4 ms·
Moving objects precisely with sound
- InDubioProRubio 2y agoAnd every surface can be a speaker with lasers..
- uvesten 2y ago…and a microphone?
- Piskvorrr 2y agoYes. IIRC there were some eavesdropping cases where sound was read from a fairly remote glass pane.
- keville 2y agohttps://news.mit.edu/2014/algorithm-recovers-speech-from-vibrations-0804 https://news.mit.edu/2014/algorithm-recovers-speech-from-vib... How about through a glass pane, off of a bag of chips?
- Piskvorrr 2y agoOh, cool. That's a decade ago, though - technology must have progressed, surely.
- salomonk_mur 2y agoHow?
- deeel 2y agoOne step closer to learning how they made the pyramids.
- aduitsis 2y agoOne step closer to the sonic screwdriver from Doctor Who.
- consultutah 2y agoI'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 2y agoHolo display. A bucket of glass beads suspended in air.
- codelobe 2y agoHolo 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.
- nico 2y agoThis guy made something along those lines. He calls it "orthosonic lift": https://youtu.be/H-88gsWLTac?t=126 https://youtu.be/H-88gsWLTac?t=126 Also check out this "acoustic streaming" video: https://www.youtube.com/watch?v=-ZE2Mnzc7mA https://www.youtube.com/watch?v=-ZE2Mnzc7mA
- swayvil 2y agoThis strikes me as a good application for machine learning. Throw random waves at the object. Filter for useful movements.
- dekhn 2y agoJust saw one of these in the lab: https://www.beckman.com/liquid-handlers/echo-525 https://www.beckman.com/liquid-handlers/echo-525 it costs half a mil
- Optimal_Persona 2y agoNothing 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!"