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A build of a portable acoustic tractor beam

55delta

By 55delta
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55delta

55delta

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Found a news story on someone having built a sonic tractor beam. That is, it uses sounds to move or levitate very small objects. Apparently, if you can assemble one yourself, if you have parts from Arduino and access to a 3D printer. 

CBC article here.

Build video here.

Explain of how it works here.

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