Kengoro the Humanoid Robot Will Sweat During Workouts

Years of evolution got something right. Scientists at the University of Tokyo found that, in trying to keep their humanoid robot cool, the most effective way to avoid overheating was to make it sweat. Kengoro is made up of 108 motors, with a frame laser sintered from aluminum, and researchers found that making the robot sweat was an effective cooling system for a bot filled to the brim with bolts. Even with the space-saving technique, the bot weighs 123 pounds and stands 5 feet 7 inches tall. "Usually the frame of a robot is only used to support forces," lead author Toyotaka Kozuki told IEEE Spectrum in an interview published Friday.