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 10 months ago by RewindAgain@futurology.today to c/futurology@futurology.today
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[–] Kolanaki@pawb.social 3 points 10 months ago* (last edited 10 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 10 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 10 months ago

Don't give them ideas...

[–] obbeel@lemmy.eco.br 1 points 10 months ago

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