What does it take for an autonomous robot to be faster around a course than human drone pilots? At these dizzying speeds, humans need lightning-fast reflexes. Researchers at Delft University of Technology (the Netherlands) have developed an AI system that enables a racing drone to navigate demanding courses at extreme speed using only a single camera. It outperformed even former world champion human drone pilots in a race.

From the compact joints of humanoid robots to the leg mechanisms of quadruped robots and the motion systems inside precision medical equipment, engineers increasingly need transmission components that can deliver high torque without occupying much space.

From monitoring public spaces to responding to requests for help, security robots are beginning to take on roles once held by people. As they gain authority, researchers are asking what it might take for the public to trust them.