Submarine Implosion | High pressure chamber test!

[@HydraulicPressChannel]

Here is link to the printing video where we make the submarines kzbin.info/www/bejne/bIWqeKWMha9qhtk They were surprisingly tough!

[@konstantinosgunparts1875]

Did you ever crush stuff worth over 10.000 euros?

[@weld4200]

I FUCKIN LOVE THAT SHIRT

[@weld4200]

It would be cool if you rele went to the ocean with these and attatched maybe 20 of them onto a 2 mile cable and threw them overboard and using a microphone of some sort . Listen for the sound of the mini implosion ..since they are different thicknesses i suppose it would make different tones as they implode

[@Chris-rg6nm]

What do you know?

[@LionAndALamb]

You should have considered using a composite, I hear that it is much cheaper that way 🥸

[@MrSaywutnow]

I know I'm not the only one who wants to see this repeated with carbon fiber submarines.

[@ZunamiRevert]

Carbon Fiber is not as strong as Titanium. Even then it's been proven that High-strength alloyed steel is the strongest option as that's what our subs are made up today. Here's the other fucked up part. The type of Steel that's used is HY-80. It's what the US uses on our subs. It's only $700 a ton from what I could find for commercial prices. I can't imagine he couldn't find a reliable and cheap source for this steel. The sub weighed around 10 or so tons. I'm not gonna break down the whole thing but just know that it was more than affordable for him, he just enjoyed doing experimental shit thinking he was gonna revolutionize tourism with high cost, high risk, low reward methods. This only proved that we have safety standards for a reason. If we could use carbon fiber reliably then we'd already be using it for that type of diving. Any submersible is set to strict standards. Worst part is he did it in international waters so he wouldn't be subject to specific laws, meaning he knew what he was doing, and that he could be taking 4 people to their deaths unapologetically because he was a thrill seeker.

[@terminalvelocity4858]

The same result. What do you think is going to be so different?

[@MrArpSolina]

@@ZunamiRevert America's Ohio-class ballistic-missile submarines have been in service since 1981 and have a reported maximum depth of 800 feet (243 m), though it's been widely reported that they may actually be capable of reaching as far down as 1,500 feet (457 m) before their hulls become compromised. So even the US Navy's best submarines couldn't get anywhere near the wreck of the Titanic.

[@BillySmokes]

Too soon lolol

[@Incib3]

Hahahahahahahahaha

[@justskip4595]

I never expected to watch a video like this where a guy is trying to implode miniature submarines but here I am. Finished the whole video and it was more exciting than any video I have seen in a week.

[@bz938]

Same

[@normanschwichtenberg8519]

Same here 🤣

[@thepalehorseman8775]

*Finnished the whole video

[@TwoFeetDown92]

“Science and shit” “jazz hands”

[@FrostyGorillaYT]

Same 😅

[@HermesTheLoser]

Crazy how even in slow motion, the submarine is just instantly flattened in 1 frame.

[@RacinZilla003]

For that one frame, it was probably also scaldingly hot

[@alihms]

​@@RacinZilla003It was far beyond scaldingly hot. It was vaporizingly hot.

[@AmishGhosty]

@@alihms as hot as the sun, incinerates anything that is touching oxygen

[@Pozitiv_vybez]

.0000000000000000009 of a frame😮

[@The777brown]

Can't wavedash that precise

[@Jolly_Green23]

The fact that this video was made less than a year before this topic was all over the news is awesome! It's nice knowing it's not just pandering to current events, and I'm happy I was already following this channel.

[@tylerdowling]

Can you make a titan submersible replica and expose it to repeated pressurization cycles to show what likely happened?

[@MixYourWay]

Please do!!

[@hyy3657]

carbon fiber vs steel. how much they can hold up?

[@jannejohansson3383]

Almost impossiple to make good test's, but as we knew, carbon fiber broke's like paper and it have's limited lifespan. Steel could keep getting hit's and if those are under the known limit, no effect caused. Titanium deform little bit same way than aluminium and it's again similar to cf. It's same as lead took deforming from small hit's and moving material away that spot to another..

[@Beltfedshooters]

Yea that would be awesome.

[@3nigma.3nc]

No.

[@Cheeto_Fingerz]

I’ve seen this video trending all over TikTok and Facebook. This does a great job at showing exactly how those guys in the sub went out. No pain, no suffering. One second they’re all sitting there unsuspecting… then about 2 milliseconds later, they simply just cease to exist. The implosion at that high of pressure would have ignited the air inside the sub, kind of like a diesel engine piston. They were gone before their brains could begin to comprehend what happened.

[@ivankuzin8388]

@@Maskharat James Cameron mentioned this in one of the interviews - he said that he got from his sources that they have dropped weights and began resurfacing shortly before comms were lost, he also speculated that they might have heard the hull delaminating.

[@luciano2166]

@@Maskharat James Cameron told this in one interview.

[@brandenburg2388]

The craft actually landed on the ocean floor and the crew were banging the walls to send SOS signals. Before long, the hull got crushed under the immense pressure at 12,000 feet.

[@azimuth9819]

​@@brandenburg2388nobody thinks that

[@schawo2]

@@brandenburg2388 no.

[@stevehodgkins8801]

All of a sudden, YT feed is flooded (pun intended) with implosion videos. These guys deliver every time. Glad that they actually did the work that has currently become so relevant. I have no doubt that Hydraulic Press Channel will do a carbon fiber hull test here soon.

[@ReigoVassal]

Mine too. But I purposefully want to learn more about what if submarines go to incredible depths

[@RichardCox0]

My recommendations are full of submarines and boats

[@chilomine839]

The algorithm will decide your fate.... Or something.

[@puffinpuncher]

@@teflontelefon Sitting in a submarine when you hear those fated words: "Welcome to the hydraulic press channel"

[@shane99ca]

Too bad Stockton Rush didn't.

[@easygoing2479]

It's amazing how one little tourist trip down see a sunken wreck can bring up all these pressure tank experiments onto our KZbin feed.

[@tazjr0]

This aged extremely well.

[@RyanDiBui]

Crazy, I haven't noticed the video post date until your comment.

[@DuelWielding2DohDoh_BiRDS]

was gonna text that 💀

[@tps64]

really just proves how much of an issue this already is and dude fucked up by skirting established norms

[@TheVenominside]

They smiled when they signed their death certificates and waiver

[@kertaspaper94]

And its less than a year old

[@terminalvelocity4858]

To put in perspective for the Titan crew which was over 1.5x the depth that this video depicts. There were millions of pounds of pressure pushed onto them when the breach happened (yes, millions of pounds, roughly 6000psi at that depth). They were instantly turned into jelly and cooked from the pressure combusting the hydrocarbons in the cabin, and all of it was pushed out into the ocean through any point on the sub that was compromised. There is literally nothing of them to be found, nor will ever be, sadly.

[@AlonsoRules]

they were dissolved

[@batman4864]

that all happened in less than a millisecond

[@logitech4873]

@@batman4864 Not so sure about that. The diameter of the submarine was 2.8 meters, so the water would have to travel 1.4 meters in less than a millisecond - averaging more than 5000 km/h.

[@marcwilliams9824]

​@@logitech4873C'mon, everyone online is saying "less than a millisecond" so it must be true... ;D

[@seraphik]

​@@logitech4873 if you think it's water rushing in that killed them, you missed the point of this vid. it's not so much like water rushing in as it's more like the empire state building suddenly falling on your head. they were squashed the instant the pressure hull failed. the sub immediately flattened the way the model did. even if that didn't crush them, the sheer pressure all around them would have compressed them to paste.

[@Lexxo777]

Finally, a good demonstration of how it imploded. Hope you are enjoying the high traffic to this video lately..

[@manuell3505]

I think an implosion looks different...

[@Oscylot88]

This isn't very accurate

[@ChullsterOG]

I think the best bit was the first one when you see the air bubbles shrink then disappear as the pressure rises, an excellent visual demonstration of physics.

[@saschafunk1644]

In our foundry in Germany, we are using an procedure to remove pores out of metal castings. This procedure is called HIP (heat induced pressing). The casted object is in an chamber filled with water. The pressure is increased to 1000 bar (14.504 psi) and maintained. Now the water is heated up. The temperature is increased to 300 centigrade and maintained. The water stays liquid due to the high pressure. Pores and inclusions in the metal rea now compressed.

[@uppsala7347]

We used the same process for eliminating voids when printing in Titanium (Ti6Al4V EBM). We called it HIP for "Hot Isostatic Pressure" however. HIP would increase fatigue life and ductility at expense of strength.

[@pseudotasuki]

That would probably work really well for 3D prints, as they tend to have many pores and voids.

[@jackmclane1826]

Yes... well known. Just for completeness: HIP means Hot Isostatic Pressing, or Heißisostatisches Pressen in German. Same appreviation...

[@charmio]

Woah! Never heard of that. Sounds extremely dangerous to be using water though; steam explosions. Any idea why they don't use an oil? Also what parts are you making that necessitate all voids being removed? Sounds like some pretty high tech stuff!

[@jackmclane1826]

@@charmio The casting is cold and already demolded. The water is only the pressuring medium inside the tank. No risk of steam explosions of any kind. Sometimes they use oil, sometimes even only gas pressure. Water is less messy than oil and a lot safer than gas in case of a failure of the pressure vessel. It is a quite common production method for ceramic parts and fiber reinforced plastics parts, also.

[@RoyaltonDrummer922]

This miniature underwent more testing than the Titan

[@tigrecito48]

testing? whats that? i work for ocean gate.... i want to assure you that safety is one of our top million priorities... number 1 being cash

[@jacklawer6389]

Good one

[@Azhural01255]

@@tigrecito48 false, it should not happened in this case...

[@pianielmdk]

@@Azhural01255 sorry you didn't get the joke

[@KINGKAYLEB-vq2tb]

@@Azhural01255 r/woosh

[@snakeinthereeds]

This video is not only great for showing implosion, but also decompression sickness. When the pressure in released afterwards, the seemingly clear water and walls suddenly all bubble up again as the gasses in it expand, it's pretty much what happens in the blood and other tissues of a body that surfaces too fast.

[@sihamhamda47]

I've seen some videos about scuba diving, the diver often needs to be put in a hyperbaric room for a couple hours after resurfacing

[@bigman7293]

​@@sihamhamda47oh they definitely DO if it's over a certain depth, that I don't know

[@SpamSucker]

@@bigman7293 Pretty sure the commercial surface divers I worked with started using chamber time (in addition to decompression stops during resurfacing) starting around 50 ft depth. They also factored in the time spent at that depth, often a minimum of one hour.

[@jordannewsom4578]

Yep, your exactly right (level 2 advanced open water diver here).

[@deathstar008]

It's crazy to think that they did this 10 months ago and if OceanGate had done this much testing, we maybe wouldn't be talking about it or watching this...

[@warrax111]

the cause of this disaster is sparing the most money, so it is most rentabile and earns much more money. to buy pressure chamber so big it can hold 10 metres long submarine, would be expensive. They would need also reach over 400 atmospheres of pressure. Would be very expensive project, and it would not reveal anything. As, first 4 rides were good. So they would need to test is like for hours, and hours, before it would eventually pop. It would also mean end of project. As it would reveal, it is not safe. And they would not have money for more sophisticated submarine. And that madmen, was too fanatical, he didn't want to see the truth. He would never agree with such expensive testing, because it could destroy his submarine in testing and his plans.

[@stephernoodle]

They did do 1/3 scale model testing of the Titan and an employee raised concerns about “visible” flaws found during that testing. They moved forward anyway and fired the employee. Just horrendous all around

[@warrax111]

@@stephernoodle You cannot do 1/3 scale model testing. There is hydraulic press test, where they've tested 3d printed submarine, about 8 cm long. Even 300 atmosspheres (3km deep in water) didn't implode it. If you would make it slightly bigger, it would implode. Total pressure on hull is increasing with surface area, so the bigger you get, the more pressure is squeezing you. Larger submarine will actually pop in much lower depth, than smaller submarine.

[@aviationist1018]

@@warrax111i don’t think he was referring to them 3d printing and testing submarines

[@rejuvenatingsoul3498]

​@@warrax111Yeah to make this test true to real life, they should mathematically calculate and use a weaker steel that compensates for the smaller pressure area.

[@madezra64]

I find it impressive how close the crush depth happening here is similar to that of full sized subs. Also impressed by how much such a thin piece of titanium could handle (yes I know the size difference matters here, but still demonstrates the toughness of titanium)

[@Tank50us]

This is how they typically figure out the crush depth of the real thing. A scale model, and a hydro pressure chamber. And even with this data... some really brave souls take the sub out and dive to her maximum rated depth... just to prove she can do it.

[@laughingseal2282]

To be fair, that tiny sub has a much smaller contact surface and thus can resist more.

[@Words-of-encouragement.-.]

@@Tank50us I wouldn't call that bravery, my friend...

[@Tank50us]

@@Words-of-encouragement.-. Well, given that at those depths, if these things pop, you don't even get a chance to know what's happening before you die. This, plus the clausterphobia possibility, is the entire reason why even in the most authoritarian regimes the Submarine forces are entirely volunteer. I'd suggest checking out "Cold Waters" if you want an idea of the kinds of dangers Attack subs face beyond the natural ones, and how easy it is for a submarine and its crew to be snuffed out of existence. My Ol'Man faced this for a few years towards the tail end of the Cold War. Thanks to people who knew what they were doing, he's still here, and by extension, so am I.

[@kaluahmon]

Thanks for the suggestion. Glad that your pops made it out safely 👍

[@johnnyrobinson7055]

This is actually a very good demonstrationt of what happens to the air in your lungs while scuba diving. Even the tiny air bubbles that basically vanish are a great presentation of how important it is to understand the core principles when scuba diving.

[@TheOneAndOnlyOuuo]

You keep your airspaces equalized with the surrounding water pressure when scuba diving. The problem while diving is not implosion, but expansion during ascent if you add air to an airspace like the lungs during the dive.

[@Hfd678vcdg]

this isn't about scuba diving lol

[@EthersMysticalChildTarot8014]

​@@Hfd678vcdgWhy Is Your Brain 🧠 So Limited 😒 Captain Obvious 🤯

[@G1NZOU]

@@Hfd678vcdg But it IS about pressure, and topics are linked by context, everyone knows that.

[@jondo7680]

Actually it makes me understand that I never want to dive into water, with or without a submarine.

[@cpthornman]

I have a feeling this video will get a new wave of popularity soon.

[@danielkoech]

You're right

[@Amaturehourwithmike]

Pretty neat how all the air bubbles that came out of it appeared as a fine dust. It was cool to see them expand when the pressure was released.

[@piiinkDeluxe]

Great catch!! I was wondering where all the air was 😅 but that makes sense

[@Purpleturtlehurtler]

Just like the passengers of the Titan. 💀

[@qwe14205]

Air that was released was actually boiling hot because of low pressure. Unfortunately, those poor people ended up in furnace after initial implosion of the submersible.

[@deaconstjohn4842]

@@qwe14205 still happened way too fast for them to even realize what was about to happen

[@Participant616]

​@@deaconstjohn4842Well they messaged to say that they were surfacing, so I think they realised something was up.

[@Ostsol]

Crazy when you think that the pilot compartment of James Cameron's Deepsea Challenger sub was tested to 11km in a high pressure chamber. Such an immense amount of pressure that they could generate in something much larger than what you fabricated.

[@mikakorhonen5715]

Just add more steel. Its much easier to test than you think.

[@Ostsol]

@@mikakorhonen5715 I was thinking more about the test chamber's capabilities, not the tested object.

[@rz5b1qszkdf44]

7:02 DED WAS TOO MATS

[@Maxillz]

It was actually tested to 20000psi which is like 13700m to give a safety margin over full ocean depth

[@tonyblairs1888]

Yeah that old tech really crazy

[@gimpyRW]

We, my wife and I, are here in Wisconsin USA and we watch every one of your videos. It's much better than network television or the local news/weather reports.

[@cujet]

Absolutely fascinating. Thank you. It is one thing to understand and visualize what happens. It is quite another to see it in real life. Awesome job!

[@Empyreanis]

Holy shit the implosion really is fast, blink, and you might miss it. If 1500m could do that, then there's no doubt that the passengers in Titan didn't feel anything at all as the vessel imploded at 3000m - 3500m.

[@chriz9959]

the pressure is like if the hand of god smashes a mosquito

[@RC_Aviator]

except the implosion most likely occurred at the weakest point which was the Plexiglas window. yes.. it had a Plexiglas window. and Plexiglas when its approaching failure at high pressure will slowly form hairline fractures. So they most likely saw this happening realizing it was about to collapse. So no they most definitely didn't feel anything, but they possibly knew it was about to happen. Thats what you get for signing a waiver stating something wasnt approved by any safety organizations...

[@WhatDennisDoes]

​@@RC_Aviatorwhere did you get that from? they found the entire end cap indicating the hull imploded

[@terminalvelocity4858]

@@WhatDennisDoes I've heard the same thing, what @RC_Aviator is stating is their own speculation and interpretation, unless they can provide proof.

[@craig7350]

@@RC_Aviator Fantasy. Stick to playing with toy airplanes.

[@QuayNemSorr]

The algorithm is really putting in work.

[@YungKalashVEVO]

This video was ahead of its time

[@williamwhitney7395]

This is the kind of show we need for kids now adays. not just telling them how things work, but showing them like they used too.

[@joshuagibson2520]

0:34 ANNI! We all love and miss Anni. And her laughs are always the best.

[@AdrianBawn]

Just to be clear, you can see how quickly this sub compressed at only 1500m of pressure. The Titan was likely around 3000 - 3500m. They wouldnt have felt a thing. And equally there will be basically nothing left of the bodies to recover. The only things that remained are the metal end caps, and anything outside of the pressure vessel.

[@YevvaiYT]

They wouldn't have even known it happened, the sub imploded faster than humans can send signals to the brain.

[@jessicaguarin3897]

True

[@MrTonymontana3039]

Facts

[@bradyb2233]

My assumption was that it imploded when it lost contact with the surface vessel. Which was closer to a mile, i think. But the point remains. They felt nothing and their bodies are completely gone

[@ryanhampson673]

@@bradyb2233 they lost contact at the 1:45 mark and ai think it takes 2 to 2.5 hours to descend . So they probably made it almost 3/4’s the way. The evidence is showing they dropped weights and started back to the surface but it was too late. They had “acoustic” sensors on the hull to listen if the hull was cracking. They knew there was a problem but when the end came they never saw it.

[@SarahMaywalt]

One thing I love about your channel is that you show the failures. I genuinely didn't know if the last sub would pop, and that made it much more satisfying when it did.

[@SinjinTaidjeKhan]

Dude, I mean this as an absolute compliment. Between the Super Mario voice and the sci fi Uncle fester/ Lobot (SW:TESB) look, this was by FAR the BEST video on catastrophic failure/implosion! I actually watched and learned more from this video than I did with the dozens of 20/20, NBC, CNN, FOX news clips. More please! 👏👏👍

[@isaacroth5204]

Man the algorithm is on point

[@no-expert]

Super interesting video and surprisingly violent für such a small submarine. Really shows the incredible (and invisible) pressure at those depths.

[@jetw9522]

That's a really cool experiment!👍 Thank you for making it! And now I understand how a submarine is imploded.

[@Mr_Sim]

I think submarine implosion videos will blow UP theses weeks

[@KNOTTYBUDS]

Lets be honest: We're all looking for a video that can as closely as possible replicate the titan incident.

[@hymnodyhands]

No... some of us were glad to find the science presented in a way that was respectfully removed from the actual incident.

[@fenrirgg]

I'm still waiting for a demonstration with a real submarine imploding in the deep sea with a pig carcass inside.

[@Jason-nt5gr]

That’s why I watched this video.

[@jefaisquepasser]

thank our algorithmic gods for unearthing what we want now

[@akizeta]

I wasn't even looking, it just popped up on my KZbin page.

[@bobgarske9579]

This was a very good idea and quite creative. I've been toying with the thought of buying a 3d metal printer, and you just validated the strength of the finished product. Off to the printer store!

[@moonasha]

you should do this with a carbon fiber miniature, specifically to test whether it weakens with cycles. A pretty simple test a certain someone neglected to do

[@jpdj2715]

Carbon fibre is incredibly strong. But only in "tensile strength". It's like the yarn in the fabric of your clothes. The "sub" you reference consisted of tube made from a composite of carbon fibre with some sort of glue/plastic/filler. The strength of the tube depended on the strength of that filler and its strength of remaining glued to the carbon fibre. Such composites cannot deal with high pressure loads (outside in). In a way, the model sub in this video is a composite of titanium with some special glue. The imploded Titan sub had a titanium dome on either end of the composite tube and these domes have not deformed in the implosion. In 2019, a friend of Stockton went with him on a dive to half the depth of the Titanic. That friend wrote Stockton an e-mail, saying that the cracking noise under load might scare paying customers. Well, that noise was from layers of glue/plastic/filler getting lose from the carbon fibre and each time this happened, the tube became weaker in its ability to resist the pressure forces. As carbon fibre can handle tensile (pulling) loads very well, this is why it can be used in shells of aeroplanes and space vehicles where the pressure inside is higher than outside. Here, the difference between inside and out is never more than the 14.5 PSI (1Bar) that is normal average atmospheric pressure at sea level. At Titanic depth, that pressure difference is almost 400 times more, and outside in, where you cannot benefit from the tensile strength of the carbon fibre. While "carbon fibre" is made from carbon, there are all sorts of molecular or crystalline structures of ~pure carbon: pure diamond is 100% carbon but arranged in an incredibly strong crystal structure, but in your pencil carbon is extremely weak.

[@TheBleghfather]

Love your Armon Amarth shirt!!

[@lear1980]

My favorite part of these pressure chamber videos is watching the air bubbles compress and the re-expand when the pressure is released.

[@MF99K]

I work at a job where I regularly have to work with pressurized liquids and air at small scales, and the size of air bubbles is a really good visual indicator of how much pressure is applied. It’s also a good representation of what happens to people who get the bends. And by small scales, I’m generally working with less than 10ml of liquid at a time so very very small amounts of liquid

[@221b-l3t]

This illustrates really well how the bends or decompression sickness happens with the nitrogen becoming gas in your blood. I understood it in theory but seeing it happen kinda makes it les mysterious.

[@AgentExeider]

You know if the CEO of Oceangate bothered to testing like this, he and four people would still be alive. And this guy is doing it on YTber money, let that sink in for a second.

[@ryanhampson673]

What’s even more insane is they had to repair the hull once before because it was failing…..Universe was trying to give that guy all the hints but he just went full steam ahead into the grave and unfortunately took 4 people with him.

[@frankeinstein719]

Let that SINK in?

[@stargazer7644]

And you know what kind of testing was done, how?

[@ryanhampson673]

@@stargazer7644 From what I understand there is no real set way to non destructively test carbon fiber. You'd have to cut the fiber in half and examine it to see if it was holding up, but that destroys the hull...It's still a pretty new material compared to steel and titanium and no one has used it in this application before. It's literally uncharted territory.

[@Shoprestorationthe]

It’s uncharted territory for a reason, because the material science has long proven that carbon fiber is NOT a suitable material for a vessel under external compression. Gas cylinders and the like are fine because that is internal pressure and that has long proven to be something carbon fiber does do well. But not external pressure. Many people tried to tell Rush that but he didn’t listen.

[@jkfang]

Wow got recommended this and thought he works fast, but this was done 10 months ago!

[@jobbiejew]

Don’t you just love the KZbin algorithms way of recommending videos at very appropriate times…

[@sparkieT88]

I wonder if it would be feasible to have a design contest, for submarines like the bridge crushes a few months ago.

[@nonna_sof5889]

It would be too expensive to do them out of metal, and regular 3D printing can be a bit finicky about leaks. Maybe do them in plastic and then dip them in resin to compensate for any layers that didn't quite bind fully?

[@Linuxpunk81]

There's really nothing to design, it comes down to the thickness and material it will have to be spherical or cylindrical no matter what

[@turokforever007]

@@Linuxpunk81 Different shapes would be good to see what happens but cost to much

[@jakezg3016]

@@nonna_sof5889 look into remelting 3d prints in salt by free spirit 1, fixes a lot of issues with gaps.

[@neolexiousneolexian6079]

@@Linuxpunk81 You'd have to add more performance metrics and design constraints to make it interesting. E.G. Mass limit, maximum internal volume, minimum frontal cross-section, and must incorporate a specific structure (like an analog for weapons payload or power source). I suspect anything complex enough to be interesting to design would also be arbitrary enough to be pointless as a competition.

[@BenKlassen1]

Timely recommendation KZbin algorithm; very timely.

[@kidrobot.]

nah, it's because everyone has been youtubing implosion. popular things get recommended

[@StuffandThings_]

The only thing more intense than the pressures you guys regularly use is the creativity for these videos. Extreme pressure seems to be a concept that rarely documented in easily accessible experiments. I wonder what sorts of weird chemistry and/or physics you could try under such high pressures.

[@joshuaevans4301]

Well this turned out to be surprisingly relevant this year!

[@Fir3Chi3f]

This video is about to get a whole lot of more watches...

[@SpottedHares]

Little did he know ten months ago this would because super relevant.

[@ehsnils]

Revisiting this video due to recent events.

[@The_Mimewar]

That implosion at the end was INSTANTANEOUS! Faster than a blink and it was all over

[@carmudgeon7478]

Wow, you've really stepped up the experiments! Thanks for today's smile!👍

[@torydavis10]

Love the hydrostatic chamber, Great idea! I just watched a few of them and the diver in the plastic ball gave me an idea that could be really fun to see with your setup. All you need to add is two polarizing filters and you can make it into a polariscope! One polarizer in front of the light and the other on the camera, oriented crosswise. Then we can watch the stress as it loads up before failure in an assortment of differently-shaped clear 'balls'. Most random clear plastic things should work well, but different sorts of glass vacuum tube like light bulb, plasma ball, etc. would probably be the least hassle since they are sealed well and you could go slow.

[@chrism4008]

That would be sweet

[@adamb89]

It's really interesting how you can see the bubbles in the water disappear as the pressure approaches 300 bar, then reform instantly when the pressure is released.

[@notyetskeletal4809]

Like they were only dormant in the realm of invisibility.

[@ThomasGilbert-co6oe]

Thanks!

[@rickseiden1]

I missed the competition between you and Anni trying to predict how much pressure each one would take.

[@rc4lifebnsf]

Where is she?

[@bfunphoto]

@@rc4lifebnsf They got divorced sadly. It seems like it was amicable based on their videos about it.

[@parkeranderson7599]

Dark, but I came here after the Titan sub news. Incredible what high pressure can do in the deep sea.

[@adm5618]

This is a great example of how large variation in test results can occur as a result of differences in homogeneity in a material, manufacturing method a or specific points of failure. One leaked, one kept its integrity and the other imploded with a variation of almost x2 in pressure. This is why when designing pressure vessels for depth you need to use predictable materials swathes of non destructive and destructive testing to establish probabilistic failure modes and therefore factors of safety in design

[@melteccraig]

Tragically hilarious that the algorithm is recommending this now.

[@Enricii]

So this is what happened to the Titan submersible, isn't it? Material and structure were much more resistant of course, but the water pressure at 3000 m is much bigger, too...

[@LeonardoMoreira-pz3qu]

Every 10m below the sea level is about 380x the atmospheric pressure.

[@harrynamkoong3361]

@@LeonardoMoreira-pz3qu "Every 10m below the sea level is about 380x the atmospheric pressure."???? Definitely not. At 10m, it would be somewhere around 2x the atmospheric pressure NOT 380x. To get 380x the atmospheric pressure, you would need to get down somewhere around 3800m. The pressure increases by one atmosphere every 10 meters you go down.

[@chireaionut8473]

​@@harrynamkoong3361well... it was like ~400x pressure than sea level or ~200x pressure car tire so it's by 1x every ~9.5m

[@EthanD2452]

Every -10m, you gain 1 bar. So at 100m you are at 11atm or 10bar gauge pressure

[@terminalvelocity4858]

It was MANY more times the pressure for the Titan, think millions of pounds of pressure (6000psi at that depth). They were instantly turned into jelly and cooked from the pressure, and all of it was pushed out into the ocean through any point on the sub that was compromised. There is literally nothing of them to be found, nor will ever be, sadly.

[@MeowUntilForever]

Bro KZbin is pretty savage for suggesting this now.

[@HungPham-ki9wu]

Yes

[@mentallychallenging]

you guys should make a scale model of the titan submersible out of carbon fiber with titanium caps and test it. i wanna see exactly what happened

[@RennieAsh]

You'd need to be an engineer and do scale model design to fully simulate the craft. Otherwise how do you know which part failed first? Was it the bolts? The window? The CF tube?

[@chriz9959]

nothing else happened than what you saw here. that's exactly how it was. In addition, about 18 000 pounds of weight acted on each body, and the air heated up in milliseconds, as hot as the surface of the sun is. just for those who believe you could recover the bodies...

[@iitzfizz]

@@RennieAsh yup. the ntsb report will give you a pretty good idea when they release it they usually go into great detail. I read them all the time, the aviation reports

[@TimberedSplash]

@@RennieAshWhile you make a good point… On the actual real Titan, many don’t think they used “actual” engineers to develop that death trap. Remember, the CEO said it himself… he picked up parts from a thrift shop and slapped it on that thing.

[@RennieAsh]

@@TimberedSplash yes , I suppose if you don't use engineers to design the scale model, then the scaled down test will be as well designed as the sub was

[@EleazarLife]

La mejor explicación de lo que le pasó al titán . Creo que este vídeo si me podría quitar las dudas de lo que pasó y no tanto dibujito animado. Graciass q grande !! Sin duda la mejor explicación de una implosión 👍👍

[@FrietjeOorlog]

Put some of those tiny metal cans of paint for model ships etc. in the chamber. Should look really good.

[@waldo2635]

You're brilliant! Thanks for the video! Doesn't look like any suffering took place, like others have said they probably died before they knew anything happened.

[@terrytheimpaler1204]

Could you replicate the Titan (carbon fiber with titanium caps) in miniature scale and show us what could have happened?

[@zaskadu8320]

lol seriously...

[@leogama3422]

Carbon fiber is hard to manufacture....

[@Moonstone-Redux]

​@@leogama3422Carbon fibre tubes are actually quite easy to buy. You could just buy some and then saw them off using a circular saw then use them as the centre component.

[@kennashey]

@@leogama3422 I know of amateur astronomers that use carbon fiber for telescopes larger than 10" diameter. They use it due to the fact its lightweight. Well, lighter than metal tubes would be at those sizes.

[@simaturna9765]

I was just going to ask the same question

[@SixOhFive]

The algorithm has put this video into the category of titan implosion

[@Kellethorn]

*Hydraulic Press Channel:* "It cost me 1,000 euroes to make this little chamber pressure resistant up to 300 bars." *OceanGate Investors: Heavy Sweating*

[@r.a.contrerasma8578]

Video was uploaded 10 months ago. Excellent prognostication!

[@tonytravert9944]

The suspense was killing me! You held us captive until the last example.

[@Shoprestorationthe]

I believe I can name four people who’s last sentiment was much the same as that

[@dukedalington]

I didn’t realize Flea was into this kinda stuff. Interesting test.

[@lestercombs1871]

That’s messed up!

[@werrrnerrr]

Idea for a next video: at what depth (or pressure) do things that normally float start to sink? For example, that apple from the previous video. This contains a certain amount of air in the pulp, which ensures that the apple has buoyancy. If you let that apple float freely in the tank, it should sink at some point once all the air has been squeezed out of the flesh.

[@jannejohansson3383]

Air don't have to gone, it compressed under pressure so volume goes smaller, but same amount air is there. Sometimes it escape if something like this happens where air is inside hard material. And liquids not compressed by pressure but temperature could change how much per cc like water weight. It's most heavy at -4, so ice is lighter, if it's not from heavywater ice. That ice goes bottom of normal water and then it melts. When that sub popped, if there were tiny guys inside, no much hard feelings. It would happen as fast in real life. Those subs are less or more suicidal devices :p And bigger risk to dead inside vessel is fire, control loss and carbon dioxide.

[@sootikins]

Objects float if the weight of the water they displace is greater than the weight of the object itself. If you squoosh the apple its weight doesn't change, but it gets smaller which means it displaces less water. So at some point it would sink but not because of air being "squeezed out".

[@torydavis10]

@@sootikins Yep, the air gets squeezed *in* until it wasn't floaty enough to float the apple anymore.

[@nosleep7026]

Savage YT Recommendations, keep the algorithm moving no matter what

[@Stealthspy589]

Very very cool! Impressive you managed to get this out 10 months ago!

[@josephgonzalez3491]

10 months later this is very relevant at the moment

[@DrSaxxy]

A scaled-up version with small play-dough people inside would be interesting.

[@Guiboard]

You wouldn't need a lot of minifigs. Like just 5 would be enough for a good example.

[@franciscojaviercarrosario3949]

​@@Guiboard😂😂😂😂😂

[@armand1m]

Rocking that Amon Amarth shirt, simply amazing

[@jeremysumpter8939]

crazy how this video got boosted now after the titan implosion...gotta love youtube

[@manoflego123]

Yessss, I love the pressure chamber videos! I'd love to see more watches get tested, but literally anything getting destroyed is awesome!

[@itsmrlonewolf]

4:25 “It looks surprisingly large still, let’s see what happens when I release the pressure” The old chat up lines are always the best

[@vipersb1]

Dude, Amon Amarth!! Respect! 🤘

[@BentTreeFarmPa]

The one that didn’t implode needs to have a meeting with the hydraulic press!!!!

[@RamArt9091]

KZbin suggesting this after the Titan submarine disaster.

[@alexanderSydneyOz]

Funny how the *internal* pressure vessel he created for this test looks remarkably like the Titan submersible ie cylinder with metal end rings.

[@thebenberman]

I mean that's a pretty standard design across pressurized things. Soda cans, subs, airplanes, etc

[@Kiwi17714]

This is fine as water is not compressible. If there's a leak, the pressure inside the chamber drops immediately. This is why we pressure test pipes and vessels with water and not air.

[@gilliesiut2332]

@@thebenbermansuper deep sea subs are round to withstand the pressure and distribute it evenly. Subs of this design are made for cruising and are typically only rated to dive to 1000m

[@G1NZOU]

@@gilliesiut2332 Yep pretty much, any hard edge is where the stress is going to be focused, the reason why they changed from square windows to round on the first jet airliners, cylinders are better than boxes, but the deepest subs are rounded and also as small as practically possible.

[@gilliesiut2332]

@@G1NZOU it’s funny because the word sub works for both but one is a submarine and the other one is a submersible lol. Although the difference isn’t the shape but the fact a submersible requires a mothership where as submarines are autonomous

[@everettscott4745]

Wow, it makes me think of those poor guys in the Titan submersible, and what they would have experienced on implosion. This video really enables the visualisation of the event.

[@THYLONIX]

"The failure depth was around 1500 meters" Damn, hits hard and close to home now😅

[@enzomolinari9141]

When the hydraulic press you tube channel guy does more submersible hull implosion testing in one video than OceanGate did in its whole existence.

[@raylopez99]

Kudos to the tiny crew in that submarine that survived.

[@muntee33]

This bloke was ahead of the curve.

[@ThomasRonnberg]

Could you do this experiment again but with a replicant of the recent oceangate submarine using carbon fiber.

[@iPelaaja1]

It will look the same. No point in doing that.

[@ThomasRonnberg]

@@iPelaaja1 It's about the views.

[@ThomasRonnberg]

@@iPelaaja1 Carbon fiber is not designed for compression. So it would be interesting to see a carbon fiber tube resisting what it's weak against.

[@heyarno]

I read that repeated stress is the weakness of titanium submarines in reallife. So they avoid going to maximum depth unless they are in real combat. Maybe you can crack the good one by repeating the test a few times.

[@Dukers2300]

Yep, titanium is much more brittle and prone to stress cracking. The Soviets had quite a lot of it, so could make specialized attack submarines using the material. American submarines use a heavier but more ductile and reusable metal - a steel alloy - to make our subs. We can't dive as deep but there aren't as many concerns about cracking.

[@RoboDriller]

Their Titanium sub is unbelievably fast underwater.. Titanium deforms permanently. So when the hull deforms from the pressure, it stays like that.

[@cryogenik_]

I think there’s a reason for why the algorithm showed this video

[@siretrasher1]

finally a good example of anunderwater implosion. Most examples before were vacuum implosions which are not comparable.

[@Tarvoskemwer]

From a scientific point of view, considering the recent events, it would be interesting to create models of various materials and see how they fare against repeated pressure tests at a safe depth and see how many dives it takes before they fail. Additionally we have several unanswered questions: was it the carbonfiber that failed? the viewport? would carbonfiber that isn't past it's due date fare any better? and so on

[@MichaelSamson-l1v]

It must look like some extra saucy spaghetti inside that Oceangate sub.

[@Afterburner]

Strikes me that Stockton Rush should have had this guy test his submersible design...

[@elegathor4251]

1:35 AMON AMARTH! I'm so glad you like them!

[@SKYLIGHTER1138]

i hate to say this but this video is a relief.... i was so worried that those guys onboard the titan sub had suffered and drowned... glad to know it was quick and painless...

[@HedgeyOfficial]

The Admiral said in the interview that they would have died instantly and now we know why, it’s sad knowing they died without any prior warning or being able to do something about but being that quick they wouldn’t have suffered. And to think it could have been prevented if the warnings and concerns weren’t ignored.

[@arts6821]

Ah yes, the KZbin algorithm, right on cue.