- Britain was the first country to use postage stamps.
- A blue whale can weigh as much as 30 elephants and as long as 3 large tour buses.
- If you doubled one penny every day for 30 days, you would have $5,368,709.12.
- Clothes dried outside smell better because of a process called photolysis (sunlight breaks down compounds that cause odor).
- Cheetahs can accelerate from 0 to 70 km/h (43mp/h) in 3 seconds.
- The water in the Dead Sea is so salty that its easier to float than sink.
- Blonde beards grow faster than darker beards.
- The average Americans diet consists of 55% junk food.
- The world's first roller coaster opened in 1884 at Coney Island New York.
- Ancient Egyptians used geometry principles as far back as 3000 BC, using equations to approximate the area of circles among other formulas.
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