- Petrol has no specific freezing point (it can freezes at any temperature between -82 and -115C (-180 and -240F).
- When born a baby giraffe is 1.8m (6ft) tall.
- The ideal temperature to fall asleep is between 18-30c (64-86f).
- The hardest substance in the human body is enamel.
- Men change their minds 2 to 3 times more than women (women tend to take longer to make a decision but once they do they are more likely to stick to it).
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