An electromagnetic railgun would use magnetic fields created by electrical currents to accelerate a sliding metal conductor along two rails. Larry Greenemeier reports.
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The Pentagon is closer to adding a futuristic new gun to its arsenal, using electricity rather than chemical propellants. It?s called an electromagnetic railgun.
A railgun uses magnetic fields created by strong electrical currents to accelerate a sliding metal conductor along two rails. It can hurl projectiles as far as 370 kilometers at speeds of up to 9,000 kilometers per hour. That?s nearly twice as fast as conventional guns.
After testing a couple of different railguns in recent years, the Office of Naval Research awarded defense contractor BAE Systems $34.5 million to build a new prototype. This next-generation railgun should overcome its predecessor?s shortcomings by firing multiple rounds and not overheating.
Ship-mounted railguns would be powered by the vessel?s electrical grid and reduce the amount of combustible material onboard.
With the Navy already preparing to deploy laser-mounted cannons on some of its ships, control of the high seas may soon go to the side that can generate the most energy.
?Larry Greenemeier
[The above text is a transcript of this podcast]?
Source: http://rss.sciam.com/~r/sciam/basic-science/~3/7_pNDiUvGMg/episode.cfm
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