- When lightning strikes it can reach up to 30,000 degrees celsius (54,000 degrees fahrenheit).
- Chinese mathematics developed around the 11th century BC and included important concepts related to negative numbers, decimals, algebra and geometry.
- Brazil covers 50% of the South American continent.
- England's first great industry was wool.
- Catoptrophobia is the fear of mirrors.
- Thin skinned lemons are the juiciest.
- Before 1913 parents could mail their kids to Grandma's through the postal service.
- The yoke of an Ostrich egg is the largest cell in the world.
- Cheetahs can accelerate from 0 to 70 km/h (43mp/h) in 3 seconds.
- The wristwatch was invented in 1904.
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