Humanoid robot outruns Usain Bolt record as China races ahead

If your mental image of a humanoid robot still involves stiff knees and awkward demos, you may want to update it. A Chinese humanoid robot has now covered 100 meters faster than Usain Bolt's 9.58-second human world record. At the opening of Beijing's World Humanoid Robot Games, an X-Humanoid robot completed the 100-meter sprint in 9.39 seconds. Then the number dropped again.

X-Humanoid announced on Aug. 25 that TianGong Ultra ultimately posted a 9.32-second time during the competition. The...