Debris Field Confirmed as Titan • Hacker News Board

Re: Debris Field Confirmed as Titan

#81

Post by 2-718-281-828 » Thu, Jun 22, 2023, 7:50 PM UTC

Buttons840 wrote: post #41

joegahona wrote: post #17

Earlier quoted context omitted.

Just thinking about that outcome yesterday caused my blood pressure to skyrocket. Dark, cold, cramped, fetid, hungry, thirsty, knowing oxygen is running out.

In that scenario, as long as they could keep CO2 levels down, running out of oxygen isn't so bad (ignoring the other troubles). The human body can't detect a lack of oxygen, you just get tired and light headed and pass out.

i understand what you are basing your statement on (a cleaner version would be asphyxiation by breathing an inert gas) but you are very wrong. as a matter of fact people with an impaired amygdala who can't experience fear will panic when forced to breathe co2. also your breathing will get very shallow and cause co2 to accumulate triggering those very receptors you argue will stay silent.

https://www.nature.com/articles/nature.2013.12350

Re: Debris Field Confirmed as Titan

#82

Post by [deleted] » Thu, Jun 22, 2023, 7:50 PM UTC

vkou wrote: post #31

sesuximo wrote: post #6

Earlier quoted context omitted.

Do airplanes count?

As Futurama famously said, airplanes are rated for a pressure differential somewhere between zero and 0.7 atmospheres. With the positive pressure being inside the plane. This submersible needed to survive a differential of ~350 atmospheres. With the positive pressure being outside the craft.

[deleted]

Re: Debris Field Confirmed as Titan

#83

Post by accrual » Thu, Jun 22, 2023, 7:52 PM UTC

Maxion wrote: post #58

bhtru wrote: post #52

Earlier quoted context omitted.

What would be worse a catastrophic collapse deep down in the sea or a sudden depressurization high above in the sky around the Armstrong limit?

The latter clearly as you’d definitely have a longer time of being conscious.

One would survive at the Armstrong limit for much longer indeed:

> Exposure to pressure below this limit results in a rapid loss of consciousness, followed by a series of changes to cardiovascular and neurological functions, and eventually death, unless pressure is restored within 60–90 seconds. [0]

[0] http://www.geoffreylandis.com/vacuum.html

Re: Debris Field Confirmed as Titan

#84

Post by chrisbolt » Thu, Jun 22, 2023, 7:53 PM UTC

iso1631 wrote: post #67

Was the company insured for the massive cost of the rescue attempt? Do they have enough assets to pay for it?

The company is bankrupt many times over, surely.

Re: Debris Field Confirmed as Titan

#85

Post by 2-718-281-828 » Thu, Jun 22, 2023, 7:54 PM UTC

ChuckNorris89 wrote: post #42

giarc wrote: post #38

Earlier quoted context omitted.

Somewhere a redditor did the math and I believe it would have taken 24ms for the glass to break and the water to rush in. Instant death if it was indeed the glass.

Just how instant is that death? Do you die from quickly drowning in the water or is the water pressure enough to also crush your skull quick enough to make sure you die without having the chance to feel anything? Guillotined people can still be alive and feel about 30 second safter their head has been removed from their body.

> Do you die from quickly drowning in the water

logically not in this case. at that point where the water level is sufficient to make someone drown the remaining air would be compressed to several hundred atmospheres pressure.

Re: Debris Field Confirmed as Titan

#86

Post by legitster » Thu, Jun 22, 2023, 7:55 PM UTC

joegahona wrote: post #17

legitster wrote: post #10

In a weird way, this is almost relieving. The speculation that they were suffocated and entombed in their own filth somewhere on the ocean as they died slowly seemed so, so much worse.

Just thinking about that outcome yesterday caused my blood pressure to skyrocket. Dark, cold, cramped, fetid, hungry, thirsty, knowing oxygen is running out.

These kind of long, agonizing, pointless deaths are all too common when dealing with the ocean.

There was a horrifying case after Pearl Harbor where bodies were found in the airpocket of the USS West Virginia. They had flashlights with batteries and fresh water and had marked off 16 days on a calendar.

Legend has it that sailors could hear banging for weeks knowing they could not cut through the thick battleship armor in time and just drowned out the noise.

Re: Debris Field Confirmed as Titan

#87

Post by 2-718-281-828 » Thu, Jun 22, 2023, 7:55 PM UTC

Merad wrote: post #57

ChuckNorris89 wrote: post #42

Earlier quoted context omitted.

Just how instant is that death? Do you die from quickly drowning in the water or is the water pressure enough to also crush your skull quick enough to make sure you die without having the chance to feel anything? Guillotined people can still be alive and feel about 30 second safter their head has been removed from their body.

The pressure at that depth is something like 5000 psi. You're literally dead before your brain has time to comprehend what's happening.

not if the leak leaked for an extended period without ripping open ... then pressure would build up very slowly.

Re: Debris Field Confirmed as Titan

#88

Post by shadowgovt » Thu, Jun 22, 2023, 7:55 PM UTC

vkou wrote: post #26

powderpig wrote: post #7

Earlier quoted context omitted.

There are a number of reasons why it might have failed, fatigue, deviation from process/protocol but pressure vessels are well understood and not the problem here.

Are carbon-fiber pressure vessels well understood? I get that there's a lot of armchair quarterbacking from internet material experts here, but this does seem to be an outlier with this particular submarine.

They're well-understood to not be what you want to build a high-pressure submarine out of.

They can take the pressure. But they're incredibly expensive to check for defects, and the result of a defect is "sub-second catastrophic failure" instead of any warning of imminent structural degradation.

Re: Debris Field Confirmed as Titan

#89

Post by [deleted] » Thu, Jun 22, 2023, 7:56 PM UTC

mattbrewsbytes wrote: post #9

The outcome everyone knew would happen. I don't understand the desire to go to that depth to see a sunken ship when I presume there is camera footage of it available. You can't get out and do anything, your view is probably pretty crappy given the thickness of any see through material. I see the allure with Everest and the view for your 60 seconds at the top must be impressive and it is a physical feat. But a sunken…

[deleted]

Re: Debris Field Confirmed as Titan

#90

Post by legitster » Thu, Jun 22, 2023, 7:56 PM UTC

Buttons840 wrote: post #41

joegahona wrote: post #17

Earlier quoted context omitted.

Just thinking about that outcome yesterday caused my blood pressure to skyrocket. Dark, cold, cramped, fetid, hungry, thirsty, knowing oxygen is running out.

In that scenario, as long as they could keep CO2 levels down, running out of oxygen isn't so bad (ignoring the other troubles). The human body can't detect a lack of oxygen, you just get tired and light headed and pass out.

> The human body can't detect a lack of oxygen

Unless you know you are trapped and running out of oxygen.