- The woodpecker can hammer wood up to 16 times per second.
- Britain was the first country to use postage stamps.
- Diamonds are the hardest substance known to man.
- Americans eat 35,000 tons of pasta a year.
- Coffee is the most popular beverage worldwide with over 400 billion cups consumed each year.
- All the people on Earth could fit into a 1 km cube.
- The atomic symbol for iron is Fe (the original name for iron was Ferric).
- The word 'underground is the only word that begins and ends with the letters 'und'.
- A lemon contains more sugar than a strawberry.
- Hypnotism is banned in public schools in San Diego (U.S.).
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