Hail cannons

Hail cannons are devices claimed to prevent or reduce hail damage by emitting shock waves or sound waves into the atmosphere. The idea is that these waves disrupt the formation of hailstones inside thunderclouds, thus minimizing the size and quantity of hail. However, scientific studies have not conclusively proven their effectiveness, and hail formation is primarily influenced by complex weather processes. Hail cannons are often used in agriculture to protect crops, but their effectiveness remains controversial within the scientific community.