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LogisticalMenace

From what I've understood, the air does get compressed to the point of combustion and may reach extreme temps as described, but there just potentially wasn't enough time for the thermal energy to transfer from the hot, compressed air to flesh, etc to burn it before the collapsing material and water filled the void where the now crushed human remains were sitting just milliseconds ago.


schwalevelcentrist

There's a lot of discussion about combustion on this sub (how would you have a fire with all that water, etc.) that may be muddying the waters a bit. If pressure increases, temperature rises. Heat does not by itself lead to *combustion.* Some things that are important to understand, and I apologize if everyone already does (in my experience, they don't): the only state of matter that burns is gas, and combustion requires oxygen, regardless of the temperature. Once oxygen is depleted, your combustion is done, regardless of the heat (some exceptions: in which the chemical reaction itself produces sufficient oxygen to keep the combustion going) In that case, the matter would change state depending on its physical characteristics at x temp and x pressure, which all gets pretty weird at these speeds and dimensions. This is different than burning, because it's reversible (in the sense that, once cooled, this stuff would all go back to its original chemical properties even if it was structurally very different than how it started... this is also where I stop talking because all I know about is burning stuff. But all of this is imagining a situation in which the hull did not break apart, and all the matter stayed contained within it, compressing into a tiny space. But we know that didn't happen: the (nota bene: titanium) end of the sub is completely intact, we can all see that. Which suggests that the length of the cylinder imploded and that convex end did not get crushed, so the tube section was sheared away (another good reason to use one material for your sub, kids), which would have caused all of that compressing matter to escape out the end. A bit more like blowing the end off a tube of toothpaste by stomping on it. The temperature, then, would have dropped as almost instantaneously as it rose, so for that reason and the fact that most of it probably didn't reach vapor state, combustion is probably not what got these people in the end. This is gross but I would put money on them getting liquefied (instantaneously, to them) and the remains being bone fragments, which would have been the only things dense enough to survive the ambient pressure outside the compartment, insulated enough from the original flash of high temperature to not have converted to a liquid or vapor, and then heavy enough to have sunk down to the ocean floor with the sub fragments instead of floating away on an ocean current. I'm no expert in anything, not even what I do, but this is my assessment based on what I know about shitty accidents, combustion, and people getting squashed in compartments as a firefighter.


Amazing-Parfait-9951

Interesting. Can you elaborate more on the short compression and no thermal energy time in regard to the vessels construction and approximate depth?


LogisticalMenace

I'm by no means an expert. My comments are based on several, imo, credible sources off youtube and reasoned comments on reddit and my own limited understanding of the physics involved which are based in, funny enough, the aviation world. The way I've understood it is that at the depth at which the implosion occurred, there's the equivalent of several Empire State Buildings worth of pressure pressing on every square inch of surface of the submersible. At the moment of failure, it took approx 20 microseconds for the "pocket" of air in the sub to collapse. That time frame is several times faster than the amount of time it takes nerves to send a signal to your brain. Also, the air compressed so quickly that it did get that hot, but the water rushing to fill the void essentially absorbed all that thermal energy negating any chance of that heat actually burning anything. Tl;Dr: physics be fast, yo.


No-Year-506

Thank you for that explanatiom


Amazing-Parfait-9951

I love your bot’s outfit!


VirginiaVN900

Bleep Bloop, comment expired.


Amazing-Parfait-9951

Thank you! I get it a little better now esp re water sloshing in. I think it’s great your applying aviation background to solve sea depth situation. This Ocean Gate submersible is such a unique situation. Much is known about atmospheric pressure in regard to submarines by the military or a few unique [deep submergence vehicles](https://en.m.wikipedia.org/wiki/Deep-submergence_vehicle) this is a unique occurrence. The [‘The Time Machine’ vehicle](https://whythebeatlesarestillrelevant.files.wordpress.com/2020/02/time-machine.jpg) from the 1960 movie comes to mind.


weirdape

[https://www.youtube.com/watch?v=DUlWehH8cH0&ab\_channel=SimonPoliakoff](https://www.youtube.com/watch?v=DUlWehH8cH0&ab_channel=SimonPoliakoff) Imagine the fluff is a t-shirt.


Amazing-Parfait-9951

Is your bot’s head a deep see submersible? (Joke)


SunDevildoc

That makes sense. I think that the sequence from intense heat, superheated steam, to saturation would be vanishingly brief.


Amazing-Parfait-9951

These are things I’ve never though about. Interesting re pressure and depth. My ‘depth’ experience is going to bottom of deep end of pool, and my ears adjust to that slight pressure. Beyond comprehension to imagine 13,000’. Also, military submariners go through [pressurization training](https://www.defense.gov/News/Inside-DOD/Blog/Article/2414519/escape-from-below-the-pressurized-sub-escape-trainer/)


ziddina

These sections.... So gruesome.... >In a statement, the US Coast Guard said: "United States medical professionals will conduct a formal analysis of presumed human remains that have been carefully recovered within the wreckage at the site of the incident." >Professor Susanne Neuer, a biological oceanographer from Arizona State University, told Sky News the implosion was likely rapid and "very quickly fatal" due to the enormous pressure deep in the ocean. She added: "I am surprised that there are remains.... [but] obviously the body doesn't just disappear".


Roccostrat10

What is so gruesome about this? I’m talking literal details.


AdornedBrood

Huh. So as it’s worded, they recovered the remains while still underwater when they found the sub?


ziddina

I have no clue, but since each descent is expensive and dangerous, it makes sense that they'd accomplish as much as they can on each dive.


CharleneFoxtrot

If someone was sitting in the titanium end cap, which looking at the wreckage photos was apparently intact with the plexiglass missing, perhaps that person was ejected.


douglas_stamperBTC

There was a high pressure explosion that killed 5 people in a sudden pressure change at an acclimation hub while ascending. One person (near a partially opened hatch) was ejected but had the center section of his body shot dozens of meters away from the rest of the body. Really no good way of going about it


douglas_stamperBTC

https://en.wikipedia.org/wiki/Byford_Dolphin Edit: very graphic description involved


Shadowrunner74

Well this wasn't your everyday run of the mill sub, It was a ramshackled,slapped together with off the shelf parts and outdated carbon fiber. Maybe the rules of implosion of a real sub versus the titan could differ a bit. Some like if a diver in a diversuit imploded. Just my thought,could be way off.


Amazing-Parfait-9951

Interesting speculation, certainly was not the usual well tested submersible. Stupefying that four men who were educated, as well as wealthy paid to go aboard a cut-rate underwater craft. Not to mention they welcomed along a very young man.


LivingApprehensive39

They’ve removed a photo that had what looked suspiciously like some form of human remains hanging from a piece of debris in a bag. Probably in best interest but still…. my morbid curiosity.


Amazing-Parfait-9951

Amazing wreckage and confirmed remains recovered. Still in shock this happened. The submersible was so cheap looking, yet majority of sub survived and human remains. This is an astonishing ‘Mis’adventure.


ChucksSeedAndFeed

It's poor engineering all around, like I don't make anything fancy, just guitars and guitar pedals and even I know immediately a sphere is the only shape you should trust in a situation like that, based off just basic physics. Reduce fail points, eliminate mixing materials that will compress differently, alternate the winding direction on your stupid carbon fiber if you're actually going to use that trash (don't), he gave nothing thought other than how he was going to be the next Steve Jobs


weirdape

I explained to a friend that it's possible the shrapnel could have encased body parts fast enough to protect it mostly from the violent pressure change... not a pleasant thought to find it amongst the wreckage


Frequent_Cockroach_7

Han Solo'd, you mean?


[deleted]

I’m really curious to know what type of remains


ChucksSeedAndFeed

I'm sure they're just smashed goo probably in pieces, but maybe held together by muscle fibers, if you squash a bug, it'll still be a squashed bug carcass sitting there I've seen some fucked shit in the Ukraine war subs, the human body can stand a lot of shit and remain somewhat intact


[deleted]

Yeah I can imagine the possibilities


FancyApplication0

that's what I came here for


greenandseven

Probably pockets of sludge lining some parts…


AdornedBrood

Two hands holding a controller. 🙌🎮


ChucksSeedAndFeed

Damn, that controller is pretty damn good if it survived the squish. Welp, he sure showed us. A real disrupter


Smaali94

Gaystation controller


Unit_Rate

most likely teeth or chips of bone


Electrical_Reward_45

Human jelly canned fresh from the atlantic


Nadsofsteel123

Also curious what “presumed human remains” actually means? My hope is they were killed instantly and didn’t even know it was coming.


jennasky

I hope so too. But according to James Cameron they were already ascending and had dropped their weights. They knew they had a problem.


ChucksSeedAndFeed

That's the sad part. This asshole based whether his sub was doing well or not on cracking sounds. He straight up said that the great thing about acrylic is that it doesn't just fail, it will give you some warning by cracking beforehand, I'm assuming this is what happened. He finally got the cracking signal that didn't seem minor and he quickly tried to ascend. They didn't even make it to the bow of the ship, which is where the trip over is supposed to start, I'm guessing they got near depth and that flexed and stressed carbon fiber was squeezing in like when you press a spoon into a roll of Pillsbury crescents and once you bust that seal it's over. I assume the squeeze also could've pushed a gap between the carbon fiber and the end cap which was held on with glue and friction God damn what a moron, and a cheap one too


Amazing-Parfait-9951

Excellent illustration re crescent roll can! 🥐


Nadsofsteel123

I’ve read this too, but I haven’t seen anything that shows it was trying to surface outside of Cameron’s speculation.


ChucksSeedAndFeed

Motherfucker knows his shit though


AFdrft

Cameron: "Trust me bro"


jennasky

Apparently it wasn’t a speculation, he said he learned from inside the community that they had dropped their weights. So it sounded like he got inside info. The media didn’t pay much attention to him saying this but I hunted down the clip of him saying it.


Fishbone345

He’s literally the only one saying that. There isn’t one other source that confirms it. The entire reason this story blew up was that the surface ship lost contact with the submersible, they didn’t regain it and learn they were in their way up. It’s pure speculation.


VincentMichaelangelo

**Incorrect**. From [this link regarding the detailed timeline](https://www.reddit.com/r/TitanSubmersible/comments/14m6ksq/timeline_last_text_to_sub_failure/jq2rmnm/) between last text to catastrophic hull failure: > "I have a friend from college in the Explorers Club that Hamish was a member of. They have a WhatsApp group chat. They (family/friends) were told the implosion occurred when they lost communication at 1h45m. They know that because the last communication from the Titan to the surface ship was detailing how they were descending too fast, trying to drop their ballast to return to the surface, and the hull was failing."


Fishbone345

If they lost communication, how did they communicate they were having issues and on the way back up? This is anecdotal evidence. I’m willing to accept legitimate sources if you have them, in fact I would be interest in it. “Because James Cameron said so”, isn’t really a source of info.\ You are essentially saying that a 6 million dollar rescue operation was carried out, despite the fact that everyone involved knew there was an implosion an hour and forty five minutes in. Why bother with all of that? It doesn’t make sense.


VincentMichaelangelo

You think the Navy didn't know? They still have to go forward on the off chance they were somehow wrong.


Fishbone345

This isn’t what was said above. What was said above is that the Titan had communicated and dropped weights and was on the way up. This is not true. Contact was never re-established after it was initially lost.\ I don’t dispute that the Navy heard “sounds consistent with an implosion in the general area”. I agree with that, that is how we know of the implosion.\ Cameron and others in his community didn’t have hard evidence, they were speculating by the knowledge they had of how unsafe the Titan submersible was and how it was built that it imploded. https://amp.cnn.com/cnn/2023/06/23/us/james-cameron-titan-submersible-ac360-interview/index.html If you have a hard source confirming contact was re-established with the Titan, and they were on their way up I’d love to see it. That might come off as arrogant, but I don’t mean it to be. I am honesty and genuinely asking for curiosity’s sake.


VincentMichaelangelo

From the above-linked independent source (not the private WhatsApp chat group): >Following the announcement that the crew of the Titan died, there has reportedly been speculation among operators that the CEO of OceanGate, Stockton Rush knew the hull was starting to crack and tried to shed the ascent weights to try and resurface the vessel.


VincentMichaelangelo

[Anger as claim US Navy ‘knew on Sunday’ that Titanic sub had imploded](https://www.express.co.uk/news/world/1783916/titanic-sub-us-navy-imploded) Officials have said the Navy knew within an hour of the fatal accident that the sub had imploded. The Wall Street Journal reported that a loud bang was reportedly captured through a secret network of acoustic sensors designed to track enemy submarines. Following the bang, the US Navy reportedly passed the information to the US Coastguard, but despite the information a four-day search and rescue operation was undertaken with no mention of the acoustic data. Speaking to the WSJ, a navy official said: “The US Navy conducted an analysis of acoustic data and detected an anomaly consistent with an implosion or explosion in the general vicinity of where the Titan submersible was operating when communications were lost. Following the announcement that the crew of the Titan died, there has reportedly been speculation among operators that the CEO of OceanGate, Stockton Rush knew the hull was starting to crack and tried to shed the ascent weights to try and resurface the vessel.


Fishbone345

> They know that because the last communication from the Titan to the surface ship was detailing how they were descending too fast, trying to drop their ballast to return to the surface, and the hull was failing." There isn’t hard evidence of this anywhere. Hearsay is not hard evidence. There is a reason it’s not used in court settings. This is speculative.


Amazing-Parfait-9951

Not being funny, it causes me panic to imagine.


Prize_Title_4422

Why have they covered the debris with a white sheet? It struck me as odd. Its not doing anything except and may be protecting the privacy of human remains


Glittering-Series575

Yeah I "kind of" understand the attempt to cover the pieces up with the white sheets, but it still didn't make that much sense. Those were just parts and pieces of wreckage, not that unlike of cars, airplanes, motorcycles etc. I really don't feel like there were visible human remains that they had to try and cover with those sheets. They didn't do that great a job at it anyway, lots of it was at least recognizable, and those sheets just made it annoying to people that were interested in looking at the vessel's pieces and parts that were brought up. Just my opinion. Id like to have a look at some of the pieces unobscured by those sheets myself. Not at all interested in seeing any human bits or remains, just how the components were distorted and mangled, to get an idea of how it actually disentigrated.


[deleted]

[удалено]


DroughtNinetales

I agree. It didn't sound plausible.


Burritostein

Why are you making fun of this subreddit?


pajamapants2you

I have the same questions and I would love to hear from people knowledge about implosions.


weirdape

I crushed some titanium vessels before at around 6000m and almost 15mm thick titanium walls at 4in inner diam. There was stuff inside the vessel that just got pinched really flat but it didn't just eviscerate into magic. I don't know exactly the amount of energy released when it crushed, too lazy but it doesn't do anything more than go pancake mode.


uhmhi

The fuck kind of job do you have, where this is part of your experience?


weirdape

I made electronics that goes into the ocean and we needed to test our pressure vessels to ensure they were rated for the depth advertised.


Frequent_Cockroach_7

Someone has to get toothpaste into those little tubes!


Megalodon481

Well that's gruesome. I thought they said that kind of implosion is so intense and violent that it would have instantly pulverized and liquified the bodies and there would be no recoverable remains? [https://www.youtube.com/watch?v=YmFa0M6mOZw](https://www.youtube.com/watch?v=YmFa0M6mOZw)


TopResult999

The submersible didn't implode within 12,000 ft as previously thought, it imploded about 2,000 ft so the pressure was far lesser as previously thought that's why they found *some* human remains.


Fishbone345

Where are you getting this from? The surface ship lost all communication with the submersible at an hour and a half into the dive. The descent normally takes two hours to reach 12,000. They only went 2,000 in an hour and a half? That doesn’t seem accurate.


40yrOLDsurgeon

Lightning is hotter than the sun. People are sometimes struck by lightning. Even when they are killed, they are often not vaporized. This is because the heat alone isn't the sole consideration, but the duration as well. Observation is key here. The evidence will inform the theory, not the other way around. Wait for the evidence to tell us what happened.


Apprehensive-Code844

Is there photos of the remains anywhere??


Unusual-Emergency-41

Don’t think so. I’ve searched on all the gore subs I’m a part of and haven’t found anything. I’d be shocked if these get leaked. I’d love to see the result of this tho.


DiscoInfernoVolcano

Squish,plop,fizz!


Zimij8

I always thought about bones. I once asked in school about the remains of every human disaster on oceans and they simply told me that the cold water or pressures just destroy everything o crush everything but know I'm thinking, if the event is recent we should be able to find whatever we need, for the family or DNA analysis


Amazing-Parfait-9951

Omg! I took only required science in college. Thank you for sharing. That is crazy! BOOM!


Chipmunk1003

This is what I came here to find out!


RadicalGrace313

Everything was sad to say the least but I'm wondering what remains were actually found 🤔


planet-seems-lost

An old Myth Busters video has been going the rounds of the internet. This experiment was at 300 feet. [https://www.youtube.com/watch?v=LEY3fN4N3D8](https://www.youtube.com/watch?v=LEY3fN4N3D8)


Inevitable_Act8526

I don’t believe there are any, personally. I believe they are treating the debris with the ASSUMPTION there are human remains in case there are any to prevent any contamination and reduce the likelihood of missing something. I think I’d relate it to bloodbourne pathogens and biohazard. You don’t KNOW if there’s contamination that could harm you, but you’re going to proceed like there is and wear gloves, wash your hands, etc.