this post was submitted on 18 Aug 2026
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Researchers show off tiny, completely silent drones powered by sound (actu.epfl.ch)
submitted 4 days ago by artifex@piefed.zip to c/technology@lemmy.world
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Researchers have figured out how make shaped drone rotors that convert audible and ultrasound frequencies into stable mechanical spinning motion, leading to tiny drones that can be completely silent. While scary-sounding (no pun intended) it's unclear how usable these would be in the real world, since a line-of-sight source of sound waves has to be provided.

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[–] Eryn6844@piefed.blahaj.zone 11 points 4 days ago (2 children)

WTf is wrong with these people? why are you making shit they will useagainst us? enslave us with?

[–] spacegoat@lemmy.world 1 points 3 days ago

If you had a button that would end humanity would you press it? There are many who would