Tiny robots with ‘brains’ can walk autonomously inside your body

Scientists have built microscopic robots equipped with electronic “brains” that are capable of walking autonomously.

A team from Cornell University in the US developed the solar-powered bots as part of research into a new generation of tiny devices that can perform roles ranging from performing microsurgery, to cleaning the inside of arteries.

The microrobots measure just 250 micrometres across – smaller than the head of an ant – and can operate without any external controls.