Scientists create ’shape-shifting’ metal robot which melts through bars

Engineers have designed miniature robots that rapidly and reversibly shift between liquid and solid states. Scientists from Carnegie Mellon University in Pittsburgh took gallium, a metal that melts at room temperature, and enriched it with magnetic particles. When an alternate magnetic field is run through the metal, it can melt, move and re-form. Subscribe to The Telegraph with our special offer: just £1 for 3 months. Start your free trial now: Get the latest headlines: and are websites of The Telegraph, the UK’s best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.