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Compact holographic sound fields enable rapid one-step assembly of matter in 3D

science.org

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Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#21

Post by calebio »

This kinda reminds me of Terence McKenna talking about his experience with DMT.

He met "self-replicating machine elves". One of them told him, "don't be stuck in shock/wonder", and "do what we're doing".

Then he noticed that these 'beings' were creating various 'physical' objects in front of him with sound. Like they were "singing" these objects into existence. He called it, "glossolalia", or "speaking in tongues".

Through his DMT trips he apparently learned to use different sounds to create objects in front of him. Slight changes in the sound changed the appearance of the object.

Not that I necessarily believe him, but it peaks my imagination in fun ways.

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#23

Post by RangerScience »

calebio wrote: post #21

This kinda reminds me of Terence McKenna talking about his experience with DMT. He met "self-replicating machine elves". One of them told him, "don't be stuck in shock/wonder", and "do what we're doing". Then he noticed that these 'beings' were creating various 'physical' objects in front of him with sound. Like they were "singing" these objects into existence. He called it, "glossolalia", or "speaking in tongues". T…

There was an art piece (at Burning Man, where else haha) that replicated this to some degree - simply a chill couch/bed thing that'd comfortably fit about five, with headset microphones and a projector, which'd visualize the sound.

And... however they put it together, it was magic. You really did feel like you were singing shapes into existence with your friends.

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#24

Post by polishdude20 »

I can imagine this being used with some form of acoustically hardening resin. Put it in a container where the walls are ultrasonic transducers and then make the wave interact in such a way as to create acoustic hotspots that harden the material

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#25

Post by space_fountain »

polishdude20 wrote: post #24

I can imagine this being used with some form of acoustically hardening resin. Put it in a container where the walls are ultrasonic transducers and then make the wave interact in such a way as to create acoustic hotspots that harden the material

I've thought this would be cool to with radio heating. The wavelengths are smaller so you should be able to get better accuracy

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#26

Post by iseanstevens »

RangerScience wrote: post #23
calebio wrote: post #21

This kinda reminds me of Terence McKenna talking about his experience with DMT. He met "self-replicating machine elves". One of them told him, "don't be stuck in shock/wonder", and "do what we're doing". Then he noticed that these 'beings' were creating various 'physical' objects in front of him with sound. Like they were "singing" these objects into existence. He called it, "glossolalia", or "speaking in tongues". T…

There was an art piece (at Burning Man, where else haha) that replicated this to some degree - simply a chill couch/bed thing that'd comfortably fit about five, with headset microphones and a projector, which'd visualize the sound. And... however they put it together, it was magic. You really did feel like you were singing shapes into existence with your friends.

Ooh Fascinating!

I definitely did not see that one!

Any recollection about which year/camp/approximate location on playa/name of project/pics or similar?

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#27

Post by aetherspawn »

achalkley wrote: post #17
shadowgovt wrote: post #12

This is one of those cool ideas that is much easier to grasp with some animated visuals. I haven't found one for this specific application, but adjacent work in using sound to move small objects is seen at https://www.youtube.com/watch?v=XpNbyfxxkWE , https://www.youtube.com/watch?v=3MXVSdXZzpc , and https://www.youtube.com/watch?v=tzWP-NL3Lck Controlling the motion involves a lot of prediction and wave modeling, whi…

Reminds me of Kryptonian tech in Man of Steel

This is exactly what this reminded me of. I can forsee high fidelity solid, textured holograms just being some kind of colour changing liquid that's controlled with sound waves.

Perhaps 100 years into the future we will have dynamic furniture at a whim in our houses through some kind of similar technology .. or be able to materialize dynamic cooking pots exactly suitable for each dish, and then de materialize them afterwards (skip cleaning!), rather than store 20-odd differently sized pots.

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#28

Post by yazaddaruvala »

cwkoss wrote: post #18
inanutshellus wrote: post #9

Tea. Earl Grey. Hot.

It occurred to me last week that phrase is prompt engineering. He is giving the essential info to specify what he wants presumably because a shorter specification would yield a different result. I wonder if star trek replicators are deterministic. Does Picards frequent ordering of Tea Early Grey Hot make the probability of someone ordering "tea" more likely to be TEGH, and thus if Picard ordered TEGH frequently enoug…

> I wonder if star trek replicators are deterministic.

It seems like it would be deterministic (or similarly consistent to your fav cafe), or else Picard would no longer trust his prompt and try new ones (no different than you would try new local cafes instead).

What isn't clear is if "Tea. Earl Grey. Hot." is the same as "Hot earl grey tea, please."

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#29

Post by krapp »

cwkoss wrote: post #18
inanutshellus wrote: post #9

Tea. Earl Grey. Hot.

It occurred to me last week that phrase is prompt engineering. He is giving the essential info to specify what he wants presumably because a shorter specification would yield a different result. I wonder if star trek replicators are deterministic. Does Picards frequent ordering of Tea Early Grey Hot make the probability of someone ordering "tea" more likely to be TEGH, and thus if Picard ordered TEGH frequently enoug…

>It occurred to me last week that phrase is prompt engineering. He is giving the essential info to specify what he wants presumably because a shorter specification would yield a different result.

I think it's less that and more to illustrate Picard's personality traits and command style for the viewer - precise, methodical, practical, no nonsense. The computers in Star Trek are perfectly capable of understanding casual language (unless the plot demands otherwise.) Picard could simply tell the replicator what he wants when he says "tea" as if he were telling a waiter at a restaurant and it would work just fine, but he prefers giving an exact specification.

Re: Compact holographic sound fields enable rapid one-step assembly of matter in 3D

#30

Post by [deleted] »

xixixao wrote: post #16
rsingla wrote: post #15

Earlier quoted context omitted.

In the Supplementary Materials, there's a set of example videos of this work in action. In particular, the helix shape is pretty cool to see form in (essentially) the blink of an eye.

https://www.science.org/doi/suppl/10.1126/sciadv.adf6182/sup...

[deleted]
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