International. How could anyone do push-ups for ten minutes straight without overheating? The Kengoro robot, developed at the University of Tokyo, is capable of doing so. The 1.7-meter-tall, 56-kilogram musculoskeletal humanoid can, despite its 108 engines, make presses for eleven minutes or run for half a day without overheating.
The solution to keep the humanoid robot cool and running is very simple: sweat. Because its structure does not allow space for the fans and radiators normally used to cool computers, the engineers created small gaps in the robot's frame that allow water to seep in, thus cooling the areas most prone to overheating.
This technique, similar to the sweat of humans, is a lightweight alternative to traditional cooling systems and prevents heat from becoming a limitation on the robot's operation.
Kengoro can run for half a day on a cup of deionized water. Tests showed that this cooling method works three times better than air cooling, and significantly better than circulating water through the inner channel.
