- Sharks never stop moving even when they sleep or rest.
- An individual blood cell takes about 60 seconds to make a complete circuit of the body.
- 90% people depend on alarm clocks to wake up.
- Room temperature is defined as between 20 to 25C (68 to 77F).
- Greek philosopher and mathematician Pythagoras lived around the year 500 BC and is known for his Pythagorean theorem relating to the three sides of a right angle triangle: a^2 + b^2 = c^2.
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