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There are 60,000 miles of blood vessels in every adult human.
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
If you could remove all of your skin, it would weigh up to 5 pounds.
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