The University of Tokyo has built a robot that sweats while exercising

Kenshiro and his younger "sibling" Kengoro are two robots that were built with unprecedented similarity to human anatomy at the University of Tokyo. Their unique design make them able to move in ways looking closer to natural human movement than any preceding robot. The robot can do sit-ups, push-ups, and even stretches. However, the most surprising ability Kengoro exhibits is sweating. The machinery that allows the robot to move like a human heats up, requiring water to circulate through its metal frame to cool it.