U.S. Navy railgun makes public debut

STORY: Once an imaginary weapon on Star Wars, the electromagnetic gun is now reality...with the railgun making its public debut at the the U.S. Navy's Science and Technology Expo on Wednesday. The

STORY: Once an imaginary weapon on Star Wars, the electromagnetic gun is now reality...with the railgun making its public debut at the the U.S. Navy's Science and Technology Expo on Wednesday. The

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