- Before emojis, there were emoticons, which are icons created from keyboard characters.
- The most valuable nutrients of a potato are its skin.
- Ostriches don't bury their heads in sand.
- The Earth experiences over 50,000 earthquakes a year.
- 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).
- Before 1863 the postal service in the US was free.
- An electric eel can release a charge powerful enough to start 50 cars.
- There are more stars in the sky than grains of sand on earth.
- Perth is Australia's windiest city.
- There are no rivers in Saudi Arabia.
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