A brief guide to the denizens of the sky.
High clouds (above 20,000 feet): Cirrus, cirrostratus, cirrocumulus
Middle clouds (6,500-20,000 feet): Altostratus, altocumulus
Low clouds (below 6,500 feet): Stratus, stratocumulus, nimbostratus
Vertical clouds (all levels): Cumulus, cumulonimbus
Clouds form when water vapor in the air cools and condenses around tiny particles called condensation nuclei—dust, pollen, sea salt. The shape depends on the temperature, humidity, and air movement. Every cloud is unique, a momentary sculpture of thermodynamics.
"Look at the clouds. They're patient teachers—
always changing, never complaining,
making art that lasts only as long as you watch."
The sky refreshes every hour. Same shapes will never return.
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