The Earth's atmosphere weighs about 5.5 quadrillion tons.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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Cold water weighs more than hot water.
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A cubic yard of air weighs about 2 pounds at sea level.
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4.5 pounds of sunlight strike the Earth each day.
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Nearly 50% of the world's scientists are assigned to military projects.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9