Coins usually survive in circulation for about 30 years.
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The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
10
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
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Oak trees can live 200 or more years.
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The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
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Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
In the U.S., more than 10% of lottery prizes go unclaimed!
55
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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