- Here is Pi written to 100 decimal places: 3.1415926535897932384626433832795028841971693993751 058209749445923078164062862089986280348253421170679.
- October the 10th is national metric day.
- 1 gigayear = 1,000,000,000,000 years.
- Crocodiles never outgrow their enclosure.
- The ancient Greeks first grew carrots as a form of medicine and not a food.
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