movies Deeper (diving the Pearse Resergence)

[wiggins]

I watched this the other day on Netflix and went down the cave diving rabbit hole. Cave diving is something that I would never, ever do as the idea of being trapped underground and drowning seems the most claustaphobic death I could ever imagine.

But these guys make it look amazing.

The two divers, Harry and Craig, were the two Australians who were instrumental in rescuing that Thai soccer team from the flooded cave a few years back. Harry, an anaesthatist, used ketamine to get the kids unconcious and then tied them up and a team of divers swam them out a number of km. It had never been done before. Just amazing.

The dives these guys make on 'Deeper' are down to about 900' using mixed gasses and then, when helium became to dense due to pressure to breath, switched to hydrogen as it was lighter and stopped helium tremours.

Here's a pic of one of the habitats they use to demcompress for hours and hours and hours: it's just a bag filled with air from SCUBA bottles with lights inside, extra tanks, food, drinks etc.


Here's Harry's site with loads of videos. He's quite funny with his narration. Very self effacing.

 

[wiggins]

Inside the habitat.

 

[wiggins]

Every cave death in Aus has Harry and Craig as body retrievers.

Diver's body recovered after cave diving incident in SA

The body of a man who died while cave diving in South Australia's south-east on Sunday has now been recovered, police say.

www.abc.net.au

The book on the Thai cave rescue is worth a read:

 

[Flatus Tube]

Thanks for this. I’m glad other nutters do this and film it, as there’s no fucking way I’m doing it.

The habitat is awesome. I’d be freaky sitting on the swing seat knowing your legs are dangling into the deep cave below.

 

[wiggins]

Thanks for this. I’m glad other nutters do this and film it, as there’s no fucking way I’m doing it.

The habitat is awesome. I’d be freaky sitting on the swing seat knowing your legs are dangling into the deep cave below.

I found a few things really interesting in this doco and the site with all the short clips.

Firstly the effects pressure had on various gasses. Helium was thought to be the gold standard with commercial divers as a nitrogen substitute and all we heard about mixed gasses was from the oil rig guys who speak with the Micky Mouse voice pitch due to vocal chord vibration frequency. Harry describes the hydrogen voices as 'even sillier'. But these cave guys really explored whole new depths and found all sorts of new issues. Psychosis from helium under pressure for example. And the effort required to breath deeply compressed helium.

I had no idea that hydrogen would ever be used. I've dug around some more and found some stuff from a WW2 Swedish naval officer who was experimenting with hydrogen in a hard hat rig. He was diving to 1000' back in '43 but died from being hauled up too fast which caused the bends. Link included below:

Hydrogen Diving: The Good, The Bad, the Ugly | John Clarke Online

In the preceding blog post, I reminded the reader that the Earth’s supply of helium is limited. It is not a renewable resource. Being a diving professional, I am not concerned about the consequence of a helium shortage on party balloons. But I am thinking about the potential consequences on...

johnclarkeonline.com

Secondly, and related to the Thai rescue, the idea that an anaesthatist was also an expert cave diver and suddenly found his skills in demand is just amazing. Well, to me anyway. His dad and wife were always on at him to stop his hobby but then came the hour... His mate Craig is also a vet who has had a lot of experience with ketamine.

I have seen a lot of your posts on gut flora. I came across an article about the use of methanogenes for bio chem decompression. Link below: some hilarious fart based humour in this one...

The Case for Biochemical Decompression

How much do you fart during decompression? How about your teammates? It turns out that those may be critical questions if you’re decompressing from a hydrogen dive, or more specifically hydreliox, a mixture of oxygen, helium, and hydrogen suitable for ultra-deep dives (Wet Mules, are you...

indepthmag.com

As I said before, I entered a rabbit hole with this subject. I'd followed cave diving a bit over the years, especially having done some dry caving when I was at uni. Australia has a lot of limestone and thus a lot of caves. I've done a few squeezes through narrow passages but nothing out rageous. I loved the sense of going from a monochromatic world for hours and then entering back into the full colour version at the end of the trip. Wild.

Rebreathers seem to be a science on the ascendency. Back to the Future – from a 2000 Discover Issue | John Clarke Online

 

[wiggins]

Cave diving fatal accident analysis:

An Analysis of Cave Diving Accidents

In 1979, legendary cave explorer Sheck Exley undertook a systematic analysis of the causes of cave diving fatalities. The results published in

indepthmag.com

Ironically Sheck Exley died in a cave diving accident...at 1000'

 

[wiggins]

This woman died a few years ago in Tank cave in Aus. Harry and Craig rescued the body. They all knew each other. So these guys have rescued a lot of their mates... This was the same cave the guy died in last year which was another mate they retrieved...

She took her spare tank off to get through a squeeze and ran out of air before she could get back to it. She was found dead within a few feet of her tank.

At the time I got the heebie jeebies just thinking about dying like that.

Agnes Milowka - Wikipedia

en.wikipedia.org

 

[wiggins]

The Agnes Milowka body retrieval. How fucking ghaustly to die within metres of your spare tank. And how arrogant to take it off just to push further. She broke one of the cardinal rules of cave diving. From 'Against All odds':

"The caves of Piccaninnie Ponds, twenty kilometres west of Mount Gambier. When Harry came up to the surface, he was told that someone in the group was overdue coming out of nearby Tank Cave. Tank Cave is only around fifteen metres deep, but it’s a complex maze with eight kilometres of interwoven tunnels and tight restrictions. He had the sinking feeling: It’s going to be Agnes. She had asked some of the guys about good places to prospect for new leads, and they’d told her about a spot they’d been scratching away at for years, very slowly moving a few rocks at a time so they could get a little further in, proceeding carefully, like they were trained to. As well as we could piece together later, Agnes had bowled into a hole leading to a new passage about 600 metres from the entrance and kept going, squeezing through some extremely narrow openings. She was small, and famous for pushing through tight, restricted country. At one point she had taken off one of her cylinders to push herself further in. That’s a risky manoeuvre. You’ve dropped your redundant gas supply. If anything goes wrong with your other tank, you’re in serious trouble. Going further into the cave, she’d turned around and got lost in the silt. She never made it out. It was a group effort to find Agnes’s body. One team of divers followed the line she had laid, then Harry and another diver pushed through some very tight country until they came upon her discarded cylinder. Not far away, Harry spotted Agnes’s body. It was perpendicular to the line, suggesting she’d been trying to go out through a tiny crack that didn’t lead anywhere. It looked like Agnes had still been fighting right to the end. Her gear was all undone. She was obviously trying to take stuff off and fit through this little hole, in zero visibility as she had stirred up a lot of silt during her entry, which you would expect in these tight conditions. When the gas ran out, she had returned to within three metres of her other tank, but she was pointing in the wrong direction."

Challen, Craig; Harris, Richard. Against All Odds: The inside account of the Thai cave rescue and the courageous Australians at the heart of it (pp. 53-54). (Function). Kindle Edition.

 

[wiggins]

Hey @Satanic, if you spent less time swallowing your dad's cum you'd have time to put up your own posts rather than just put a 'retarded' emoji on one of mine.

But hey, here's a hint. If your dad still gives it to you up the ass make sure he uses a condom. Just trying to keep you safe Rainbow.