World's smallest battery-free flying robot uses magnets for power.
World's smallest battery-free flying robot uses magnets for power.
interestingengineering.com
World's smallest battery-free flying robot uses magnets for power
11 comments
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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.
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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.
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If they make one that moves with radio waves, it would be really great.
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Don't give them ideas...
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11 comments