A strange liquid magnet full of iron nanoparticles can change its shape in a magnetic field, and it may eventually be used to make wireless, moving soft robots
Source:
https://www.newscientist.com/article/2210405-weird-new-type-of-magnetic-liquid-could-be-used-to-control-soft-robots/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home