One cubic foot of gold weighs more than 1,200 pounds!
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Billions of neutrinos pass unnoticed through your body every second.
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Sound travels about 4 times faster in water than in air.
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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If the chemical sodium is dropped into water it will immediately and violently explode.
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