Researchers said on Monday they had designed the first robotic leg with “artificial muscles”—oil-filled bags allowing machines to move more like humans—that can jump nimbly across a range of surfaces. Researchers said on Monday they had designed the first robotic leg with “artificial muscles”—oil-filled bags allowing machines to move more like humans—that can jump nimbly across a range of surfaces. General Physics Phys.org – latest science and technology news stories