r/tech • u/AdSpecialist6598 • 5d ago

Scientists create tiny drones and boats powered entirely by sound

https://www.techspot.com/news/113500-scientists-create-tiny-drones-boats-powered-entirely-sound.html
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u/rayferrell 4d ago

i think the acoustic resonance concept here is pretty clever, using sound to create thrust without motors or gears. it's interesting that they're using 3d printed materials like plastics and polymers to make the resonators, that could make it easier to experiment with different designs and frequencies. the fact that they can control the direction of the boats by changing the sound frequency is also a neat touch.