Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
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If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
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Contrary to popular belief, hair does not grow back darker and thicker after it has been shaved.
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Dartboards are made out of horsehairs.
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Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.
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The search engine Google got its name from the word 'googol', which refers to the number one with a hundred zeros after it.
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A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
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On average, the life span of an American dollar bill is eighteen months.
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