EPFL Engineers Sound-Powered Micro-Drones with No Batteries or Chips

MacrinePhD · x · 2026-08-14

EPFL researchers have engineered 'microfliers' that use 3D-printed acoustic cavities to convert ultrasonic waves into directional thrust via Helmholtz resonance, requiring no batteries, motors, or chips. Applications include biomedical sensing, confined-space inspection, and covert ISR.

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