Writing in Smart Materials and Structures, Lead author Dr. Yonas Tadesse from the University of Texas at Dallas, said: "To our knowledge, this is the first successful powering of an underwater robot using external hydrogen as a fuel source." (BBC)
Engineers in the US say they have invented a hydrogen-powered robot that moves through water like a jellyfish.
Development of the robot, nicknamed Robojelly, is in the early stages but researchers hope it could eventually be used in underwater rescue operations.
