Scientists have created sweaty robots!
Metal robots are pretty good at staying cool, but soft robots--made of rubber and used for tasks that require a gentler touch--can overheat.
So, those scientists have made a robotic gripper with sweat glands. Their system works well, though, one problem they’re having is slippery fingers. The fact that the "sweat" will also need refilling might also be trouble.
For more info, read The Verge's article.