Vortex / Hail Cannon . Welland Steam and Country Rally 2010

Vortex / Hail Cannon at 46th Welland Steam and Country Rally http://www.wellandsteamrally.co.uk , 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 air is fired in the lower chamber of the machine. As the resulting energy passes through the neck and into the cone it develops into a force that becomes a shock wave. This shock wave then travels at the speed of sound through the cloud formations above, a disturbance which manufacturers claim disrupts the growth phase of the hailstones . http://en.wikipedia.org/wiki/Hail_cannon More vids from Trevor http://www.youtube.com/user/7779trevor How to Get Email Notifications of New Videos from a User You Subscribe To on YouTube Hi thanks for watching this video , If you liked it and would like to see more please subscribe to Trevor Ridvidd , also want to know when I upload a new video and receive a email notification, you need to 1) Subscribe to Trevor Ridvidd 2) Sign in to your utube channel 3) Go to your Subscriptions page by Clicking on your Channels name ( on top right Hand corner ) 4) Click on Manage subscriptions (On the left hand side lower screen) 5) Put 2 tick in Trevor Ridvidd box's (Email me about new uploads and show only uploads in feed " this box will put new uploads at top " ) cheers Trevor Ridvidd Good Detailed article on this subject http://m.wikihow.com/Get-Email-Notifications-of-New-Videos-from-a-User-You-Subscribe-To-on-YouTube