Scientists from Stanford have developed several of super-small and super strong robots. With tracking inspired by Geckos, they can climb walls. New Scientist reports, “The adhesives are covered in minute rubber spikes that grip firmly onto the wall as the robot climbs. When pressure is applied, the spikes bend, increasing their surface area and thus their stickiness. When the robot picks its foot back up, the spikes straighten out again and detach easily.”
See two robots that borrow techniques from both inchworms and geckos climb up walls while carrying huge loads below.