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Beijing enjoyed its third day of artificially induced snow on Thursday after its longest drought in 38 years.

2009-02-19

 water control China cloud artificial drought snow induced weather iodide
Wilson Bentley (1865-1931) is credited with capturing the first images of single snowflakes on camera. He made thousands of the jewel-like prints, no two alike. His photomicrography technique involved a microscope and a bellows camera. He caught pneumonia in a blizzard and died just weeks after the publication of his book Snow Crystals.

2010-01-21

 snow snowflake photography crystal ice Ivana Šebestová
Chinese meteorologists say they brought about Beijing's earliest snowfall in a decade, after seeding rain clouds with silver iodide to ease a drought...

2009-11-02

 cloud China snow meteorology weather drought
Either there's a special machine that spits out silver iodide, dry ice or cement into the clouds, or a hatch opens and a guy with a shovel seeds the clouds manually...

2010-03-26

 cloud snow meteorology weather drought Russia rain
A study of hailstones has found large numbers of bacteria at their cores. The find lends credence to the "bio-precipitation" idea, which suggests that bacteria are actively involved in stimulating precipitation. The bacteria have protein coatings that cause water to freeze at relatively warm temperatures...

2011-05-25

 water bacteria microorganism precipitation rain snow ice freeze climate biology weather