- Your brain uses 10 watts of energy to think and does not feel pain.
- The rarest type of diamond is green.
- A pearl can be dissolved by vinegar.
- Ants don't like baby powder (talcum powder).
- All of the cobble stones used to line the streets in New York were originally stones found in the hulls of Belgian ships ballast.
- 20% of all the oxygen you breathe is used by your brain.
- Salt used to be a currency.
- Here is Pi written to 100 decimal places:
3.1415926535897932384626433832795028841971693993751
058209749445923078164062862089986280348253421170679.
- The Earth is struck by lightning over 100 times every second.
- The number of times a cricket chirps in 15 seconds, plus 37, will give you the current air temperature.
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