A hail cannon is a shock wave generator claimed to disrupt the formation of hailstones in the atmosphere.
These devices frequently engender conflict between farmers and neighbors when used, because they are repeatedly fired every 1 to 10 seconds while a storm is approaching and until it has passed through the area, yet there is little or no scientific evidence for their effectiveness.
Read more about Hail Cannon: Historical Use, Modern Systems, Scientific Evidence
Famous quotes containing the words hail and/or cannon:
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