A tiny worm robot can be controlled by magnets to wiggle through arteries in a model brain. It could one day be used to make brain surgery less invasive
Source:
https://www.newscientist.com/article/2214657-worm-robot-could-wiggle-its-way-through-arteries-in-the-brain/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home