Cloud
In meteorology, a cloud is a visible mass of liquid droplets or frozen crystals made of water or various chemicals suspended in the atmosphere above the surface of a planetary body. These suspended particles are also known as aerosols. Clouds in earth's atmosphere are studied in the cloud physics branch of meteorology. Two processes, possibly acting together, can lead to air becoming saturated; cooling the air or adding water vapor to the air. In general, precipitation will fall to the surface; an exception is virga, which evaporates before reaching the surface.
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Famous quotes containing the word cloud:
“These boys who love their mother
who loves men, who passes on
her sons to other women;
The cloud across the sky. The windy pines.
the trickle gurgle in the swampy meadow
this is our body.”
—Gary Snyder (b. 1930)
“Not for no cold did freeze,
Nor any cloud beguile
Th’eternal flowering spring,”
—Torquato Tasso (1544–1595)
“Let chaos storm!
Let cloud shapes swarm!
I wait for form.”
—Robert Frost (1874–1963)