Source: China – South China Morning PostScientists have created a robot fish that swims using a low-cost artificial muscle that could one-day be used to develop prosthetic limbs.The researchers, from the University of Science and Technology of China, hope that the technique – which uses liquid metal to mimic natural muscle movements — could also help to administer drugs inside the body and underwater drones.The muscle is made using gallium, a silvery metal that has a low melting point and can be turned to liquid simply by being held…Read More