The Earth's atmosphere weighs about 5.5 quadrillion tons.
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For every gallon of sea water, you get more than a quarter pound of salt.
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Most liquid laundry detergents are alive with living organisms that help to break down stains!
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In zero gravity, a candle's flame is round and blue.
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Nylon is made from coal and petroleum.
42
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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