It was back in 2014 that we first heard about the Chairless Chair, a lower-body exoskeleton that doesn't impede walking, but that also supports the wearer when they go into a sitting position. Well, there's now a lighter, comfier model.
Researchers at Northwestern University in Illinois have demonstrated the world's smallest remote-controlled walking robot, at just half a millimeter wide. Such tiny machines can bend, twist, crawl, walk, turn and jump without hydraulics or electricity.