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

Physicist John Hunter has proposed the constructio...  ...non that could fire a 450 kg payload into orbit. David Shiga writes in New Scientist: The gun is based on a...

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