Scientists build robot hand that can sweat

Fingers made of hydrogels layers have pores that ooze water to cool down

Never mind their cold, hard logic and tireless dedication to the task at hand - the most unappealing aspect of robots to come may well be their personal hygiene.

In a demonstration of how to build machines that do not overheat, researchers have created a robot hand that regulates its temperature naturally - by breaking into a sweat.