- Sound travels 15 times faster through steel than air.
- The Greek national anthem has 158 verses.
- Fingernails grow faster than toenails.
- The popsicle was invented in 1905 by an 11-year-old boy.
- There are over 100 different viruses that cause the common cold.
- Along with arithmetic, geometry was one of the two fields of pre-modern mathematics.
- To crack a whip the tip must be travelling faster than the speed of sound.
- Over a third of all pineapples come from Hawaii.
- A pearl can be dissolved by vinegar.
- A horse's canter is a 3-beat gait. After the third beat all three legs are off the ground.
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