Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
One cubic foot of gold weighs more than 1,200 pounds!
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5