this post was submitted on 01 Apr 2025
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World's smallest battery-free flying robot uses magnets for power. (interestingengineering.com)
submitted 3 months ago by RewindAgain@futurology.today to c/futurology@futurology.today
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[–] Kolanaki@pawb.social 2 points 3 months ago* (last edited 3 months ago) (1 children)

It almost looks like one of those toy helicopters that you launch by just lifting it up a coiled rod so it spins really fast.

[–] Lugh@futurology.today 2 points 3 months ago (2 children)

Yeah, I wonder how far they can extend the magnetic fields that power them? Even if it is relatively short range, they look really cheap to make, so you could have thousands of them with sensors to scan localized areas.

[–] P00ptart@lemmy.world 1 points 3 months ago

Don't give them ideas...

[–] obbeel@lemmy.eco.br 1 points 3 months ago

If they make one that moves with radio waves, it would be really great.