Physicist Proposes Using Cannon to Fire Payloads into Space...

Physicist John Hunter has proposed the constructio...  ...Hunter helped to build in the 1990s while at the Lawrence Livermore National Laboratory (LLNL) in California. With a barrel 47 metres lon...

http://www.neatorama.com/2009/10/07/physicist-proposes-using-cannon-to-fire-payloads-into-space/