Vortex Cannon! - Bang Goes the Theory Preview - BBC One
http://www.bbc.co.uk/bang
Jem Stansfield builds a vortex cannon to blow a house of bricks over.
More about this episode: http://www.bbc.co.uk/progra...
Jem Stansfield builds a vortex cannon to blow a house of bricks over.
More about this episode: http://www.bbc.co.uk/progra...
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