No motors or batteries: how EPFL scientists created microdrones powered by sound
🔊 Scientists from EPFL have created microdrones powered by sound! No motors or batteries. The principle is based on Helmholtz resonance: sound is converted into thrust. 🚁
💡 How it works:
• A sound wave pumps the resonator.
• Asymmetry of flows creates reactive thrust.
• Drone weight is only 150 µg!
🚀 Capabilities:
• Control via sound frequency.
• Movement like a rocket or helicopter.
• 3D-printed bodies.
#Science #Robotics #EPFL #Technology #Sound
Read more →