8 illuminating facts about clouds

The gorgeous cotton balls drifting 60,000 feet above our heads are more than atmospheric decoration that inspire great works of art and philosophy. Clouds come in all shapes and sizes and are the sites of a number of fascinating meteorological phenomena. Here, some cloud facts.

The average cloud droplet is .02 mm in diameter, about five times smaller than the thickness of a sheet of paper. These droplets condense to form clouds up to 14 miles tall, which would be the same height as fifty Empire State Buildings piled on top of each other.
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