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Stories about: search-and-rescue

Unmanned Helicopter Flies Record Low It has always been difficult for any kind of flying machine to fly close to the ground in crowded environment conditions, meaning close to buildings, pillars, trees or cables. But a group of technicians from the Carnegie Mellon University in Pittsburgh led by roboticist Sanjiv Singh have managed to build an uncrewed ... 10 November 2008 11:12 GMT