- Sound travels about 4 times faster in water than in air.
- Mosquitoes prefer children to adults and blondes to brunettes.
- The 50-star flag was designed for a high school class assignment.
- Gorillas sleep 14 hours a day.
- A compass needle does not point directly north.
- If you filled a matchbox with gold it could be flattened into a sheet the size of a tennis court.
- Greek mathematics developed from around the 7th century BC, producing many important theories thanks to great mathematicians such as Pythagoras, Euclid and Archimedes.
- There are 22 stars in the Paramount studios logo.
- The wristwatch was invented in 1904.
- EMI awards stands for 'Electrical and Musical Instruments'.
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