Besides the extended ranges, the railgun also improves safety.
December 15, 2010 7:00 AM Subscribe
is a long-range, high-energy gun launch system that uses electricity rather than gunpowder or rocket motors to launch projectiles capable of striking a target at a range of more than 200 nautical miles with Mach 7 velocity.
U.S. Navy researchers notched a world record
on Dec. 10 at the Naval Surface Warfare Center in Dahlgren, Va
., when they fired off a projectile
packing 33 megajoules of energy using an electromagnetic railgun (more better video
). That's as much kinetic energy as a 33-ton semi has when it's traveling at 100 mph.