- Minus 40C is exactly the same temperature as minus 40F.
- 45% of people use mouthwash daily.
- The diameter of Earth is 12,756 km (7,926 miles).
- The Cambodian alphabet has 74 letters.
- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14)..
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