The M134 GAU-17 “Vulcan” cannon is a six-barreled, air cooled, medium machine gun used primarily as ... barreled rotary weapon invented by Richard J. Gatling in the 1880s.

The machine-gun was a game-changing weapon of mass destruction. But did this awesome threat actually save lives? When, in 1861, Dr Richard Gatling patented the Gatling gun – one of the first ...