- More people are killed by hippopotamuses then by lions, elephants and water buffalos combined.
- A cat uses its whiskers to determine if a space is too small to squeeze through.
- Black on yellow are the 2 colors with the strongest impact.
- More than 1,000,000 Earths could fit inside the Sun.
- That in the 17th century the value of pi was known to 35 decimal places (today to 1.2411 trillion).
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