- The Great Wall of China is approximately 6,430 Km long (3,995 miles).
- 1 googol is the number 1 followed by 100 zeros.
- Adult humans are the only mammal that can't breathe and swallow at the same time.
- It takes 1,100 watts to power a toaster.
- The humming bird is the only bird that can fly backwards.
- Despite its hump, a camel has a straight spine.
- Fresh apples float because 25 percent of their volume is air.
- Raindrops are not tear shaped (they more resemble the shape of a tiny hamburger bun).
- Fingernails grow faster than toenails.
- In Africa more people are killed by crocodiles than lions.
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