- Earth's sky is purple, our eyes just see it as blue.
- Sound travels 10 times faster through granite than air.
- Children have more taste buds than adults.
- A pelican can hold more food in its beak than its belly.
- Bananas grow pointing upwards.
- A human being could swim through the blood vessels of a blue whale.
- Different names for the number 0 include zero, nought, naught, nil, zilch and zip.
- Elevenses is a break for light refreshments taken at 11AM in England.
- What comes after a million, billion and trillion? A quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion and undecillion.
- Room temperature is defined as between 20 to 25C (68 to 77F).
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