- The only continent without reptiles or snakes is Antarctica.
- Red light has the highest wavelength.
- African elephants only have 4 teeth.
- All pilots on international flights identify themselves in English regardless of their country of origin.
- 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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