- The fastest insect is the Australian dragon fly (its top speed is 57 km/h (35mp/h)).
- There are no rivers in Saudi Arabia.
- Sailors once thought wearing gold earrings improved eyesight.
- In a deck of cards the king of hearts is the only king without a moustache.
- A fifteen-year-old boy invented earmuffs in 1873.
- A rhinoceros horn is made of compacted hair.
- Bernhard Riemann was an influential German mathematician who contributed to differential geometry and analysis, paving the way for the development of general relativity by Albert Einstein.
- The film 'Mary Poppins' was filmed entirely indoors.
- Your feet typically produce a pint of sweat every single day.
- Whales have the slowest metabolism of all animals.
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