Peruvian Whistling Vessels are weird

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[@SteveMould]

This one was requested *a lot*. I hope it answers all your questions! It was great fun figuring it out. The sponsor is Jane Street. Take a look at the job opportunities they have: www.janestreet.com/join-jane-street/

[@khalilahd.]

Thank you! This video is so cool

[@lepwis]

@@khalilahd. c0g

[@shoelicker]

Amazing video thank you

[@killsalot78]

Hey steve, just want to say stereograms are cool and all, but whats even cooler are youtube's 3d features and actually seeing the model in VR/AR. If you havent played with a VR headset yet but love 3D like I do, you're definitely missing out!!

[@WetDoggo]

Wow i love the stereogram Problem is I watched that clip for 10 minutes on repeat and need time to reset my vision 😂

[@joshuab4586]

The “human whistle” definitely sounds like someone snoring, I could imagine the whistles being used in story telling

[@kakyoindonut3213]

Kids listening to the story: "HERE IT COMES!! THE PART WHEN THE PROTAGONIST SNORES!! " "YEAH YEAH THE SNORING PART!!! "

[@katiekawaii]

It really does! I couldn't figure out how it sounded like a person until I read your comment, and then it was obvious.

[@teaoanimar]

That was exactly my thought too

[@MLarce9]

It's a person whistling :3 Although I guess someone who doesn't blow much air xD

[@LautaroArgentino]

@@kakyoindonut3213 there's plenty of stories which involve characters falling asleep, there's no need to be sarcastic lmao

[@antoniosalazar6699]

As a peruvian i loved the fact that one ancient ítem from our past can still bring curiosity to a lot of people in other countries, and, to be honest i have always wondered how these work lol Love your videos, they are super interesting and fun.

[@kiara3099]

I'm also peruvian and I agree with you.

[@bjk7797]

How intelligent they were , interesting

[@panpollo3383]

I am peruvian... PERO HABLA EN ESPAÑOL PE CAUSA xd

[@kiara3099]

@@panpollo3383 he wants that the creator can read his comment, so he write his comment in english.

[@changchadchanamdong2668]

Are you a real peruvian or mixed as hell

[@Cheezed_]

I know how difficult making these transparent models can be after trying to put one together myself. Please continue doing what you do love your content

[@Battlefox64_RL]

being able to view it as a stereogram made me feel like a superhero ❤

[@SirAlbertoo]

Try making the real one

[@Freegame4.]

how'd it go?

[@sbinalla]

This is why I'm unsub and dislike the vid. He was stupid, X ray give him info and if you need bigger volume, then make a fucking cube 😒. It's handmade and probably a couple years old. I know that no one asked

[@apidas]

do you?

[@PocketsandOutlaw]

"I don't want to break it in half because they're hand-made" -cuts it in half still-

[@melodycaroline4520]

By hand

[@victoriasalcido2099]

@@melodycaroline4520 still. people want to see the skeleton of the whistling vessel.

[@Taleton]

And the magic GLUE comes in and save the day ... and the whistle !

[@anonshrimp8299]

Lol

[@virtualmartini]

@@Taleton yeah because of a work of art that's been cut in half and glued back together is good as new right? lol

[@PythonPlusPlus]

Steve Mould: X-Ray images handcrafted whistles to prevent breaking it. Also Steve Mould: Breaks it anyway

[@stefankrause5138]

Just like Surgeons in any Hospital...

[@Eidolon1andOnly]

Exactly. Seems bizarre to me. Could have found another way to make a 3D transparent whistle.

[@tinybabybread]

@@Eidolon1andOnly The problem was the 2D version not having enough volume to replicate the required force to produce the whistle. He could've just extruded it and made the 2D version thicker, still flat and "2D" but wider

[@rallok2483]

Why does it need to be '2d'? Could have just made the transparent version thicker and still see just as well through it.

[@riliash]

Making things transparent and watertight in 3D is MUCH harder than making them in 2D.

[@ianhumphres7821]

FINALLY! I'm a ceramic artist and have been searching for references on how these are built. I've made singer whistles, ocarinas, and Aztec death whistles...now I'll build some of these. THANK YOU THANK YOU THANK YOU!!!🤘

[@gumi1098]

Do you post them anywhere? Id love to see

[@ImANaidemoc]

I just learned to make a clay ocarina it was so fun

[@anonshrimp8299]

Oh shoot! Do you have a link to your stuff that you makes?

[@KJ-dq9cr]

Hahahahahaha smart man

[@PunakiviAddikti]

I would love to see a 3D CAD model of one for 3D printing.

[@aikumaDK]

Did a quick search and these can date back to 500 BC.. Peruvian pottery makers were damn clever to make this back then.

[@justindunlap1235]

That's pretty damn impressive.

[@aurelia8028]

pft. we have made pottery for like 10000 years

[@ameyabulakh3394]

Wondering how they made it.

[@hedgehog3180]

@@ameyabulakh3394 I mean it's fairly simple in principle, if you know how whistles work and know how water tension works then this is an easy concept to come up with, it's just combining those things to produce something really clever.

[@barahng]

@@aurelia8028 Pottery that convincingly mimics bird song though? Modern bird whistles weren't invented until around the 17th century. We've had wind whistles since the Ancient Egyptians, but a water whistle that convincingly sounds like a bird?

[@diegojesussilvaeduardo9347]

Dude, I grew up with 5 of these laying around in my house. Watching you holding one of my most precious belongings is just heartwarming. Greetings from Peru.

[@dumasyann]

Me : "Hey Good Idea, he will not destroy the vessel this times " Steve, litteraly ten seconds after : "Here is the vessel cut in half by hand" !

[@lootownica]

You can still put it on a display, but you have only one side xD

[@benwisey]

You can display both sides at once now.

[@lootownica]

@@benwisey So, he actually made it better...?

[@stevie-ray2020]

Perhaps Steve should see if someone could 3D-print things like these & although they may not be completely clear to see-through, even if they're semi-transparent you should be able to see any dark liquid inside them!

[@ziero1986]

@@stevie-ray2020 I've seen some 3D prints from sanded resin turn out really clear, but obviously takes a lot more work and effort for nice transparency.

[@taibat0by]

I was never able to whistle, I was watching this and thinking about the rounding where the air interlaps itself, I tried to shape my mouth, *and I was able to whistle for the first time in my life!*

[@stevenlynch3456]

SAME. I JUST NOW TRIED IT

[@hashfordalulz]

@@stevenlynch3456 Really? I don’t understand but I really want to be able to whistle!😢

[@W4iteFlame]

I still don't understand how...

[@kyv979]

@@hashfordalulz @W4iteFlame 7:04 You create the same geometry with your lower lip and lower teeth, and the air that you breathe will go into the gap and also over your lower teeth and "interrupt", making a whistling sound

[@jmchez]

To finish your whistle research, you should look into how the Aztec death whistles sound so much like a scream.

[@pushpapaul7002]

A friend of mine told me to look it up and I did....but unfortunately at 3 AM. I was horrified for a week lol

[@swagmanexplores7472]

Yes

[@co2_os]

Oh I definitely wanna see that

[@ChrisLeeW00]

I 3d printed one, it is terrifying. They also make ones that sound like a jaguar and it is very convincing, artisans sell them in Mexico City.

[@fungustheclown666]

@Sabizos what do you mean?

[@HomebrewHorsepower]

I love the fact that the original and the cut in half version's tones are roughly an octave apart. That's what I would have guessed, but it's neat to hear it in a real physical form.

[@SoraShiroLLelouch]

Reverse engineering is so cool, more fascinating is how such whistles were created in the first place🤯

[@davidhirt9129]

I find that quite impressing too!

[@julianbell9161]

Probably thousands of years of pottery makers just trying different shit until they landed on a design that yields something interesting, like this one.

[@Foivos_Apollon]

like low-key it kinda looks like someone was making 2 teapots stuck together

[@leirekorsmo7069]

Stirrup vessels are another type of interesting vessel from the region that could have been a place where acoustic properties of multi-chambered vessels was discovered. They are also highly unique and interesting in their own right definitely worth looking up

[@lilmike2710]

Could have been much the same way as many fascinating inventions came to be. Quite by accident.

[@marcteenhc9793]

0:02 Please have this person consulting with a neurologist!! That hand shacking is not normal in people younger than 65!

[@Ango825]

Being from Perú myself, this video was very very interesting. I owned one of those a while ago, but never truly knew how it worked, besides assuming it had a little whistle-like mechanism inside. Thanks for the video!

[@patymelo3238]

Como se chama esse objeto?

[@Giuseppedibos_oficial]

@@patymelo3238 Huacos

[@kingcharlie5909]

Steve: I won't smash this beautiful handcrafted thing Also Steve: I'm gonna cut it in half by hand

[@Kai_On_Paws_4298]

Well he isn't smashing it

[@mr.engineear0987]

Because the X-ray image wasn’t helpful for Making the 2d version

[@Absolotle]

2:40 - The spinning ballerina illusion

[@mikeselectricstuff]

If you want something x-rayed, just take it to a local vet ( Yes I've done this)

[@eDoc2020]

Says the person who's had how many X-ray machines?

[@soundspark]

Do they happen to have a CAT scanner?

[@denispol79]

Wouldn't contacting the people that created the whistles be easier?

[@reggiep75]

Do the Aztec Death Whistle next! That's a great whistle and something to make yourself some nightmare fuel, if you need it! 😉👍

[@Poodleinacan]

Yes

[@tracischmidt8593]

Inca's made these whistles. Not the Aztecs

[@brandonnguyen6718]

@@tracischmidt8593 Yeah they did. But most people don't really know the difference.

[@jeremy7707]

@@brandonnguyen6718 whole different country actually! i wish they did know the difference :/

[@brandonnguyen6718]

@@jeremy7707 It's mainly because of the name. It was named wrong by the people who first found it, and even though now that we know who actually made it, the name stuck. It's like Chinese water torture, which was actually an Italian invention.

[@ranjanbiswas3233]

The Incas were highly intelligent people.

[@zaco-km3su]

How can you see this in 3D? The Peruvian potters have refined their craft to the point where they can imitate different birds! Phenomenal!

[@endingpop]

One option for this sort of thing is to get a full CT scan of the device (there are industrial CT scanning companies that do this). You can export the geometry as an STL and print it directly out of a clear material. Some SLA resins have very good optical properties and might work for your purpose here without having to reduce the geometry to 2D. I do think the 2D versions do help to make it easier to understand the concepts sometimes though.

[@GoldenAura32]

As a guy that fixes various Xray stuff in the medical field I do many many 3D scans before I sign the equipment off to be used on people again. If you know a guy that does the same stuff I'm sure they would gladly take in whatever you want scanned to use as a phantom to prove accuracy of a system. That's what I do at least.

[@anon_y_mousse]

That would be pretty cool.

[@warrendourond7236]

There’s a dude in Peru who makes these, watching this video, saying to himself…. “Aye Dios! Dave you could have just asked me how it works!”

[@ToninFightsEntropy]

You could use a fluid with less surface tension next time when that's a problem. I found isopropyl worked way better than water when I was trying to print spirit levels the other week.

[@tissuepaper9962]

That is literally why they're called "spirit" levels. You use "spirits" inside.

[@wobblysauce]

Bit of washing liquid.

[@eideticex]

Try mineral spirits. It flows so easily that a folded paper towel or rag like you would for other water-like chemicals just doesn't stop it.

[@victorterancas]

@@eideticex But it would get dirty i think. And cleaning that seams very difficult.

[@A_Frog_from_mars12]

@@tissuepaper9962 even just adding a small drop of dish detergent to the water will break the surface tension.

[@ragecage295]

its a shame u dont know any glass blowers who could take these xrays and make 3d glass models for you...

[@zacharycampbell1002]

Always happy to watch a new edition of the ongoing Saga of “Steve makes 2D water things”

[@DavidLopez-nv5uz]

"There is no escape, only glugs."

[@Eclipse_Sfs]

I like and no replies? Let me fix that

[@justchynna]

I get the bird ones - but to have a vessel that resembles snoring sounds of a human is insane . 🤣🤣🤣 like the geometry & science behind it is amazing .

[@melis6294]

I'm Peruvian, I didn't even know these artifacts existed.

[@thegoodwitchluzura]

These are probably Caucasian in origin, not actually Peruvian.

[@spindless]

I love this channel so much. Interesting and funny and just a really balanced, wholesome account. 5:55 is my favorite part though. “There is no escape. Only glugs,” but very quickly moving on just makes it so much better 😭💀 have learned a lot of wild things and uses for them from this channel. Love ya man, keep it up.

[@SteveMould]

Thank you!

[@demondude1237]

2:21 Kinda hard to do the whole "3d trick" when I've only got one eye. Note: The previous sentence is an example of self-deprecating sarcasm. It was not and is not in any way, shape, or form intended to insult or otherwise verbally assault the creator of this video. Note 2: For anyone that's curious, I lost my left eye to meningitis when I was 5 months old. I didn't lose it to some wacko with a gun, or had it gouged out by a shard of glass in a car accident. Just plain old surgery to save a little baby's life, nothing special.

[@khalilahd.]

I’ve never even seen something like this. So cool! I love that I never know what I’m going to learn about when you post but I’m never disappointed 😅🙏🏽

[@InTheMindOfficial]

I seriously think Steve has one of the best educational channels, his stuff is always equally as entertaining as it is educational, and he doesn't even have to do anything super silly to keep it interesting, he's just that good at teaching

[@thelogician3845]

You are now becoming like the ray mak guy lmao. I see u everywhere.

[@bigseven8227]

Video suggestion: Death whistles. They actually sounds like a demon screaming. The Aztecs invented them and used them for special ceremonies like Day Of The Dead. They also use them in war against other tribes. Not only that but they played hundreds of Death Whistles in war). The video where I learned about death whistles was from "Mileán Ó Raghallaigh" on youtube. I don't actually know much about them. But I'd like to see how they work in a 2D version

[@restorer19]

Thank you for the *cross-eyed* stereogram! I have one semi-lazy eye and I've never been able to see stereograms by the opposite method ("staring off into space"), so I could only guess at Magic Eye puzzles by working out the inverted version.

[@adrigax]

I can look at stereograma both ways and in this case, both work. But it makes the model turn the other way around.

[@restorer19]

@@adrigax Yeah, if I relax my eyes to unalign them positively, I can sometimes get very brief convergence locks, but my bad eye tends to start drifting up and to the right, which ruins the alignment very quickly. I can get them to lock in vergence much better if I go cross-eyed, though - and the accommodation (focus) is better, maybe because I'm near-sighted in my bad eye.

[@RICDirector]

Lol...I have amblyopia bilaterally, and there's really seldom any 3D for me. Crossing my eyes gives me two well separated images that do not mesh, and as for the staring off into space...well, no. Unusually though, both eyes have full function and while they can work together even whilst wandering (ex, I can watch the road and the rearview simultaneously), it's a conscious thing. And since using a smartphone, it makes typing accurately very difficult; the responsive bit for H, for instance, isn't quite where my finger thinks it is, so I get a lot of Js instead. Frustrating but fascinating!

[@restorer19]

@@RICDirector I've never really been sure if my effective depth perception and peripheral vision (enough to pass transient tests) are because I have partial correction from wearing a patch on my good eye for hours each day as a kid, or just a quirk of my particular amlbyopia. It does give me a good idea of which image in double-vision to treat as the "false" image, as the one from my bad eye is far more transparent, and gradually disappears if I keep my gaze fixed. I do still sometimes have to "cheat" on [DMV] vision chart tests if I don't have a valid opt*ist note on hand, but my peripheral vision and depth perception are relatively good for someone with 20/100 vision on one eye, when that eye also tends to fade to black in a strictly-static gaze over 15-30 seconds. ;D ... (that's a pun of an emoji) Edit: typos.

[@bountyjedi]

I have normal eyesight, as far as I know, and I've never had much luck with the "staring off into space" stereograms, yet the cross-eyed ones work just fine.

[@alexander_nunezf]

Great vid...another whistle that is cool af and has prehispanic origin is Aztec death whistles.When they are blown, they emit a frightening sound which resembles people screaming and suffering.There are others which sound like jaguars or birds...

[@theofficialczex1708]

It might help to use a 3D printer to produce wider versions. The water-tightness isn't perfect, but should be good enough, and you can always coat the parts in epoxy resin to seal the small gaps, relying on silicone for the seal between the printed parts and the acrylic.

[@drnarwhal2888]

I wish I could find a file to print one of these myself but as far as I can tell, nobody has made one yet.

[@theofficialczex1708]

@@drnarwhal2888 Steve's done the modeling himself on his transparent version. Find a frame where it's mostly planar with the camera, take a screenshot, drag that into your CAD software of choice, trace the elements, extrude, job done.

[@RadeticDaniel]

as soon as I read epoxy my mind jumped to the idea of a collaboration between steve and xyla foxlin

[@luke_fabis]

3:53 makes me wonder what a 4D whistle might be like. What would its properties even be? How might fluids flow in a 4D structure? Would it be possible to simulate the sounds it produces, and would those sounds even be the same in different 3D slices of 4D space?

[@mrrd4444]

Have you considered asking the craftspeople who make these whistles how they understand how it works? I always find its most informative to have the people who MAKE something to explain it.

[@MrTachyon]

And paying them to make things fair.

[@HugsmadeDrugs]

@@MrTachyon actually one of those vessels sells for 90$ on online websites, that's around 350 soles which is almost a third of the minimum wage in Peru. That's pretty good businesss right there

[@toastedt140]

@@HugsmadeDrugs Ah yes, the classic "exploitation is justified because its screwing them slightly less than their wrecked economies already do" mindset

[@MrTachyon]

@@HugsmadeDrugs ..The people reselling them get rich but the people who make them don’t get their fair share.

[@HugsmadeDrugs]

@@MrTachyon who do you know they aren't selliing themselves, i know plenty of artisans who sell online outside Peru because this kind of crafts are very sought after outside the country

[@Bag3l01]

This woke up my cat

[@DqwertyC]

Finally, my time as a middle schooler learning to cross my eyes at will is paying off! Great video as always

[@SteveMould]

Same!

[@Goatman_Gamer]

“There is no escape. Only glugs.” If you made that a T-Shirt I’d buy it.

[@alexanderlenschmidt6567]

Smashing just felt wrong, so I cut it in half! Problem solved i guess?

[@NickRoman]

It's interesting that likely the Peruvians making these things have no idea about how to explain the fluid dynamic physics (surface tension and all that), but they know how to construct these whistles to do exactly what they want them to do. What if Steve had just been able to ask one of those people how it works?

[@RandomBogey]

The one at 0:17 woke up my sleeping cat and stopped the other dead in her tracks, so it’s gotta be bird-like enough to count for something

[@supermarco2012]

Other peruvian whistles (Huacos) : kzbin.info/www/bejne/nZbOp4CeZb-Yfbs

[@AdrianCuyubambaDiaz]

As a Peruvian I clicked on the notification as soon as I read "Peruvian" Hi Steve

[@rbw3000]

Lmao same

[@lukealadeen7836]

Surprised that people came up with such an amazing device, imagine what a common person must have thought when hearing this back in the days

[@WhichDoctor1]

i literally just came across a video of a Peruvian man using these Whistling Vessels and was like "wow these are soo cool i wander how they work". And then i saw the first vid on the recommended tab was a Steve Mould vid explaining it ^-^. Thanks Steve

[@kruksog]

I love how this has become the "transparent replica" channel. It's great and it cracks me up every time you do it.

[@Marlosian]

If only Steve would start embracing the third dimension. An entire video of why a flat model didn't work, but no thought on making a wider one lol

[@anon_y_mousse]

You should take a trip to Peru and learn how to make these first hand. Then you can make and smash all the examples you want. Would make for a fun video series, especially if you used some less than useful methods for smashing them. Perhaps resorting to rapid hot disassembly.

[@SharpAssKnittingNeedles]

Best line ever: "There is no escape, only glugs." -Steve Mould, 2022 The deadpan stare sold it 😂

[@misteryA555]

Me when the submarine I'm on has been hit by a torpedo and I know I'm going to die under the water

[@Keoffry1]

@@misteryA555 When you accidentally loaded up Legendary mode, and you're the rest of the Goettge Patrol

[@SharpAssKnittingNeedles]

@@misteryA555 so dark, why am I laughing? 🤣

[@pattyspanker8955]

Creepy pastas are getting _rough_ 😳

[@xenogorwraithblade2538]

Read as "There is no escape, only drugs." Immediately made me think of my early 20's.

[@Pyriphlegeton]

2:16 I never knew being able to go crosseyed has such a use! That is so cool! I'm blown away that I can see it in 3D!

[@mlatpren]

If you want to see more of that use, I'd highly recommend searching for cross-eye stereograms. There are even paintings that reveal an image only when cross-eyed! If you can "de-focus" your eyes so they're parallel (sometimes called a thousand-yard stare), there are also stereograms for that. VR headsets do something similar too. The lenses redirect light so that you can view parallel-eye stereograms without de-focusing your eyes, and the screen displays a constantly-updating parallel-eye stereogram!

[@quinn.mcginley]

@@mlatpren I first tried to do the thousand-yard stare and wasn't able to, then I realized we were supposed to go cross-eyed anyways. Pretty cool.

[@Focke42]

But the immediate cut to a singular image at 2:54, while going crosseyed, was totally irritating:(

[@adamferencz460]

I found something curious. I am nearsighted so if I take my glasses off and de-focus my eyes I still see close things crystal clear (because my eye can't focus to distant things so it just gives up on it and stays in close focus). This way the image is so much bigger and much eaiser to focus. If I put my glasses on I can't do this since I become able to focus to the distance and the 3D picture becomes all blury. In the same way if I do it cross eyed without glasses for some reason I can't focus my eyes but glasses on cross eyeing it, it works perfectly.

[@davidgro2000]

@@mlatpren If this one at 2:16 is viewed wall-eyed (focus in parallel) instead of cross-eyed then it's still 3D, but rotating in the opposite direction!

[@JessWLStuart]

What would happen if you made the connecting section with a round pipe instead of the flat plastic? Perhaps that would produce warbling?

[@TheDeepDiveLLC]

Me: goes into stereogram vision Steve: goes back to regular video without warning Me: 😵

[@gjosh2086]

I have been fascinated by these and the Aztec screaming whistle since I was but a young buck. Awesome to see These topics covered by one of my favorite youtubers

[@VascovanZeller]

My man just dropped the stereogram on us, like it was nothing. Blew my mind, it would be worth a video on its own!

[@gubworm3241]

Hello, this is the first video on your channel I've watched. I'm just wondering something - if you're trying to understand how these things work without breaking them, why not get in touch with the craftspeople who make them and ask? I'd assume they must know how how they work.

[@alamazy]

Great vid as always ! Many radiologists would be glad to try and do a full 3D CT scan of your suprising objects, so that you can fully appreciate their internal structure and 3D-print them. Well, I'd gladly do it if you happen to come by Paris 😁

[@SteveMould]

Hi, thanks for the insightful info, really appreciate it. If you're interested in joining my Discord where we chat through ideas here's a one time link: discord.gg/P2QMZSsjhm

[@brentdobson5264]

Stunning ...brilliant ....beautiful ...conceptually and artistically ... these ceramic art whistles ...and ...What Sounds ! ...they produce .... ( must ? ) have been reverse engineered from the specific jungle birds they are reproducing . Phenomenal and then some . ❤

[@cheaterman49]

2:15 OMG STEVE THANK YOU SO MUCH!!! It's been so many years that I wished someone made use of this to show us some 3D, while we're waiting for all the expensive hardware to come down in price!!!

[@joshs5577]

Actually it’s been used extensively in the past. There are artworks that have elements that can only be viewed stereoscopically and is the basis behind all of those magic eye gimmicks that was popular in the 80s and 90s. Additionally novelty devices called stereoscopes have been around since the late 1800s. They worked by having two photographs of the same image shot from slightly different angles placed inside and the user would then look through the viewfinder and see a 3D image.

[@cheaterman49]

@@joshs5577 I meant on YT 😅

[@joshs5577]

@@cheaterman49 In that case do you remember the Google Cardboard. Same thing but with KZbin.

[@scorpis2127]

Seeing all the effort that you had to put in to crack acoustics of just one of these puts me in amazement and lots of respect about the intelligence of Peruvian ppl who crafted a customised toy whistle each for a typical sound in nature back then and how similar to it!! They probably had no high tech tools back then like now to assist them, just pure intelligence, craftsmanship and their love for perfection! Its unbelievable!!🙏

[@jmchez]

I wish that you had also bought the wolf one. It really does sound like a howling wolf when you tilt it. The whistle inside that one must be rather different than the other ones.

[@ericeaton2386]

Oh, where is that sold? I would love to have a howling wolf jug and support an artist

[@justin.booth.]

I agree those stereograms are very useful! I use them to view protein structures and they are genuinely essential for me to understand how things are laid out in 3D.

[@gulpbiys5705]

This kzbin.info/www/bejne/naGvnmlvasaYjq8

[@lokeshchandak3660]

I recently learned how to see them and they're wonderful...

[@KordanorsGamingLair]

I think that would have been a nice opportunity to support some traditional communities which are creating these things. I could imagine that quite a few people would want to buy these now from a legitimate source where the money ends up in a good place.

[@JamesOKeefe-US]

OMG, the stereogram works. This is why Steve's videos are so amazing, so many "wow" moments. Thank you for this!!

[@Freestila]

How did you do it? I can do magic eye pictures, but two videos? How should you do that?

[@JamesOKeefe-US]

@@Freestila So how I do it is relax my eyes and let them cross slightly. That will result in basically 2 sets of images each with a right and left video on them. Try to overlap the middle two video images (basically the left video in one with the right video in the other). It can be tricky so it might help to move your phone or laptop closer or farther away from you. But for me it generally quickly "pops" into a single 3 dimensional image that is moving and in focus. It's hard to describe but I hope this helps!!

[@lovrebabajko]

@@Freestila I put my phone 15cm from my face and focus on something roughly 70cm in front of me. Merge the middle two of the four images in the middle, if you can do magic eye you can find it.

[@stephenbenner4353]

I came into this video expecting more of Steve’s signature transparent models of opaque things, but I was surprised that he added x-rays to the mix, and even stereoscopic images.

[@babydoey2920]

Wow, that stereogram blew my mind! Keep up the great work man, love your videos!

[@JohnDBlue]

Same, I was not ready for that

[@elizabethkidder3535]

If you look closely at 3:13, you'll see the number "14". I wonder why it has a 14, considering it is handmade.

[@thepopulationofkazakhstan1116]

Maybe the maker put 14 so they know to put the whistle in the right pot

[@elizabethkidder3535]

​@@thepopulationofkazakhstan1116possibly! Never thought of that! My apologies for a very late reply, I never got a notification for this comment haha.

[@TheTonyMcD]

2:15 OMG, that was the first time I was able to see a stereogram! I could never see the magic eye things, and I tried for so, so long. It only took me about 15 or 20 seconds here and I was able to see this in 3d. It was so freaking awesome.

[@mrterry1756]

Lol, I had a similar story but the other way around. I remember watching these "fake 3D effect" videos and images that can trick your brain into thinking it's looking at a 3D image, by just crossing your eyes and focusing both images with each eye at the same time. But I didn't know it was called "stereogram". Also, to me I found quite difficult to recreate this stereogram, as the image was spinning around, and when it got to the back part of the whistle, my eyes just moved with it and lost the focus to the 3D image. I don't know if I explained myself correctly. English isn't my first language.

[@vizthex]

so i googled it and they were made in maybe 300 BCE or so, and i wanna know how the fuck people figured out how to make these?

[@HalotasM]

Greetings from Peru! Love Steve's content. Keep it going!

[@c_12123]

I thought I was literally the only one who could go crosseyed and match images like that. I do it all the time with recurring patterns like bathroom tile, curtains. I never thought about using it to simulate something in 3D like that though, that was really cool.

[@solidacid1337]

Here's a fun illusion: from 2:05 a for a while after, which way is the pot turning? left or right? Some people can even "decide" a direction and it'll look like the pot is turning the direction.

[@Species1571]

I saw an exhibit at the Science Museum in London that demonstrated this with a rotating cube. They tell you to close your eyes and look again a few times. Each time you look at it your brain chooses a direction to interpret it as moving. It is because of the ambiguity between which lines are in front and behind.

[@melodyhart1331]

I have to say,these whistles must have high tech behind them originally, but enough of the knowledge survived through the passing down of the art for generations.I think those are so beautiful .

[@NoTimeLeft_]

Ok Steve you can tell us the truth. You're changing the name of the channel to: The amazing world of whistles with Steve Mould

[@SteveMould]

It's inevitable at this point

[@NoTimeLeft_]

@@SteveMould In the next video I attempt to use a Peruvian water whistle to hail a taxi in NYC. Coming later... One trick the whistle cartel doesn't want you to know! Love you Steve!

[@callmejeff4863]

As a nerd who has played Shadow Of the Tomb Raider thousands of times, I can confirm

[@DoggoYT]

The cross-eyed thing is really cool. I've always had problems with double vision and using that disadvantage to view it in 3d is really amazing. Thanks for that!

[@ladyrachel13]

This is a cool video. South America is full of enchanting places and things. 💖

[@bobbiesterling574]

"i dont want to break it" *proceeds to cut it in half

[@cyruskhalvati]

Sound Wobble from the gluggs. Water shaking effects the air currents, and that shake pattern is based on the interior geometry. Edit: My hypothesis was correct

[@ToppyTree]

Ooh they sound so nice. Could have been interesting to talk to someone who makes them but great video!

[@IndigoWhiskey]

you know it says alot about how you break down a subject that i can still follow along just fine having been awake for four days. always found it frustrating when someone would profess themselves to be teaching something or explaining something and you never actually get the answers to the how because it often gets left in a very stock way of explaining something without every bothering to break down each functional variable. great work

[@somedudesstuff801]

Shame you had to cut the one. Since the 2d version didn't work right, I wonder if chemistry glassware would have been more effective.

[@atomictraveller]

no, it's very simple matter of acoustic volume. helmholtz resonance for a cavity :)

[@scarletevans4474]

Viewers: Please, don't break it, we will X-ray it for you! Steve: *still proceeds to cut it in half* :smug_face:

[@elladriver7357]

Steve has gone from "pouring things out of beakers" guy to "2D fluid mechanics " guy :)

[@alfiegoldsworthy7132]

I love that transparent models are now the staple of this channel, keep up the good work

[@diozaur5749]

Incredible, the engineering behind it! Not only it makes wobbling whistle. But it’s closely replicated the chant of some known tropical bird! I can’t even start to imagine how one come up with inventing one of those! ?

[@raspberryjellydoughnut5727]

You could have also provided links of where for to purchase authentic hand made Peruvian whistling jars for those whom never could whistle LoL 😆

[@KafshakTashtak]

I had a large grin on my face when you showed the 3d cross eyed thing. It was such a nice idea by combining that and an X-ray rotation.

[@lodewykk]

After all that Steve STILL destroys his handmade whistle 😂😂

[@emilyfarfadet9131]

Such a great channel. I'm a Mold maker, and as such I spend a lot of time thinking about negative space, surface tension, pressure and vacuum effects- these cross sections are always fascinating to me.

[@venus8738]

After watching this video, it's hard not to appreciate the crafts of these traditional inventors were genius in their respective work of art

[@Mikee512]

Holy crap, that stereogram thing TRIPPED ME OUT! I didn't know what to expect: I was moving my phone back and forth, in and out, in front of my face like madman when suddenly the 3d image just snapped into existence like a SHOCK, my phone disappeared and I was in a weird 3D VR brain mode. I mean, I think it was only shocking because I didn't know what to expect, but that was trippy!

[@jacobhernandez4494]

When looking at a stareogram Are you supposed to have the left eye look at the right image, and the right eye look at the left image? Or are you supposed to separate it with your hand so each eye is only looking at the image in front of it?

[@gardeotocus]

I became aware of these things about a day ago, and it made me intrigued into how they worked, so thank you so much for having made video about it.

[@yetanother9127]

One could probably devise one of these that has three or more chambers, allowing it to sound different notes depending on which way it's tilted.

[@Nosgamer1000]

At this point Steve has developed an obsession for transparent 2D versions of weird vessels.

[@WanderTheNomad]

That's just him developing his own brand/image

[@yousmehratube]

Too much engineering for a problem that can be solved by just the common sense. Although good video for little kids.

[@fribigy47]

2:34 which way is it spinning?!