A German engineering company has programmed a dangling robot arm to learn movements and actions in the same way human babies do. The arm, which was designed to be as dexterous as an elephants trunk, can be taught to reproduce certain positions on command through a process known as goal babbling, in which the robot remembers small changes in the pressure of its pneumatic muscles. New Scientist says this approach is similar to the way human babies learn to interact with the world through a process of trial and error.
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