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.
And remember this next one, from 9 months ago?
This Is The First LIQUID Robot, And It’s Unbelievable
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