- The word 'lethologica' describes the state of not being able to remember the word you want.
- Less than 3% of the water on Earth is fresh.
- Pop corn was invented by the Aztec Indians.
- Lizards communicate by doing push-ups.
- Every square inch of the human body has an average of 32 million bacteria on it.
- Tug-of-war was an Olympic sport in the early 1900s.
- Camels can drink 94 litres (25 gallons) of water in less than 3 minutes.
- The Super Soaker was designed and invented by a NASA engineer.
- The $ sign was introduced in 1788.
- The revolving door was invented in 1888.
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