Scientists create tiny drones and boats powered entirely by sound
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Forward-looking: Researchers have built miniature boats and flying devices that turn sound into thrust. Their 3D-printed cavities respond to specific frequencies, producing motion without motors, gears, or magnetic parts. The work points to a lighter, simpler way to power extremely small robots.
The technology was developed by EPFL's MicroBioRobotic Systems Lab in Switzerland, and the study was published in Science Advances. It relies on
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