HI Novacastrian. Thanks for the welcome. As far as being totally spudgun un-related. I might ask if you acctually read the link? They are about hail-CANNONS. Combustion cannons to be precise. I posted the links to keep the message short. But I have an interest in all types of cannons and thought tha...

Check out these links about "Hail Cannon" they stop the formation of hailstone from falling from the sky.

http://www.rockymountainnews.com/drmn/l ... 00,00.html

http://www.npr.org/templates/story/stor ... Id=9189996

Patrick.