- Wind doesn't make a sound until it blows against an object.
- Fire usually moves faster uphill than downhill.
- Whale songs can be used to map out the ocean floor.
- Ancient Romans thought strawberries could cure bad breath and chronic fainting.
- Sound travels 15 times faster through steel than air.
- On average 22% of all restaurant meals include potato chips.
- In zero gravity, a candle's flame may appear circular and blue.
- A fifteen-year-old boy invented earmuffs in 1873.
- Rhinoceros have 3 toes on each foot.
- An average person will spend 25 years asleep.
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