InDubioProRubio 4 days ago

And every surface can be a speaker with lasers..

consultutah 4 days ago

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 :)

  • swayvil 4 days ago

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

    • codelobe 4 days ago

      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.

swayvil 4 days ago

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

deeel 4 days ago

One step closer to learning how they made the pyramids.

  • aduitsis 4 days ago

    One step closer to the sonic screwdriver from Doctor Who.

Optimal_Persona 4 days ago

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!"