- The number 4 is the only number that has the same number of letters in it.
- The tiny pocket in jeans was made for pocket watches.
- Astronauts can't burp in space.
- Only female mosquitoes bite.
- The atomic symbol for iron is Fe (the original name for iron was Ferric).
- A fifteen-year-old boy invented earmuffs in 1873.
- The longest word that can be typed using only our right hand is 'lollipop'.
- At birth a Dalmatian is always pure white.
- Mount Everest is 8.9km (5.5 miles) high.
- 2 million hydrogen atoms would be required to cover a full stop (.).
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