Giving robots a crash course on body language: As robot-human interaction becomes more common, designer and coder Madeline Gannon has set out to experiment with how we relate to machines. In an installation for the World Economic Forum, Gannon trained 10 industrial robots to respond to the behavior of human passersby. The robots had a single central brain — allowing them to act independently and as a pack — along with 12 depth cameras and sensors. Such tech could let robots signal their intentions to humans via subtle body cues, aiding human-robot relations.