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.
Instead of relying on explosive propellants like gunpowder to fire, the gun uses a giant surge of electricity to propel the slug out of the barrel at speeds that can approach Mach 8 and can strike targets more than 100 miles away.
Charles Garnett, a project manager on the railgun experiment, told the Post that the gun gets its power the same way a pocket camera builds up energy to operate its flash, but on a much larger scale.
Craaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaap!
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