Thursday's Useless Trivia and Facts

1. The fastest recorded tennis serve? 153 miles per hour.



2. The woolen swimsuits that people wore at the turn of the 20th century weighed about 20 pounds when wet.



3. Australia is the only continent on Earth without an active volcano.



4. The brain of a reptile accounts for less than 1% of its body mass.



5. When it's written out as "forty," 40 is the only number whose letters are in alphabetical order.



6. In Hartford, Connecticut, it's against the law to educate a dog.



7. The ostrich is the only bird with eyelashes.



8. Studies show: English speakers say “uh” before a short pause and “um” before a long pause.



9. Obsidian—volcanic glass—is so sharp it’s still used today in cardiac and eye surgery.



10. Among mammals: the colder the climate, the shorter the legs.

**From Uncle John's Bathroom Readers**