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    Battery-Free Robots use Origami to Change Shape in Mid-Air

    September 15, 2023, Categories  Physics, Technology/Electronics

    A hand holding tweezers that are holding a yellow square with circuits on it
    UW researchers developed small robotic devices that can change how they move through the air by “snapping” into a folded position during their descent. Each device has an onboard battery-free actuator, a solar power-harvesting circuit and controller to trigger these shape changes in mid-air. Shown here is a “microflier” in the unfolded state.Mark Stone/University of Washington

    Researchers at the University of Washington have developed small robotic devices that can change how they move through the air by “snapping” into a folded position during their descent.

    When these “microfliers” are dropped from a drone, they use a Miura-ori origami fold to switch from tumbling and dispersing outward through the air to dropping straight to the ground...

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