm are the same length.
- Your head contains 22 bones.
- There are over 10 million bricks in the Empire State Building.
- Dolphin's can detect underwater sounds from 24 km (15 miles) away.
- The croissant was invented in Austria.
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