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:
“To go where? In that Dark—that—in that God? a
radiance? A Lord in the Void? Like an eye in the black cloud in a
dream? Adonoi at last, with you?”
—Allen Ginsberg (b. 1926)
“A brush had left a crooked stroke
Of what was either cloud or smoke
From north to south across the blue;
A piercing little star was through.”
—Robert Frost (1874–1963)
“Not for no cold did freeze,
Nor any cloud beguile
Th’eternal flowering spring,”
—Torquato Tasso (1544–1595)