Vortex / Hail Cannon . Welland Steam and Country Rally 2010

Vortex / Hail Cannon at 46th Welland Steam and Country Rally , Woodside Farm (WR13 6NG), Worcestershire , mid-way between Upton-Upon-Severn and Malvern. see it for yourself at 2012 , 48th Show - Friday 27th, Saturday 28th Sunday 29th July 2012 A Hail cannon is a pseudoscientific device that acts as a shock wave generator alleged to disrupt the formation of hailstones in the atmosphere in their growing phase. An explosive charge of acetylene gas and a