LiveScienceScientists build tiny robots without motors that can fly using sound waves alone
A century-old trick for tuning musical instruments has been repurposed to power robots that fly, float and steer themselves using nothing but sound waves.
www.livescience.com
Very cool. Can't wait for millions of these to be eavesdropping on every convo in the world and collecting our info.
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They need an ultrasound source aimed at them, so the secret spy swarm is gonna need a pretty large boombox following it around. Give the engineers a few years though lol
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When you hear rap music blasting down the street you're either about to get drive-byed or secret robot-spyed.
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