Vortex Cannon! - Bang Goes the Theory Preview - BBC One

Subscribe and 🔔 to the BBC 👉 Watch the BBC first on iPlayer 👉 Jem Stansfield builds a vortex cannon to blow a house of bricks over. More about this episode: #bbc All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the ’Are all programmes that are broadcast available on BBC iPlayer?’ FAQ 👉