澳门金沙游戏平台网址:Guiding missiles


THE Global Positioning System – the network of navigation satellites designed to help airline pilots, surveyors and farmers to fix positions with precision – could also help unstable developing countries to aim their ballistic missiles more accurately. Two researchers at the Rand Corporation, a think-tank in Santa Monica, California, say that GPS navigation receivers could make Scud and No Dong 1 missiles more accurate by between 20 and 25 per cent. Iraq, Iran and several other nations have Soviet-designed Scud missiles; only North Korea has the No Dong 1. An inexpensive GPS receiver could determine when a missile has reached the position and speed for its rocket engines to cut off at the right moment to strike its target,
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