- Mercury is the only metal that is liquid at room temperature.
- Volleyball was invented in 1895.
- Ancient Egyptians used geometry principles as far back as 3000 BC, using equations to approximate the area of circles among other formulas..
- Ice skating rinks always go counter clock wise (for the majority of people that are right handed needing to hang onto the rail).
- A cat can keep purring while inhaling and exhaling.
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