Friday, June 27, 2008

Modern Day Rain Dance

Here is Beijing, it rains about 5 days per year because it is positioned between two mountian ranges along side a desert.

One night it sounded life firework, however, it was explained that they were shooting dry ice high into the sky to generate rain. Modern day rain dance.

In an effort to reduce pollution they have planted thousands of trees, and trees and grass need water. So due to the lack of rain they have begun seeding the clouds to make it rain.
Cloud seeding, a form of weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alters the microphysical processes within the clouds. The substances used are usually include silver iodide and dry ice (frozen carbon dioxide).

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