U.S. Navy Testing Shiny New 32-Megajoule Railgun Prototype

The U.S Navy getting their hands on a new toy. The first naval EM railgun (electromagnetic) Prototype was obtained by the navy in Dahlgren, Virginia. For those who don't know, Electromagnetic railguns uses electricity instead of chemicals (like gunpowder) to propel projectiles. Magnetic fields, created by high electrical currents, accelerate a sliding metal conductor between two rails to launch projectiles at 7,200 km/h to 9,000 km/h.
 The navy's ultimate goal of the project is to be able to fire projectiles 50- to 100-nautical miles (with expansion up to 220 nautical miles), which would be suitable for naval surface fire support, land strikes, cruise and ballistic missile defence, and surface warfare. http://www.pcworld.com/article/249628/us_navy_testing_shiny_new_32megajoule_railgun_prototype.html?tk=out