Right, probably only a handful of boats and ROVs capable of this search worldwide. The boats moving at a max of what 20-30 mph and maybe having to travel 1000, 2000, 3000 miles to get there (and they are probably already in the middle of doing something).

I feel slightly bad that I want to know more about the condition of any human remains. It’s not intended to disrespect the victims, but you gotta admit, it is interesting to wonder what in fact happens to a human body in this situation. Even the Navy is surely interested: the CG initially said they didn’t expect to find recognizable remains, now they apparently have.

I have to imagine that this isn't the first time that there have been human remains at extreme depth, and the military probably knows what happens.

I don't want to see pics or anything, but I'm curious about the effects as well.

I'd forgotten about him as a director, but his legacy of high quality movies is mind boggling. Pretty good for a guy that was once a truck driver.

At least one of the posts I contributed to this thread mentioned an academic at Duke whom appears to have knowledge of the effects of implosions on humans. She is has also written about submersibles, including a CSA vessel incident that resulted in the loss of lives way back when.

Other posts provided links to information that suggests that at least one completed Titan (with hull monitoring) was tested at great ocean depths in an unmanned configuration at least on once, and at least one Titan hull was perhaps removed from service and examined after a dive.

Perhaps more will be learned.

The lack of process rigor is odd to me. As a former pilot and operational flight test lead, aviation has specific processes to follow. Two links below that we tailored our testing to.

https://www.juran.com/blog/guide-to-failure-mode-and-effect-analysis-fmea/

https://quality-one.com/fmeca/

The environment the Titan entered is so much more dangerous than aviation...even a Rotor-head learns how to auto-rotate.

Quals and certifications for passenger aircraft are onerous because they should be.

Perhaps of interest:

https://stanleysubmarines.com/

Stanley took at least one dive in Titan and heard cracking sounds.

https://www.youtube.com/watch?v=0mSq6ibKKXQ


Stanley:


"When Karl Stanley was aboard the Titan for an underseas excursion off the coast of the Bahamas in April 2019, he felt there was something wrong with the vessel when loud noises were heard.

The day after his trip, Stanley sent an email to Stockton Rush, the CEO of the vessel's operator OceanGate Expeditions, sounding the alarm on suspected defects.

"What we heard, in my opinion ... sounded like a flaw/defect in one area being acted on by the tremendous pressures and being crushed/damaged," Stanley wrote in the email, a copy of which has been obtained by CNN.

"From the intensity of the sounds, the fact that they never totally stopped at depth, and the fact that there were sounds at about 300 feet that indicated a relaxing of stored energy /would indicate that there is an area of the hull that is breaking down/ getting spongy," Stanley continued."

""He canceled that year's dives and took that carbon fiber and cut it up, found the defects and made a new one at the cost, I believe, of well over $1 million," Stanley said."

Stanley's self-designed sub is used for tourism, perhaps amongst other things.

They haven't given any info as far remains but a literal square inch of tissue can be considered "remains"..

.

Perhaps of interest:

https://www.youtube.com/watch?v=CW3-f32VF0g

2:26 a passenger on the first Titan Titanic dive provides some additional perspective.

Stockton Rush 2021 US patent #us patent 11119071 B1

Monitoring the integrity of composite structures.

Easy to download.

http://forums.pelicanparts.com/uploa...1688125446.jpg
http://forums.pelicanparts.com/uploa...1688125446.jpg

They might have been better off with this.
http://forums.pelicanparts.com/uploa...1688125659.jpg

Sure - but can you tell me on what day and hour the request was put in to get the Horizon Arctic with the ROV on site?

I believe it was already in port at St John's at the time.

I think they lost some time - that's all.

I have seen some photos of a standard Styrofoam coffee cup before and after being put under the pressure of the deep ocean. It just gets so compressed it is the size of a thimble. I certainty don't know just what happens to humans exposed to those pressures, but I suspect the flesh is just shredded, and the bones crushed. It would not be a pleasant site.

As I remember, the USAF said they needed only as much as a foot and ankle to say they have enough of a body to bury.

styrofoam is foam, which means that it's mostly air (hence the insulating properties). It's not a solid object or fluid filled. The human body has very little air in it, it's mostly fluid.

In the experiment video there's a bubble of water in view of the camera. The bubble shrank a bunch before the light bulbs, bottles, etc... were crushed. Those items were crushed because they were full of air. Air is compressible, and fluid is generally not compressible.

Is it just me that has stopped watching videos about this after the conclusion?
Sooo many YouTubers throwing in their 10 cents worth.
I get all the info I need from you guys. lol

I didn't watch many videos to begin with, but unless someone comes up with something concrete, I probably won't watch any more.

A human has around 5-6 liters volume of air in lungs and other respiratory tract, skull (sinus, nose, mouth, ears, throat), intestines (where farts come from). That air volume will be (almost) instantly compressed to around 0.3% of its original volume, via water suddenly pressing in at around 5000 psi, as the body collapses down unevenly - instantly collapsing in air-containing areas but not in adjacent non-air-containing areas. The water pressure causing that collapse is uniform, but the body's resistance to pressure is not. I would guess that fat has least resistance, muscle a bit more, muscle with bones under it (ribcage?) a bit more, skull has more resistance, etc. Not sure of pre-existing orifices in skin will make any difference. Anyway, if pressure is uniform but resistance is not as body is instantly but unevenly collapsed, seems a recipe for a shredding.

This makes me wonder if humans could be adapted to extreme deep sea pressures by 1) flooding lungs and sinuses with water, 2) somehow suppressing the gag/choke reflex, 3) artificially oxygenating blood (basically an ECMO machine).

It’s not just you. Although the technical/engineering discussion here is quite interesting, general interest is waning. And, you’ll notice that news outlets have mostly moved on as well - except for perhaps the imminent legal troubles. Most discussion I see now is basically taking a “what did you expect” tone.

The ears are a major problem. Just dive to the bottom of the standard back yard pool at 12 feet and the pressure on your ears feels like a lot. It is a challenge for some scuba divers as well.

It is one reason they have to descend slowly. I made the mistake of riding along in our airplane on a trip up to northern Missouri when I had a sinus infection. We went up to just 9,000 feet but I thought my nose was likely to pop off and spatter on the G-1000 instrument panel. The pilot dropped altitude, and we just rode in hot air to make it a lot better on my sinus but sweatier.

Many years ago a fluid was developed that contained oxygen and could be "breathed". It's one of the things used in the film Abyss, I believe.

My understanding is that the main problem in a person actually breathing the fluid is that the fluid is denser, heavier, and more viscous than a gas (air). We are not used to or designed/adapted to breathing that fluid, and trying to do that would not go well long term. This is something that I remember from various videos and things that I've read over the years. I could have some details off.

Per one YouTube video.

Sinus/ear cavities implode - that the last person would feel if it took two seconds instead of 30 milliseconds

Blood/guts are forced into any porosity in the bones.

"Guts"instantly fill lung cavity.

Air is cooked to surface of the sun heat in that 30 milliseconds but it's a tiny area. I don't think that would puree remains as it would be hot for such a short period of time.

I kind of think there would be a mist and a few remaining scraps.

When I first heard they passed instantly because of the implosion I was relieved.

I think Myth Busters did a show on a deep sea diver and they recreated where the pressure changed rapidly and the diver's body was forced a good ways into his spherical helmet.

I certainly wouldn't volunteer as an experiment subject. I'm sure it wouldn't be fun or pretty, but I suspect the physical, visible impact would be minimal. The human body is surprisingly resilient. My guess is that the ribs will resist compaction, so the stomach area will compress pushing some of the internal organs up towards the lungs. The throat/neck will probably also compact.

People get run over by vehicles directly across their torsos and come away with bruising and possibly some broken bones. 2.5 miles down exerts more pressure differently, than getting run over by a vehicle, of course.

“Mr. Solo had a pressing engagement.”

- Auric Goldfinger

I didn't watch them from the beginning.

Frankly, I think they should leave it all on the ocean floor. Once it was determined there was no one to rescue, it should have been shut down.

Right, ears definitely make sense. I know that swimming in a deep pool has always been very uncomfortable to me, and my right ear bothered me for a week after I went skydiving. Sinuses, mouth, throat would also be a bit of a mess.
I wouldn't think the bones have any air pockets. I believe they are full of fluid, and therefore no porosity to fill.
Absolutely. It would be like an extreme version of sucking in your stomach.
https://i.ytimg.com/vi/14veOCV46z8/hqdefault.jpg
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I wonder how that flash heat would work with the ingress of water as well.
Yes, that video was linked farther up this thread. But the fact that the body was sealed into the suit and most of the suit was soft with the helmet being minimally compressible makes that particular example an apples to oranges comparison.

Kind of dated, in that this was shot before the sub was found. Poignant, in kind of a strange way, though.

<iframe width="430" height="764" src="https://www.youtube.com/embed/7OsCQT8gIWI" title="BILLIONAIRE SUBMARINE PARTY" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

Jeff, to me being the nagging step-wife, speaking of submarines, what about that R/C hydro of yours? nag nag, you haven't even floated it in a bather tub of water to check C/G balance.........Will it run in 2023?

I remember watching a program and one of the hosts was talking to a person about liquid oxygen and held held a cat immersed in the fluid. Pulling the cat out after some time, the cat was fine.

Maybe I’m misremembering?

I think the one that I saw (and I think this was in the 70s) was a mouse. But they may have done it with other critters too.

https://en.wikipedia.org/wiki/Liquid_breathing

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Gotta be like getting waterboarded.

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Breathing liquid could be a way to dive deep without needing the submersible to withstand deep ocean pressures. The whole craft and occupants are filled with liquid.

That's cruel. They should have used students.

[QUOTE=masraum;12034934I wouldn't think the bones have any air pockets. I believe they are full of fluid, and therefore no porosity to fill.[/QUOTE]

You would think any blood would have found it's way in before but that's only what the guy on the video said. On the other hand, 5,000 psi can do things we don't normally comprehend as Newtonian physics.

The Mythbusters clip was not the same as this subject implosion but it sure stuck with me. That was probably several hundred pounds vs 5,000 but I'll have to double check.

I think every cell in the body that contained air or oxygen would have collapsed. The lungs and sinuses… they would have filled with water.

I don’t know about you guys but I have a hard time keeping my mouth shut sometimes and for sure it won’t hold back 5000 psi.

While working for an off shore geophysical research company got to check out a crushed data canister from a streamer that had been recovered after breaking free from the towing ship. The streamer was made up of alternating hydrophones and canisters that would process the sonic data and send it back to the ship. At the end of the streamer was a buoy. The buoy keep the far end of the streamer afloat but the end closest to the ship sank straight down before it could be recovered. I am not sure how long the part of the steamer was that broke off. The canisters were a titanium cylinder about two feet long and five inches in diameter with a connector at each end to connect to the steamer cable. They were filled with a sandwich of PC boards and shock absorbing foam. The ends were welded on titanium plates with the streamer connectors embedded in them inside of a threaded ring that attached to the streamer cable.

The canisters that went the deepest looked like crushed beer cans in the middle. After sawing through them to get a across section view, the foam, PC boards and all the components on them were just squashed into a solid mass between the folds of the crushed canister. Was very impressive. I wish I had a photo to show but only can find this of a typical streamer setup.
http://forums.pelicanparts.com/uploa...1688243904.gif

True