Robot Revolution? Scientists Teach Robots to Learn For robots to really help humans, they'll need to learn more like we do. By Brian Handwerk, for National Geographic PUBLISHED Sat Jul 20 02:08:00 EDT 2013 0 The PR2 robot was developed to be easily customized for research. Here it's being used to deliver mail. Photograph by Max Aguilera-Hellweg, National Geographic Part of our weekly "In Focus" series—stepping back, looking closer. Related Stories How Artificial Intelligence Will Revolutionize Our Lives How Drones Are Affecting Wildlife in Surprising Ways Smart Drones: Designed through Collaboration.