Cloud Seeding: Man-Made Rain
Cloud seeding, a form of weather modification, is the act of attempting to artificially induce or increase precipitation, usually to stave off drought. By dispersing substances into the air that serve as cloud condensation or ice nuclei, cloud seeding is meant to change the amount or type of precipitation that falls from clouds. The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide). Though the practice started as a fringe science in the 1940s, it entered the mainstream with Operation Popeye, a US military operation to increase rains over Vietnam during the Vietnam War in order to slow Vietnamese military truck activity in the region. While practiced widely around the world—notably at the 2008 Beijing Summer Olympics—the effectiveness of cloud seeding is still a matter of academic debate. Rainmaking in general has ancient roots and strong cultural significance in many societies around the world, and rain dances and other rituals are still practiced today in areas ranging from Zimbabwe to Slovakia.
I would love to see the entire process
(Source: youtube.com, via experimentsinmotion)