Watch a two-legged sprinting robot set a world record over 100 metres

By Emily Bates

A robot has run the fastest 100 metres for a bipedal machine, setting a Guinness World Record. Cassie the robot reached the finish line in just under 25 seconds. The robot has knees that bend like those of an ostrich and no external sensors or cameras. It was trained for the equivalent of a full year in a simulated environment.