- The Eifel Tower has 2,500,000 rivets.
- A pearl can be dissolved by vinegar.
- Despite its hump, a camel has a straight spine.
- The average soccer ball is made up of 32 leather panels and held together by 642 stitches.
- Tennis was originally played with bare hands.
- The surface area of a brick is 79 cm squared.
- 99% of our solar system's mass is the sun.
- The shortest war in history lasted for only 38 minutes.
- The 100 folds in a chef's hat represent the 100 ways to cook an egg.
- A Chinese checkerboard has 121 holes.
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