Looks like The Titanic killed a few more people

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Indus

Lifer
May 11, 2002
16,601
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Why would it blow outward? You mean like squeezing a mango so its seed shoots out? Wouldn't that require more pressure on one side than the other?

Hmmm.. well unless I am mistaken on the pictures..the bolted on end side containing the viewport wasn't bolted in to the titanium hull ring.

That made me theorize exactly your squeezing the mango theory and both the bolts and the viewport exploding outward as a result of the implosion squeeze.
 

Indus

Lifer
May 11, 2002
16,601
11,410
136
So it should be possible to find the viewport intact?

This is the picture that made me think either it failed or it exploded..

1687995267078.png

Doesn't look intact from there does it?

So either:

1. The viewport failed and the implosion made the carbon fiber composite explode outward

or

2. The carbon fiber composite failed and the implosion made the viewport explode outward.
 

Heartbreaker

Diamond Member
Apr 3, 2006
5,347
7,063
136
This is the picture that made me think either it failed or it exploded..

View attachment 82382

Doesn't look intact from there does it?

So either:

1. The viewport failed and the implosion made the carbon fiber composite explode outward

or

2. The carbon fiber composite failed and the implosion made the viewport explode outward.

#2 is much more likely.
 

pmv

Lifer
May 30, 2008
15,142
10,043
136
Hmmm.. well unless I am mistaken on the pictures..the bolted on end side containing the viewport wasn't bolted in to the titanium hull ring.

That made me theorize exactly your squeezing the mango theory and both the bolts and the viewport exploding outward as a result of the implosion squeeze.

The physics of it are beyond me, I'm not an engineer. The viewport exploding outwards in the course of a failure of the hull sounds unlikely to me, given the pressure is going to be the same over the entire external surface. Unless (and I don't know enough to even know if I know enough to work this out) the fact that the carbon-fibre bit was cylindrical and the ends were hemispheres would affect how that pressure was experienced in a failure?
 

skyking

Lifer
Nov 21, 2001
22,877
6,044
146
If the carbon fiber tube imploded, there were several tons of carbon fiber shrapnel in motion, and it would not be neat and uniform.
Note that the bolts and the base ring of that nose piece are also missing. It disassembled to the maximum extent.
 
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sportage

Lifer
Feb 1, 2008
11,492
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Bits of fish food recovered.

Officials Recover 'Presumed Human Remains' From Titan Sub Wreckage

Pieces of evidence from the Titan's implosion last week were returned to shore by crews on Wednesday, the U.S. Coast Guard said.



A question for you web ghouls. Satellites cover virtually every inch of Earth these days and many pump picture down in near real time. Is there a picture of the ships around the staging area?
That evidence will now be transported to a US port for further analysis and testing, the Coast Guard said in a news release. Part of the evidence that will be analyzed are the presumed human remains, the release said.

I wouldn't want to be on the receiving end. Now they'll know the toll an implosion takes on the human body.
 

gorobei

Diamond Member
Jan 7, 2007
4,113
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Imploding material doesn't stop moving when it gets to the center. An implosion isn't that different from an explosion of similar force after a brief period.
if it is anything like torpedo detonations, there are multiple shockwaves as the expansion bubble forms, collapses, and re-forms a bubble as the energy comes back to the center due to the surrounding pressure. it repeats this like a yoyo until the energy is dissipated.
i would think the same thing would happen with an implosion from a failing pressure vessel.
 
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Heartbreaker

Diamond Member
Apr 3, 2006
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The physics of it are beyond me, I'm not an engineer. The viewport exploding outwards in the course of a failure of the hull sounds unlikely to me, given the pressure is going to be the same over the entire external surface. Unless (and I don't know enough to even know if I know enough to work this out) the fact that the carbon-fibre bit was cylindrical and the ends were hemispheres would affect how that pressure was experienced in a failure?

Somewhere someone calculated how many KG of TNT the implosion would be equivalent to. It was a fair bit. Some were figuring it would essentially ignite the air. It's not going to simply rush into the middle and stop. There is going to be a Massive shock wave radiating out, which could easily pop that viewport out.
 
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Pens1566

Lifer
Oct 11, 2005
14,056
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Somewhere someone calculated how many KG of TNT the implosion would be equivalent to. It was a fair bit. Some were figuring it would essentially ignite the air. It's not going to simply rush into the middle and stop. There is going to be a Massive shock wave radiating out, which could easily pop that viewport out.

Yeah, it was 1000s of degrees of heat IIRC.
 
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sze5003

Lifer
Aug 18, 2012
14,320
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Wondering what "human remains" they may have found? I would expect at n implosion of that force with all the heat dissapating, they basically got cooked to goo.
 

[DHT]Osiris

Lifer
Dec 15, 2015
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Wondering what "human remains" they may have found? I would expect at n implosion of that force with all the heat dissapating, they basically got cooked to goo.
Decent chance some feet survived inside boots. Probably very little else.
 

uclaLabrat

Diamond Member
Aug 2, 2007
5,632
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They didn't wear shoes onboard.
Reading bob ballards book in the late 8ps as a kid about the expedition to find the wreck in the first place was grim. As part of the epilogue he mentioned they never expected to find bodies and they never did, as 70 years of scavengers and decomposition took care of any remains. What they did find were pairs of matching shoes on the sea floor, marking where the bodies had settled. Dozens of them. Creepy.
 

Homerboy

Lifer
Mar 1, 2000
30,890
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Somewhere someone calculated how many KG of TNT the implosion would be equivalent to. It was a fair bit. Some were figuring it would essentially ignite the air. It's not going to simply rush into the middle and stop. There is going to be a Massive shock wave radiating out, which could easily pop that viewport out.

Seems those theories are false
 

skyking

Lifer
Nov 21, 2001
22,877
6,044
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The math that somebody else posted had a theoretical heat rise of ~2500F
That's not even a 1/4, but people do love to exaggerate.
 
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Heartbreaker

Diamond Member
Apr 3, 2006
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Seems those theories are false

I think those heating comments were based on a steel sub which might implode by crushing the hull, trapping air behind the steel and overheating it.

Original heating comment, from form Nuclear Sub officer:

When the hull collapses, the air auto-ignites and an explosion follows the initial rapid implosion, Mr Corley says.
Human bodies incinerate and are turned to ash and dust instantly.

But I think the CF probably just disintegrates and it would be water instantly dissipating the heat, so I would not expect bodies to be cremated.


The TNT comment were from various physics nerds calculating energy release from implosion, like this one:

Say that the volume of the Titan was about ten cubic meters, pressure at the ocean bottom 400 atmospheres or ##4\times 10^7## Pascal, the explosive TNT releases about 4000 Joules per gram, we’re talking roughly the equivalent of detonating one hundred kilograms of TNT.

Regardless of the actual numbers. There is Enormous potential energy released in a tiny fraction of a second when a deep see hull implodes, there will be a big shock wave rebounding out.
 
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[DHT]Osiris

Lifer
Dec 15, 2015
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I think those heating comments were based on a steel sub which might implode by crushing the hull, trapping air behind the steel and overheating it.

Original heating comment, from form Nuclear Sub officer:



But I think the CF probably just disintegrates and it would be water instantly dissipating the heat, so I would not expect bodies to be cremated.


The TNT comment were from various physics nerds calculating energy release from implosion, like this one:



Regardless of the actual numbers. There is Enormous potential energy released in a tiny fraction of a second when a deep see hull implodes, there will be a big shock wave rebounding out.
The air is what compresses and ignites, regardless of the material the 'bubble' is made out of. Once the breach happens the material is irrelevant, water compresses air, makes a shitload of heat, and incinerates+squashes whatever is compressible within the bubble. Very densely packed air then rises to the surface.
 

sportage

Lifer
Feb 1, 2008
11,492
3,163
136
Stockton Rush may have dismissed safety issues knowing that if something did happen it would happen very fast. No pain, and no lawsuits. At least none from those actually onboard. No one wanting a refund. That 250,000 is very tempting, and if something goes terribly wrong who's to know? The media, the families, but thats about it. Everyone else will felt nothing. Nothing at all. I doubt any of them had any warning beforehand, not even a seconds notice. And thus stockton rush would think WHAT THE HELL, I SAY GO FOR IT.