- Sir Isaac Newton was 23 when he discovered the law of gravity.
- The oldest exposed surface on Earth is New Zealand's south island.
- The average cow produces 40 glasses of milk a day.
- The Empire State Building in New York weighs over 365,000 tons.
- Here is Pi written to 100 decimal places: 3.1415926535897932384626433832795028841971693993751 058209749445923078164062862089986280348253421170679.
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