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

Telegraph, 26 Jan 2023
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.

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