[youtube]http://www.youtube.com/watch?v=IyAyd4WnvhU[/youtube]

Who needs the big bad wolf

In this video, the BBC’s Jem Stansfield test fires a vortex cannon that uses anacetylene and oxygen fueled explosion to fire an extremely powerful blast of air across a lake. Stansfield attacks three targets: houses of straw, sticks and bricks, with some spectacular results.

via:weinterrupt