- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things..
- Each year there is one ton of cement poured for each man, woman, and child.
- A queen bee can lay up to 3,000 eggs in one day.
- The odds of being stuck by lighting is 280,000 to 1.
- The diameter of the sun is 1,390,000km (865,000 miles).
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