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由美国加利福尼亚劳伦斯·利费莫尔国家实验室科技人员研制的袖珍雷达,能通过混凝土发现心脏仍在跳动或奄奄一息的幸存者。这种雷达非常小巧,甚至可将其嵌入飞碟内,然后从安全区投入瓦砾堆。一旦发现生命迹象,它会向营救人员发出信号。 研究人员发明的并非普通的雷达。首先,它能在距离非常近的的范围内极其准确地探测目标。此外,它的耗电量很小。其最大的优点是造价只有10美元左
The pocket-sized radar, developed by scientists at Lawrence Livermore National Laboratory in California, USA, finds through concrete concrete that the heart is still beating or dying survivors. The radar is so small that it can even be embedded in a flying saucer and put into the rubble heap from the safe area. It will send a signal to rescue workers once a sign of life is found. Researchers invented the radar is not ordinary. First, it can detect targets extremely accurately within a very close range. In addition, it consumes very little power. Its biggest advantage is the cost of only 10 US dollars left