It's time again for: Horrors of the deep

[Mad Scientist !!Q11PG81nz2n No.3313457]

Let's get these classics out of the way:

The Byford Dolphin incident:
http://en.wikipedia.org/wiki/Byford_Dolphin#Diving_bell_accident

Mythbusters: Compressed diver video:
http://www.youtube.com/watch?v=LEY3fN4N3D8

Crab vs. Pipe:
http://www.youtube.com/watch?v=9A2nbR-TZac

[Mad Scientist !!Q11PG81nz2n No.3313468]

Here's something most might not already be familiar with.

When the nereus deep sea robotic probe visited the Challenger Deep, it sampled the strange white ooze reported by the Trieste crew to cover the bottom of the trench. It turned out to be liquified organic remains, mostly bone.

You see, the pressure at that depth does not permit solid calcium to exist. Bones literally dissolve.

Pic related, Nereus sampling bone goo.

[Mad Scientist !!Q11PG81nz2n No.3313491]

Deep sea saturation divers regularly expose themselves to pressures in excess of thirty atmospheres, hanging weightless in a cold, pitch black abyss emptier and lonelier than outer space.

http://www.youtube.com/watch?v=T-N7zdhP3fg

Effects on the body resemble rapid aging. Saturation divers in their thirties typically exhibit bone density levels of 80 year olds. The money is good enough that many endure this over the short term in order to pay for school or other ambitions.

[Anonymous No.3313498]

>>Diver D4 was shot out through the small jammed hatch door opening, and was torn to pieces. Subsequent investigation by forensic pathologists determined D4, being exposed to the highest pressure gradient, violently exploded due to the rapid and massive expansion of internal gases. All of his thoracic and abdominal organs, and even his thoracic spine were ejected, as were all of his limbs. Simultaneously, his remains were expelled through the narrow trunk opening left by the jammed chamber door, less than 60 centimetres (24 in) in diameter. Fragments of his body were found scattered about the rig. One part was even found lying on the rig’s derrick, 10 metres (30 ft) directly above the chambers. His death was most likely instantaneous and painless.

>>Medical investigations were carried out on the four divers’ remains. The most conspicuous finding of the autopsy was large amounts of fat in large arteries and veins and in the cardiac chambers, as well as intravascular fat in organs, especially the liver.[5] This fat was unlikely to be embolic, but must have “dropped out” of the blood in situ.[5] It is suggested the boiling of the blood denatured the lipoprotein complexes, rendering the lipids insoluble.[5]

>>The rigor mortis was unusually strong.[5] The hypostases (accumulations of blood in internal organs) were light red, and in two cases, there were numerous hemorrhages in the livers. All the organs showed large amounts of gas in the blood vessels, and scattered hemorrhages were found in soft tissues. One of the divers had a large sub-conjunctival bulla (a blister in the tissue of the eye).

[Colonel Coffee Mug !phJ7yIcs.Q No.3313523]

>Diver D4 was shot out through the small jammed hatch door opening, and was torn to pieces. Subsequent investigation by forensic pathologists determined D4, being exposed to the highest pressure gradient, violently exploded due to the rapid and massive expansion of internal gases. All of his thoracic and abdominal organs, and even his thoracic spine were ejected, as were all of his limbs. Simultaneously, his remains were expelled through the narrow trunk opening left by the jammed chamber door, less than 60 centimetres (24 in) in diameter. Fragments of his body were found scattered about the rig. One part was even found lying on the rig’s derrick, 10 metres (30 ft) directly above the chambers. His death was most likely instantaneous and painless.

[Anonymous No.3313525]

>>All of his thoracic and abdominal organs, and even his thoracic spine were ejected

[Anonymous No.3313526]

Deep sea thread? Deep sea thread.

[Colonel Coffee Mug !phJ7yIcs.Q No.3313528]

http://www.youtube.com/watch?v=Rh6aQ51b_ZQ

0:24

[Anonymous No.3313532]

>>3313528

AHahahahaha holy fuck

Sharks have no bones though, right? So it might have lived.

[Mad Scientist !!Q11PG81nz2n No.3313535]

[Colonel Coffee Mug !phJ7yIcs.Q No.3313536]

>>3313532

>yfw water pressure blasting through its eyes and mouth

Then again, the water in the tube had the same velocity as the shark, so it might have been carried along all the way up. Christ.

[Mad Scientist !!Q11PG81nz2n No.3313541]

[Colonel Coffee Mug !phJ7yIcs.Q No.3313544]

[Anonymous No.3313546]

>>3313536

>>so it might have been carried along all the way up. Christ.

Surfacing at that rate would cause it to explosively decompress. They probably just got a bloody bubbling mess out the other end.

[Mad Scientist !!Q11PG81nz2n No.3313547]

[Colonel Coffee Mug !phJ7yIcs.Q No.3313550]

>yfw sea posthumans are crazier than space posthumans

[Anonymous No.3313549]

>>3313491
>Deep sea saturation divers regularly expose themselves to pressures in excess of thirty atmospheres, hanging weightless in a cold, pitch black abyss emptier and lonelier than outer space.
except you speak to your tenders topside or your coworkers in the dive bell the entire time you're down there. it's not very lonely.

>Effects on the body resemble rapid aging. Saturation divers in their thirties typically exhibit bone density levels of 80 year olds
yes, but Sat divers generally only develop bone necrosis if they are brought to depth or back up too rapidly. other than that it might make you look as though you were 40 when you were only in your early 30's.

>The money is good enough that many endure this over the short term in order to pay for school or other ambitions.
ambitions; yes, school; no. if you're sat diving you have already invested a massive amount of money into school just to learn how to dive, how to tend deep sea divers, and how to assemble/disassemble heliox air supplies. this is not construction or stripping, you do not get into this to pay for school, you do this because you fucking want to do it until you retire.

[Anonymous No.3313554]

>>3313457
>a crab getting pushed through a 1/16th in slot

Nopenopenopenopenopenope

[Mad Scientist !!Q11PG81nz2n No.3313561]

>>3313549

>>except you speak to your tenders topside or your coworkers in the dive bell the entire time you're down there. it's not very lonely.

Depends on whether or not it's hardhat diving, although I don't know of any major firms which don't use hardhats anymore. In any case this is much the same as how an astronaut has a radio link to the ISS.

[Anonymous No.3313571]

>>3313561
there have never been any companies which do saturation diving on any other rig than hard hat. the only options you're left with without hard hat is hookah or scuba, both of which are far too dangerous to do sat dives with.

[Mad Scientist !!Q11PG81nz2n No.3313573]

Even knowing all of this, would anyone really hesitate to journey down there? You only live once, and just imagine what you might discover.

[Anonymous No.3313580]

>>3313573
tis why I do what I do.

[Mad Scientist !!Q11PG81nz2n No.3313582]

>>3313571

>>there have never been any companies which do saturation diving on any other rig than hard hat. the only options you're left with without hard hat is hookah or scuba, both of which are far too dangerous to do sat dives with.

I have photos in my collection of saturation divers wearing scuba gear. Typically assisting or filming a hardhat diver. Pic related.

The real advantage of hardhat diving is that it permits you to speak over the comms tether. There's also a marginal increase in personal comfort, but I don't see how one is significantly safer in a hardhat versus scuba. Not as if heavy falling objects are a common concern at several hundred feet down.

[Mad Scientist !!Q11PG81nz2n No.3313589]

[Mad Scientist !!Q11PG81nz2n No.3313592]

[Mad Scientist !!Q11PG81nz2n No.3313596]

[Mad Scientist !!Q11PG81nz2n No.3313611]

[Anonymous No.3313621]

>>3313582
>I have photos in my collection of saturation divers wearing scuba gear. Typically assisting or filming a hardhat diver. Pic related.
you see how the water around them is pretty blue? those divers are at <200ft. that is not a picture of a saturation dive.

>There's also a marginal increase in personal comfort, but I don't see how one is significantly safer in a hardhat versus scuba. Not as if heavy falling objects are a common concern at several hundred feet down.
hard hat rigs provide a continuous supply of air to the diver via the umbilical tether. scuba on the other hand has a finite supply of air, and at several hundred feet down(upon leaving the dive bell and descending) that air supply would be cut down to minutes at the most. in addition to the advantage of not running out of air at several hundred feet, hard hats provide the comfort of not having to worry about several thousand pounds of water forcing its way inside their body as they leave the bell. the advantages to hardhat diving in saturation are numerous, and the dangers that come with scuba in extremely high pressure environments are too numerous to even consider it for saturation dives.

[Anonymous No.3313639]

MURKA!

[Anonymous No.3313648]

>Diver D4 was shot out through the small jammed hatch door opening, and was torn to pieces. Subsequent investigation by forensic pathologists determined D4, being exposed to the highest pressure gradient, violently exploded due to the rapid and massive expansion of internal gases. All of his thoracic and abdominal organs, and even his thoracic spine were ejected, as were all of his limbs. Simultaneously, his remains were expelled through the narrow trunk opening left by the jammed chamber door, less than 60 centimetres (24 in) in diameter. Fragments of his body were found scattered about the rig. One part was even found lying on the rig’s derrick, 10 metres (30 ft) directly above the chambers. His death was most likely instantaneous and painless.

And you want us to colonize this shit.

[Anonymous No.3313680]

>>3313648
oh no silly, that was at a median pressure between surface and dive site, the ocean floor would have a significantly higher pressure level than the dive bell itself.

[Mad Scientist !!Q11PG81nz2n No.3313689]

>>3313621

>>you see how the water around them is pretty blue? those divers are at <200ft. that is not a picture of a saturation dive.

I'll bet you $500 that it is. (I happen to know the story behind the picture, fair warning, you'll lose the bet.)

And surely you know that not all saturation dives go below the photic zone? I thought you said you do this for a living.

[Mad Scientist !!Q11PG81nz2n No.3313711]

Most oil rig welding jobs, for instance, take place well within the daylight zone. I'd assume a professional saturation diver would know this.

[Mad Scientist !!Q11PG81nz2n No.3313749]

Keep in mind you're talkin' to a guy whose ocean photos folder has a saturation diving subfolder, which has subfolders named "photic", "twilight" and "midnight".

Although really I should reorganize all the photos under those three folders come to think of it.

[Anonymous No.3313760]

>>3313528
holleeee shit

more videos like this and the crab one?

[Anonymous No.3313779]

>>3313689
>And surely you know that not all saturation dives go below the photic zone? I thought you said you do this for a living.
I am aware of this. however, saturation setups are expensive and dangerous, so performing saturation dives at depths in the 30-180 ft range are almost always cheaper and more effectively performed by cycling divers or simply having in water decompression stops. there are a rare few occasions where saturation is used under 200 feet because of this.

>I'll bet you $500 that it is. (I happen to know the story behind the picture, fair warning, you'll lose the bet.)
what IS the story behind that picture? from the water color picture the divers look to be about 60-90 ft, and using sat gear at that depth just seems idiotic.

[Anonymous No.3313804]

>>3313711
>Most oil rig welding jobs, for instance, take place well within the daylight zone. I'd assume a professional saturation diver would know this.
I do. I also know that most oil rig jobs are also run on normal air and are NOT saturation dives, just like the one in your picture.

[Mad Scientist !!Q11PG81nz2n No.3313815]

>>3313779

>>what IS the story behind that picture? from the water color picture the divers look to be about 60-90 ft, and using sat gear at that depth just seems idiotic.

They're diving from the Aquarius undersea research station. It's the duration of their stay, rather than their depth, which requires saturation. Pic related. :3

[Anonymous No.3313838]

>>3313815
that explains a lot. I was under the impression that they were Navy Salvage because of how clear and shallow it is.

[Anonymous No.3313862]

>>3313468
then what do you make of the observation of a flounder in challenger deep? Also, I'd be surprised to find solid calcium pretty much anywhere on earth except a laboratory....

[Anonymous No.3313865]

WTF is this?

[Anonymous No.3313877]

>>3313865
a moray eel with a destroyed face.

[Anonymous No.3313893]

>>3313865

Looks like an eel.

[Anonymous No.3313911]

>>3313865

Somewhere on earth there is a mental patient in a coma with the unique ability to manifest his nightmares in the real world, but only in very high pressure regions. As a result the horrors his sleeping mind conjures up all appear exclusively in the deep ocean.

[Anonymous No.3313956]

>>3313911
when did this place become /x/?

[Anonymous No.3313995]

Saturation diving sounds fucking creepy.

[Anonymous No.3313999]

>>3313956
when it stopped being /new/?

[Mad Scientist !!Q11PG81nz2n No.3314018]

>>3313995

>>Saturation diving sounds fucking creepy.

In the best way possible. Something within us longs to conquer these cold, distant, dark places. And there is a strange beauty to the abyss, and a peace similar to that found in space.