Navy's sci-fi railgun breaks record for most powerful gun on the planet: "Say hello to the Navy's little friend.
Navy scientists set a world record Friday during a test of an electromagnetic railgun, a tractor-trailer sized weapon that sends a 20-pound projectile rocketing through the air at seven times the speed of sound.
The futuristic gun was tested twice at the Naval Surface Warfare Center in Dahlgren, Va., and the first shot generated 33 megajoules of force out of the barrel, a world record for muzzle energy, the scientists said.
One megajoule is a unit of energy roughly equal to the energy generated by a 1-ton vehicle moving at 100 MPH. The same rail gun generated about 10 megajoules during a test two years ago.
Roger Ellis, the railgun program manager, told The Washington Post that people 'see these things in the video games, but this is real. This is what is very historical.'
What is novel about the gun – aside from its astonishing power – is the way it works."