Moving objects precisely with sound | Hacker News Reader

Moving objects precisely with sound

actu.epfl.ch

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And every surface can be a speaker with lasers..

…and a microphone?

Yes. IIRC there were some eavesdropping cases where sound was read from a fairly remote glass pane.

https://news.mit.edu/2014/algorithm-recovers-speech-from-vib...

How about through a glass pane, off of a bag of chips?

Oh, cool. That's a decade ago, though - technology must have progressed, surely.

How?

I'm actually more interested in doing this at the larger macro scale than the micro scale. Imagine the ability to lift heavy objects with only sound. Weight rooms would look entirely different :)

Holo display. A bucket of glass beads suspended in air.

Holo Display: generate the refractive voxel via ultrasonic convergent propagation fringe pattern, and light the voxel with IR that becomes higher frequency visible light color at point of interfearance/intersection.

PrHoteph: hyperplanes are your friends, may they guide your long distance acoustic whisper / ultrasonic voxel intersections.

This guy made something along those lines. He calls it "orthosonic lift": https://youtu.be/H-88gsWLTac?t=126

Also check out this "acoustic streaming" video: https://www.youtube.com/watch?v=-ZE2Mnzc7mA

This strikes me as a good application for machine learning. Throw random waves at the object. Filter for useful movements.

Just saw one of these in the lab: https://www.beckman.com/liquid-handlers/echo-525 it costs half a mil

One step closer to learning how they made the pyramids.

One step closer to the sonic screwdriver from Doctor Who.

Nothing new, this has existed in my household for the last 20 odd years -

"Hey honey, move this thing over there. No, an inch and a half to the left. NOPE - back to the right a few mm, and forward a little. Yup - wait...just a little bit more. There, you've got it!"

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