rainmaking

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(rān''kĭng) pronunciation
n.
  1. The process of producing or attempting to produce rain, as by magic.
  2. Informal. Cloud seeding.
  3. Informal. The process of achieving excellent results in a profession or field, such as politics.

rainmaking, production of rain by artificial means now generally disregarded, though it is probable that rainmaking hastens or increases rainfall from clouds suitable for natural rainfall. Interest in rainmaking has been spurred by factors including drought and the need for irrigation water. Until recent times it was thought that rain might be induced by explosions, updrafts from fires, or by giving the atmosphere a negative charge. Research during the 1930s showed that rain forms in warm clouds when larger drops of condensed water grow at the expense of smaller ones until they are big enough to fall; also that in cold clouds supercooled water below 5°F (−15°C) freezes into ice crystals that act as nuclei for snow. On this basis the American physical chemist Irving Langmuir and his associates carried on Project Cirrus from 1940 to 1952 to find ways to produce rain. Three methods resulted, including spraying water into warm clouds; dropping dry ice into cold clouds, where the dry ice freezes some water into ice crystals that act as natural nuclei for snow; and wafting silver iodide crystals or other similar crystals into a cold cloud from the ground or from an airplane over the cloud, with the crystals hastening the freezing of supercooled water between 27°F (−2.8°C) and 5°F. Overseeding can dissipate a cloud. These techniques are only moderately successful; they cannot be relied upon in case of drought.

Bibliography

See Utah Water Research Laboratory, Development of Cold Cloud Seeding Technology for Use in Precipitation Management (1971); L. J. Battan, Cloud Physics and Cloud Seeding (1979).


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Rainmaking, also known as Artificial precipitation, is the act of attempting to artificially induce or increase precipitation, usually to stave off drought. According to the clouds' different physical properties, this can be done using airplanes or rockets to sow to the clouds catalysts such as dry ice, silver iodide and salt powder, to make clouds rain or increase precipitation, to remove or mitigate farmland drought, to increase reservoir irrigation water or water supply capacity, or to increase water levels for power generation.

China's earliest artificial rainfall experiments in 1958, Jilin Province in this year suffered a serious drought in 60 years, artificial rainfall was a success. 1987 in Fight Daxinanling large forest fire, artificial rainfall play an important role.

In the US, rainmaking was attempted by traveling showmen. It was practiced in the old west but may have reached a peak during the dust bowl drought of the American West and Midwest in the 1930s. The practice was depicted in the 1956 film The Rainmaker. Attempts to bring rain directly have waned with development of the science of meteorology, the advent of laws against fraud and increased communication technology, with some exceptions such as cloud seeding and rain dances or other forms of prayer, which are still practiced today.

The term is also used metaphorically to describe the process of bringing new clients into a professional practice, such as law, architecture, consulting, advertising, or investment banking - in general, processes that bring money into a company.

Contents

Cloud Seeding

Since the 1940s, cloud seeding has been used to change the structure of clouds by dispersing substances into the air, potentially increasing or altering rainfall. In spite of experiments dating back to at least the start of the 20th century, however, there is much controversy surrounding the efficacy of cloud seeding, and evidence that cloud seeding leads to increased precipitation on the ground is highly equivocal. One difficulty is knowing how much precipitation might have fallen had any particular cloud not been seeded. Operation Popeye was a US military rainmaking operation to increase rains over Vietnam during the Vietnam War in order to slow Vietnamese military truck activity in the region. China has been seeding clouds for years, while American policy makers and scientists are beginning to take rainmaking seriously once again. Rainmaking is a form of Weather modification, as it seeks to change local weather. It is somethimes confused with Geoengineering, which seeks to alter the whole climate.

William Reich's Cloudbuster

Austrian-American psychoanalyst William Reich designed a "cloudbuster" in the United States with which he said he could manipulate streams of orgone energy (which he claimed was a primordial cosmic energy) in the atmosphere to induce rain by forcing clouds to form and disperse. It was a set of hollow metal pipes and cables inserted into water, which Reich argued created a stronger orgone energy field than was in the atmosphere, the water drawing the atmospheric orgone through the pipes. Reich called his research "Cosmic Orgone Engineering."

In 1953, a drought threatened Maine's blueberry crop, and several farmers offered to pay Reich if he could make it rain. The weather bureau had reportedly forecast no rain for several days when Reich began the experiment at 10 a.m. on July 6, 1953. The Bangor Daily News reported on July 24 that the experiment had succeeded and Reich had received his fee. Reich was later arrested and convicted for related medical experiments and all his research materials and books were ordered to be burned by a Maine judge (on request of the FDA), which was done on August 23, 1956.

Rain Dances and Prayer

In many societies around the world rain dances and other rituals have been used to attempt to increase rainfall. Some Native Americans used rain dances extensively. European examples include the Romanian ceremonies known as paparuda and caloian. Some United States farmers also attempt to bring rain during droughts through prayer, a phenomenon particularly common in US farming regions. These rituals differ greatly in their specifics, but share a common concern with bringing rain through ritual and/or spiritual means. Typical of these ceremonies was then-governor of Georgia Sonny Perdue's public prayer service for rain, in 2007.[1]

See also

Further reading

  • Sanders, Todd 2008. Beyond Bodies: Rainmaking and Sense Making in Tanzania. Toronto, University of Toronto Press

In popular culture

References


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Egregore (parapsychology)
In Old Amarillo (1951 Western Film)