Download U.S. Navy unveils high-speed rail gun
U.S. Navy unveils high-speed rail gun
U.S. Navy unveils high-speed rail gun
The U.S. Navy has unveiled a new secret weapon that its developers call a rail gun. Its projectile can travel at seven times the speed of sound and could potentially change the way America fights wars...
The U.S. Navy has unveiled a new secret weapon that its developers call a rail gun. Its projectile can travel at seven times the speed of sound and could potentially change the way America fights wars. David Martin reports.
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