China-made robot sets record for longest walk

Walker I, a China-made robot, set a new Guinness World Record on Sunday for walking kilometers in 54 hours. The four-legged robot, made by a research team in southwest China’s Chongqing University of Posts and Telecommunications (CQUPT), circled an indoor track in Chongqing from Oct. 24 to 27, taking 340,000 steps before it had to stop and recharge. The distance it covered was more than twice as much as that by the former record holder, Ranger, which was developed by a team at Cornell University in