Looks like The Titanic killed a few more people

[Paratus]

I've been told you basically incinerate in the pressure collapse is instant.

I’m not sure about that. The temperature of the compressed air would definitely increase quickly but it’s also surrounded by cold water. With a large delta T between the air and the water as the water compresses the air a lot of energy is going to transfer into the water reducing the temperature rise of the air.

Interesting thermodynamics problem.

Edit: after looking around the internet to satisfy my curiosity it looks like temperatures would spike very high very fast in the collapsing bubble only to be cooled again as the water slams into the heated area almost instantaneously.

I guess it would be like a diesel engine with water for the piston.

 

[kage69]

I hope people remember what happens when arrogant as hell billionaires try to do dangerous things on the cheap. I still can't believe rational adults saw a tube with no seats or fire prevention in mind, run with a damn game controller, and thought, yeah let's ride that into the abyss.


The sea does not care how big your wallet or balls are. I hope that anti-Rickover guy there becomes synonymous with cavalier failure that gets people killed. May his arrogant disregard for real world consequences do some good and act as a warning for future adventurers.

 

[UNCjigga]

Kind of weird to think about this, but a catastrophic implosion is really the second best outcome here (best obviously being a successful rescue of stranded submersible.)

 

[UNCjigga]

I hope people remember what happens when arrogant as hell millionaires try to do dangerous things on the cheap.

… and yet, 4700 people just bought a Tesla today, many with Full Self Driving enabled…

 

[Captante]

this somehow reminds me of an explanation i saw in a video about the asteroid that hit the yucatan 66m years ago and wiped away the dinosaurs; specifically how in movies you would see the slow, gigantic explosion in the distance, while in reality is more like "lovely summer morning, blink eyes - pulverized".
the thermal energy from the impact travels at the speed of light, a vast portion of life on earth was incinerated before they notice anything.

From my understanding the speed of the thermal shockwave of an asteroid is estimated to be about 50,000 mph. (pretty fracking fast!)

Light however is a tad faster ... it travels at approx 286,000 miles PER SECOND.

 

[pmv]

I hope people remember what happens when arrogant as hell millionaires try to do dangerous things on the cheap. I still can't believe rational adults saw a tube with no seats or fire prevention in mind, run with a damn game controller, and thought, yeah let's ride that into the abyss.


The sea does not care how big your wallet or balls are. I hope that anti-Rickover guy there becomes synonymous with cavalier failure that gets people killed. May his arrogant disregard for real world consequences do some good and act as a warning for future adventurers.

Maybe there are lessons that could be learned from it. But not just for 'adventurers' - people who think they can run vast social-media businesses on the cheap, or who think vital public services can be endlessly cut with limitless 'efficiency savings' (*cough* Cameron and Osborne *cough*) without causing bad outcomes should maybe take note?

 

[Captante]

Reminder: Pride cometh before what again?

 

[hal2kilo]

I hope people remember what happens when arrogant as hell millionaires try to do dangerous things on the cheap. I still can't believe rational adults saw a tube with no seats or fire prevention in mind, run with a damn game controller, and thought, yeah let's ride that into the abyss.


The sea does not care how big your wallet or balls are. I hope that anti-Rickover guy there becomes synonymous with cavalier failure that gets people killed. May his arrogant disregard for real world consequences do some good and act as a warning for future adventurers.

People are still going to climb Mt. Everest with all the known dangers. Some people don't seem to feel alive unless they stay on the edge of cheating death. Heck, I've enjoyed some white knuckled psychonautic travels.

 

[Commodus]

I think this whole thing happened because the CEO was a tight-ass with money and wanted to reduce costs as much as possible.

That's the thing, it's such a mixed bag. The CEO and his company were very shoddy, but I wouldn't wish such a horrible fate on him, let alone passengers. Even if they're spoiled wealthy types, they shouldn't suffer because of someone else's folly.

 

[Pohemi]

Yeah, my experience with carbon fiber is all in aviation, but it's actually pretty flexible. One problem with it vs unhardened steel or aluminum, though, is it doesn't yield when it's over loaded, it starts to crack. This is probably where it gets it's bad rap on bikes, accidents that would've bent an aluminum bike breaks fibers and then later it fails under lower load than it should have.

Crack, and shear. This is why many older CF bicycle frames were lugged/press fit (glued) together at junctures as opposed to pinned/screwed. Of course now many or most of them are one piece monocoque design so the tube junctures no longer matter. Now they just fit alloy sleeves into the headtube, bottom bracket, and dropouts.

If the frame fails, it's often still the carbon shearing from stresses such as a crash.

Pretty sure drilling an air hole through carbon fibre is not that hard. Same with plexiglass.

Different types of CF of course, but the types I know about...drilling or cutting is very specifically limited/prohibited. It weakens it structurally.
The only carbon I ever cut were bicycle fork steerer tubes for fitting, and we needed to use a special diamond saw to make the clean cut and not damage the top of the steerer, which could lead to catastrophic failures down the road (no pun intended).

They are being honest, there is low chances of recovering remains.

I would consider it no chance. I'm honestly surprised they're even finding debris.

 

[sdifox]

People are still going to climb Mt. Everest with all the known dangers. Some people don't seem to feel alive unless they stay on the edge of cheating death. Heck, I've enjoyed some white knuckled psychonautic travels.

Except the ones dying on Everest are people who have no business being there. Or experienced climbers being bottlenecked by idiots.

 

[Captante]

Except the ones dying on Everest are people who have no business being there. Or experienced climbers being bottlenecked by idiots

Actually.... sounds a LOT like this incident now that you mention it.... JUST like it in fact!

To my mind the issue is NOT endangering yourself in an experimental deep-sea sub ... it's selling it to rich tourists and taking them along for the ride in your unproven POS with NO real safety systems that's the problem.

Anyone responsible for this who is still around deserves to be sued into oblivion and possibly face criminal charges.

 

[sdifox]

Crack, and shear. This is why many older CF bicycle frames were lugged/press fit (glued) together at junctures as opposed to pinned/screwed. Of course now many or most of them are one piece monocoque design so the tube junctures no longer matter. Now they just fit alloy sleeves into the headtube, bottom bracket, and dropouts.

If the frame fails, it's often still the carbon shearing from stresses such as a crash.



Different types of CF of course, but the types I know about...drilling or cutting is very specifically limited/prohibited. It weakens it structurally.
The only carbon I ever cut were bicycle fork steerer tubes for fitting, and we needed to use a special diamond saw to make the clean cut and not damage the top of the steerer, which could lead to catastrophic failures down the road (no pun intended).



I would consider it no chance. I'm honestly surprised they're even finding debris.

Who cares about weakening a structure when the goal is to get fresh air into the cabin? Remember this was to address the scenario that the vessel is at sea level but they have to wait for crane ship to get the passngers out.

 

[igor_kavinski]

It's a miracle he survived so long, with a broken brain like his.

 

[sdifox]

They're all paying to peer out of that tiny porthole on the front? Seems like you couldn't even see through that as well as you could with an ROV covered in cameras. This kinda boils down to the same kind of argument as to whether manned space flight is worth it. When we can do almost all the same science with probes, and at none of the risk.

Apart from it looking like something a DIYer cobbled together in their back yard, the fact that there's no locator beacon or tether and they bolt you in from the outside gets a big ol' nope from me.

I don't know what the Brit billionaire was thinking when he has seen space and Mariana Trench. He has seen what competence looks like. And he signed on to this one.

 

[Captante]

View attachment 82101

It's a miracle he survived so long, with a broken brain like his.

I wouldn't let anyone who said that drive me to the market in a slow car!

I admit that I take chances every day ... I used to ride big sport-bikes way too fast all the time among many other things. Tell you what though my bike had the BEST Metzler tires money could buy at the time, upgraded brakes and was very well maintained. I NEVER cheaped out on anything.

ALSO (silly me apparently! ) I always wore leather and a full-face helmet!

 

[sdifox]

… and yet, 4700 people just bought a Tesla today, many with Full Self Driving enabled…

That is what I call a self resolving problem.

 

[Motostu]

View attachment 82101

It's a miracle he survived so long, with a broken brain like his.

Strange (to me at least) to see an engineer think this way.

 

[Captante]

That is what I call a self resolving problem.

Idk ... I try to steer clear of all newer Teslas. (they blend in so well now it's not that easy!)

If they were only a risk to the drivers of the vehicles concerned it wouldn't bother me much.

 

[K1052]

Here is what Cameron had to say, video in second post. Seems to think the carbon fiber composite delaminated under repeated stress.

https://twitter.com/x/status/1671969084798554112

 

[Vic]

We are now entering the lawsuit phase of this disaster. And with 2 dead billionaires, and the cause of the disaster almost certainly due to design/engineering failures, I don't believe that liability waiver is going to hold up in court.

 

[sdifox]

We are now entering the lawsuit phase of this disaster. And with 2 dead billionaires, and the disaster almost certainly due to design/engineering failures, I don't believe that liability waiver is going to hold up in court.

Can't get blood from stone

 

[Vic]

Can't get blood from stone

True that. But never underestimate the ingenuity of a lawyer looking for a paycheck.

 

[kage69]

I’m not sure about that. The temperature of the compressed air would definitely increase quickly but it’s also surrounded by cold water. With a large delta T between the air and the water as the water compresses the air a lot of energy is going to transfer into the water reducing the temperature rise of the air.

Interesting thermodynamics problem.

Edit: after looking around the internet to satisfy my curiosity it looks like temperatures would spike very high very fast in the collapsing bubble only to be cooled again as the water slams into the heated area almost instantaneously.

I guess it would be like a diesel engine with water for the piston.

Pretty sure that is indeed what happens at extreme depths, at least for a tiny fraction of a second. That massive change in pressure causes the air to ignite, so point of order you get flash incinerated slightly before being pulverized into goo. I think you can calculate the energy released if you know the exact depth and air volume of the sub; more air, bigger the release of energy packed into a tiny sliver of time. You're dead before the water hits what's left of you, though not by much. I would take that over wasting away over days, slowly suffocating.

 

[skyking]

Someon

Can't get blood from stone

Stone, puree, whatever