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Stories about: railgun

What Is a Railgun? When it comes to weapons, the U.S. Navy never seems to have enough of them or to make them as deadly as they wish them to be. Yesterday, engineers employed by the U.S. government tested an improved railgun design that is able to output a total power of 10 megajoules, breaking the record of the previous railgun, which... 1 February 2008 07:00 GMT How Did The World's Biggest Tank Work? Who can name the biggest tank in history?Of, course, it was built (or at least designed on paper) during World War II, considered to be the Golden Age of tanks.But did you know that the first tank in history was designed, though never actually built, by Leonardo Da Vinci?It was an armored war vehicle capable of movi... 13 April 2007 11:04 GMT