- The first human-made object to break the sound barrier was a whip.
- That in the 17th century the value of pi was known to 35 decimal places (today to 1.2411 trillion).
- At birth dalmations are always white.
- 75% of the U.S.'s tart cherries come from Michigan.
- Polar bears have black skin.
- Employees of the Vatican pay no income tax.
- A flea can jump 350 times its body length.
- The average age at which America's presidents have taken office is 54.
- There are over 1,600 known species of starfishes.
- A soap bubble is 10,000 times thinner than the average human hair.
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