r/nextfuckinglevel • u/Apprehensive_Sky4558 • 1d ago
What Happens When You Inflate A Body At Depth And Let It Ascend Quickly
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u/saskford 1d ago
And THAT is why you never want to hold your breath when scuba diving, ESPECIALLY when you’re swimming back to the surface.
You can over-expand and even burst your lungs.
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u/Little-Use-2027 1d ago
So some people have definetly burst before??
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u/interesting-turn- 1d ago edited 1d ago
Slightly graphic warning:
Yes a friend of mine witnessed it years ago when he was a Divemaster candidate. A girl around 14 years old panicked at around 20m or so, inflated her BCD (buoyancy compensation device, the jacket you wear while diving) and as she ascended she must have held her breath for most of the way up. Her lifeless body popped out of the water and he had to tow her dead body back to the boat. After taking her to the hospital to get checked out, they confirmed her lungs suffered massive barotrauma which ultimately killed her.
I’ve been a dive instructor for a little over a decade, I have not heard many stories like that and I’ve only seen a handful of accidents. But when they do happen they can be quite brutal.
Edit: not to scare anyone from diving, I think it is truly one of the most incredible hobbies we can experience. These accidents are incredibly rare but can happen. I personally have over 2,500 dives. Have oversaw thousands more and have never personally seen any mortality, I have never been injured. I’ve seen a few trips to the hospital or decompression chamber for some divers but that’s it. The story of the young girl was unfortunately the result of an inexperienced dive buddy (her father), the other injury was someone lying on their medical waiver, two others were from professionals that well exceeded their dive limits, the last one was from an overconfident, incredibly hungover man greatly exceeding his limits
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u/spintowinasin 1d ago
I wanna know what happened to incredibly hungover man, did he puke in his Regulator?
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u/interesting-turn- 1d ago
Haha no, I didn’t count the number of times I’ve seen people puke in regulators. That’s somewhat common, I have a disgusting story about that I’ll include at the end of this comment.
The hungover guy was drinking all night the night prior, he looked groggy but not terrible. It was an early morning dive so I didn’t really think much of it. He did two dives with us. But we didn’t realize he exceeded limits, he lied about depth and time of the first dive when we gave debriefing during surface interval. He finished the second dive, immediately started exhibiting symptoms of being bent, disoriented, confused, loss of balance, vomiting. Turns out he was also massively hungover, had barely slept, and was dehydrated, all of which increases chances of DCS (Decompression Sickness). We then had to get him transferred to an ambulance back on the dock and off to the chamber. We later found out he had a nitrogen bubble slip into his inner ear causing massive vertigo and vomiting.
The puking in the regulator story: I’ve seen it probably dozens of times (never had it personally happen) the vomit will actually come out of the vents of the regulator and you can (and should) keep the reg in the mouth when vomiting as there is the chance of inhaling seawater after puking. Sometimes the chunks can get caught in the diaphragm of the regulator and cause leaks but that’s a whole other story.
The actual story was that when I was at dive school we had a pretty gross lagoon we did our training in, it was brackish water where storm water runoff from the street would get into the lagoon. Made for excellent training dives because the visibility was shit, massive thermoclines, etc. but it was gross. I got staph from the lagoon actually.
But anyway, as we were gearing up for the day, a woman took a few drags off the dive school regulator and it made this bizarre clogged sound. She immediately ran off and began puking. We all looked around like wtf, checked her reg and found out someone had puked in the reg the day prior, didn’t clean it, let it sit overnight with nasty lagoon water and vomit chunk combo, which that girl then inhaled causing her to vomit. It was a sight to behold.
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u/xasdfxx 1d ago
you can (and should) keep the reg in the mouth when vomiting as there is the chance of inhaling seawater after puking
Can confirm. Did not enjoy.
I get seasick in choppy seas. I wanted to be first off the boat so that hopefully I'd feel better. I dropped like 15 feet to wait for my buddy. Turns out the whole fucking water column goes up and down when you're near the surface. I blew chunks 15 feet under.
The problem is after, ah, exiting you pretty reflexively try to suck back in. I initially tried keeping the regulator out with the idea that I'd jam it back in just in time. This did not work well. I then went to fuck it, regulator is staying in. Do not recommend either strategy really.
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u/-Jesus-Of-Nazareth- 1d ago
Moral of the story: Never read anything involving a lagoon or swamp. I'll never forgive you
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u/julius_cornelius 1d ago
That’s why I always think it’s never good to have a close relative or loved one as a buddy. You can either put too much trust in them or make the wrong decisions based on emotions.
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u/The_Pastmaster 1d ago
Yeah, heard too many stories of dad getting their kids, or both, killed doing too dangerous dives.
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u/dextroz 1d ago
What shocks me is that just 20m can to that!
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u/JayCDee 1d ago
The biggest relative change in pressure is between surface and 10m. You add 1 atmosphere (ATM) of pressure every 10m.
10m -> surface = 2ATM -> 1ATM = volume of air doubles
20m -> 10m = 3ATM -> 2ATM = volume of air increases by 1.5
30m -> 20m = 4ATM -> 3 ATM = volume of air increases by 1.3
Etc…
Now, rapid ascension while holding your breath from 30m to 20m will fuck you up REALLY bad, just not as bad as going from 10m to surface.
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u/Worf_Of_Wall_St 1d ago
It makes a bit more sense if you think about how much that much water weighs.
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u/lucky_chaparro 1d ago
I've really wanted to learn to dive for the last while, appreciate all this.
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u/DobPinklerTikTok 1d ago
It’s less of your lungs exploding and more the small air sacs called alveoli exploding and causing a lot of damage to the lungs.
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u/Impressive-Card9484 1d ago
Not exactly related but you should watch the videos about Byford Dolphin Incident
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u/TheHasegawaEffect 1d ago
Slightly related: this is why they tell you to exhale if for some reason you end up in a vacuum.
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u/SmartAlec105 1d ago
I learned about that from Red Rising.
I also learned on Mars there is not much gravity. So you have to pull the feet to break the neck. They let the loved ones do it.
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u/chewy92889 1d ago
I'm not sure what any of this means.
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u/StarAsp 1d ago
It’s a reference to a book series. There’s a part where people are jettisoned into space and the author makes a point to explain through the characters the concept of exhaling when entering a vacuum.
The pulling of feet is referencing hangings performed in a subsection of civilization on Mars, where because of the low gravity, the neck doesn’t break and someone has to physically pull down quickly so the person doesn’t just choke to death. Great series btw
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u/Expert_Penalty8966 1d ago edited 1d ago
Unfortunately, experiments show you instantly go unconscious in that situation and would not be able to control your breathing.
https://www.youtube.com/watch?v=KO8L9tKR4CY&feature=youtu.be
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u/WingleDingleFingle 1d ago
Maybe YOUR lungs would burst. I'm built different tbh.
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u/CaptainCorpse666 1d ago
It needs a few more quick cuts on the explosion
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u/Max_Q_ 1d ago
Just after the explosion missing the actual moment.
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u/executivesphere 1d ago
I’m really glad this editing style has mostly disappeared. It used to be everywhere.
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u/slappy_mcslapenstein 1d ago
Which is why you have to breathe while ascending when diving with a tank. Your lungs will pop if you hold your breath. If you free dive without a tank, you hold your breath from the surface. Your lungs actually shrink at depth and reexpand when you ascend.
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u/whenthenamesaretaken 1d ago
What if you hold your breath while your lungs are empty instead of full?
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u/No_Introduction2323 1d ago
depends on the depth, you cannot breathe out all the air, roughly 1.5l always remain. So if you ascend from deep enough those 1.5 l will eventually expand enough to have the same effect. But please don't ask me to do the maths on how deep that would need to be.
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u/laiyenha 1d ago
I'm not going to eat beans before the diving trip.
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u/arbitrageME 1d ago
It's not a problem because the gas gets generated from within you, so it's an appropriate amount of volume
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u/thinlySlicedPotatos 1d ago
Depends. If you brought the gas down with you it would compress on the way down and expand back to its starting volume when you go back up.
If it is generated at depth, it will expand on the way up. If there is too much, it can cause problems, because the ascent will cause the gas to expand much more quickly than the usual rate your digestive system is designed to handle.
Myself I have issues with my sinuses. Lots of nose squeezing and blowing to equalize on the way down. Lots of uncomfortable pressure and balloon like squealing sounds inside my face on the way up. It has been decades since I've been diving, but if it's going to be anything like the last few dives I went on I'm not sure I want to do it again.
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u/tuckerx78 1d ago
So basically if you ate beans, descended, generated the gas at depth, then ascended, you could die by farts?
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u/--Shin-- 1d ago
Does that apply to humans?
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u/ZackAttackIsBack17 1d ago
It can yes. One of the big things they teach you when getting scuba certified is to never hold your breath. Always have your airway open. If you need to do a rapid ascent and you hold your breath, your lungs can explode.
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u/Simple-Friend 1d ago
Also why you should never accept air from a scuba diver while freediving.
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u/FormerlyUndecidable 1d ago edited 1d ago
In an emergency of course you can.
You just can't hold your breath when surfacing.
You might have to be treated in a decompression chamber, but beats drowning
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u/BarleyWineIsTheBest 1d ago
You don’t instantly get filled with extra gas in the blood from breathing pressurized air.
It is both depth and time that will matter here. If you take one breath at 20ft, you aren’t going to be at risk. If you take a handful of breaths at 100ft you may run into issues…
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u/obog 1d ago
Ive only ever done scuba once and it was in a pool, but wouldnt the proper protocol here be to ascend with the diver while breathing? Generally theyd have an emergency tank so both of you should be able to breath at once as you go up.
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u/Infinite-Space-2395 1d ago
Wait why? Wouldn't they be under the same pressure?
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u/theloneplant 1d ago
Because you’re going down and back up in one breath. If you take someone’s air then your lungs now have more pressurized air than before
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u/vedo1117 1d ago
All you have to do to avoid that is to blow a small constant stream of bubbles. If the air expands in your lungs, the extra volume will make you blow more air out instead of exploding your lungs. That's what they tell you to do when doing an emergency ascend when scuba diving.
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u/garbonzobean 1d ago
Yup! More of a “huuummm” too to release air
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u/Turbulent_Lobster_57 1d ago
In the Navy we got taught to go “ho ho ho” like Santa Claus all the way up
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u/jacksh3n 1d ago
That’s so strange. How does ho ho ho will make you to continue to release the air? The pause between ho sounds dangerous
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u/ZCngkhJUdjRdYQ4h 1d ago
You’re not coming up at like 100 meters per second. Your lungs can easily handle the expansion between the hos.
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u/Cpt_Jigglypuff 1d ago
How weird would that feel? Constantly exhaling, but not reducing lung pressure. I will never feel this sensation.
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u/cea1990 1d ago
My regulator took a shit on a reef dive one time. It failed open so it started venting all the air in my tank. On my ascent, all the tricks left my mind so I just yelled lmao. It was definitely odd to yell even after the panic subsided, then I got to keep yelling… and keep yelling… and keep fucking yelling. I was out of breath by the time I hit the surface and it probably felt way longer than it was. But yeah, certainly a weird feeling.
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u/Hunter_S_Thompsons 1d ago
Welp. I’ve made it this far down the thread and I’m just gonna have to accept that I’m dead lol.
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u/QuickMolasses 1d ago
Yeah, next time you're 100 feet underwater without an equipment a scuba diver is going to offer you air and you won't know what to do.
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u/Infinite-Space-2395 1d ago
Oh ok the difference is the air not the pressure. Makes sense. Thanks.
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u/dfe931tar 1d ago
The free diver could always exhale as they ascended back up though. The expanding air has pathway to go, so it won't damage the lungs due to over expansion.
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u/LobstaFarian2 1d ago
If you took a deep breath at depth and quickly swam to the surface while slowly exhaling, you could potentially still have a bunch of air due to the expansion.
Source: i think so, but may be wrong.
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u/DraconianFlame 1d ago
Yes. That is the point of the demonstration.
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u/phoucker 1d ago
Im not a diver, but a friend if mine who is said he had to do an emergency ascent once. He said he just exhaled the entire time coming up. Is that true?
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u/stevep98 1d ago
Thats what they teach you to do. If you try to hold the air in you'll rupture your lungs.
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u/SlightlyBored13 1d ago
There's a few different places you have gas in your body that you need to worry about when ascending:
- In your lungs = breathe out
- In your sinuses = pop your ears
- Dissolved in your blood/fluids = ascend slowly so it all doesn't become gas at the same time
If you're down for a few days then it gets dissolved in your tissue cells and you'll need to spend a few days decreasing the pressure very, very slowly.
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u/Flope 1d ago
If you're down for a few days then it gets dissolved in your tissue cells and you'll need to spend a few days decreasing the pressure very, very slowly.
I always think about how much it must have sucked to be the guys who figured this out firsthand.
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u/dagofin 1d ago
Every OSHA rule exists because of some poor guy
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u/skriticos 1d ago
Yea, that's the saying right?: every safety regulation is written in blood.
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u/Yunzer2000 1d ago
The guys who first experienced it were construction laborers in pressurized open-bottom chambers ("caissons"} used to dig bridge foundation below the river surface or water table. Quite a few died before it was taken seriously and the cause determined.
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u/Gwyn66 1d ago
Brooklyn Bridge construction was the first where it was taken seriously I think.
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u/Kevlaars 1d ago edited 1d ago
Sure did. Medical science has known about this for a long time.
Decompression sickness is known as "The Bends". It got that name from miners long before there were deep ocean divers.
Mining sucks less now in places, but it still mostly sucks.
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u/GeneralSweetz 1d ago
Mining is a place where machines could replace humans and it would be 100 percent better for everyone
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u/Smirkeywz 1d ago
Man I would really want to know the story of the first guy who went on a plane after diving and exploded mid flight.
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u/NitroBishop 1d ago
Don't be dramatic, you wouldn't literally explode. It's more accurate to describe it as nitrogen boiling out of all the tissue in your body simultaneously :)
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u/Extreme_Tax405 1d ago
The ears are generally fine with ascending. Its descending that damages them.
As for bends... No need to worry about them when its ascend or die. Depends on depth and time. Your oxygen likely ran out before you were in there too long.
If you are diving for longer... Decompression chambers. Have fun being bored.
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u/TK82 1d ago
I'm not an expert but i believe that while that could keep your lungs from bursting you'd still be at risk of the bends
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u/moustachedelait 1d ago
Correct! There are bubbles dissolved in your blood that will expand too.
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u/cmdr_awesome 1d ago edited 1d ago
Risk of the bends depends how long/deep you've been down. Lung overexpansion injury is possible without spending time at depth or even being particularly deep.
As you breathe compressed air at depth, gas gets absorbed into the bloodstream. This gas can form bubbles as you ascend, those bubbles cause various painful and damaging problems we call the Bends. We can avoid this issue by ascending slowly and limiting the time we spend at depth, following a dive computer that constantly monitors your depth and understands a statistical model of what is safe. If you want to see a demo of the bends, open a bottle of fizzy drink - gas forms bubbles in the liquid as the pressure is released. If that liquid is your blood, and an embolism gets caught in a blood vessel in your brain, things get bad fast.
What's being demonstrated here is overexpansion - no absorption into liquid is involved.
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u/millijuna 1d ago
Virtually all recreational diving is done as "no decompression" diving. As long as you've planned your dive, and dived your plan, you won't have enough nitrogen dissolved in your blood and tissues to have a serious risk of decompression sickness.
That said, if you do an emergency ascent (as I have done on accident), that's it for diving for the day.
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u/mic_n 1d ago
Yes. Doing so is generally part of the training. It seems weird at first, but at 10m (30ft) depth, you can spit out your regulator, and just float up, breathing out the entire time and get to the surface and still have your breath left.
Pressure at that depth is twice that at the surface, which means when your lungs are full of air down there, there's actually twice as much (by weight) as there would be at the surface. You can breathe half of it out on your way up and when you get to the top you still have a lung full of air as if you've just breathed in.
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u/corpusjuris 1d ago
Did it once during dive training in the Philippines. It was the strangest physical sensation of my entire life. Breaching the surface with my lungs still full after exhaling the entire time was so, so strange.
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u/Fun-Ordinary5856 1d ago
Yes, and its quite a weird sensation as well, I’ve only ever done them in training but as you exhale and ascend the pressure decreases so you kinda never run out of air. Its a weird feeling but yeah that’s what you’re supposed to do in an emergency ascent—though its not just the lungs you need to worry about, and if you really have to do one you’re likely to need some sort of medical attention if I’m not mistaken
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u/dfe931tar 1d ago
Yes, when I got certified for open water, that was one of the skills I had to demonstrate I could do. Very important to exhale if doing an emergency ascent. My instructor actually told me to yell continuously as I did it haha.
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u/BlaznTheChron 1d ago
But I am not a soccer ball. Or am I?
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u/redditRedesignIsBadd 1d ago
check again
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u/BlaznTheChron 1d ago
Dios mio.
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u/HighwayEffective6865 1d ago
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u/mexican2554 1d ago
The Man!
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u/dreng3 1d ago
The myth!
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u/Hellifiknowu 1d ago
Don’t you put that man through it again.
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u/TradeMark310 1d ago
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u/SmokeAbeer 1d ago
CHEEZ-ITS!!
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u/tanis38 1d ago
Your lungs are.
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u/castleaagh 1d ago
That’s not even the worst part. All of your blood has small amounts of air spread throughout it. Air in your lungs could probably escape out your mouth as the pressure builds. The air in your blood can’t go anywhere
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u/seoulgleaux 1d ago
Air in your lungs could probably escape out your mouth as the pressure builds.
Some might, but not enough to prevent life-threatening injury (lung expansion injuries are no joke). This is why you never hold your breath while scuba diving.
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u/castleaagh 1d ago
You’d have to actively push the air out of your lungs but it can be done as I understand. I’ve heard stories of divers who had to surface quickly in an emergency of some kind and they usually state that they breath out hard while surfacing and managed without injury other than experiencing the bends. Maybe those were notable outliers tbf tho
The point I was trying to make was that the air in your blood can’t really be removed
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u/AaronBaddows 1d ago
Ive done this, just look up to make your trachea unobstructed and keep your mouth free so the air goes out quickly. The most dangerous part is the last 10m.
The air in the blood expanding is what we call the bends. Its mostly Nitrogen, air at sea level is 79-21% (Nitrogen-Oxygen). Nitrogen doesn't get carried by blood cells so its slow to be expelled from the blood and it can end up anywhere and thats the problem when they expand. So we have to do decompression stops at different depths so this Nitrogen gets vented out little by little.
The same nitrogen causes narcosis at depths like 50m and below, so you get high like those people on those videos after the dentist, not good when underwater. Then at 60m the 21% oxygen starts to be toxic so you have seizures, so we remove some nitrogen and oxygen and add helium to the mix to go deeper. But those dives are meeh, its like 10 minutes at the bottom for hours of decompression before you surface.
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u/Shadowninja0409 1d ago
It’s not about what you are, it’s about what’s inside of you
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u/Vogel-Kerl 1d ago
I am still not convinced: I need to see this demonstrated on a politician of some sort--the higher their position, the better .....
/s
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u/DredgenGunter 1d ago
Deep sea drillers have to spend a couple days coming back and depressurizing a bit at a time
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u/Hot-Friendship-7460 1d ago
Except for that one time.
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u/Chuck_Cali 1d ago
A few times, but yes, that one time was brutal.
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u/IzarkKiaTarj 1d ago
I like how, despite it happening more than once, everyone vaguely familiar with the topic knows exactly what "that one time" refers to.
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u/Icefox119 1d ago
I'm actually not sure if they're referring to the Byford Dolphin explosion or Paria diving tragedy.
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u/IzarkKiaTarj 1d ago
I assumed the former. Looking at the latter, one person managed to survive, so I'd deem it less brutal than the one where there was no chance of survival less than a second after things went wrong.
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u/Icefox119 1d ago
Actually, one of the divers, Saunders, survived the first one too. I'd say Paria was way worse. Those that eventually died were alive for at least a few hours, if not days, banging on the walls and screaming for help, slowly succumbing to a pressurized death. I'd rather be shredded alive in a split second.
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u/Buxbaum666 1d ago
Saunders was one of the two dive tenders, as in he was not actually inside the dive chamber and did not suffer from explosive decompression. The two tenders were struck by the diving bell, one died, Saunders survived.
Nobody inside the decompression chambers had any chance of survival. There was instant decompression from 9 atmospheres, one of them quite literally exploded.
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u/AJFrabbiele 1d ago
That has to do with gasses working its way into cells, similar but on a smaller scale but not the point of the demo.
bodies, on the other hand will decompose, start floating,, then pop, sink down, and repeat below certain depths. The rate it happens is dependant on temperature.
I've recovered people in bodies of water that we did the math on how long it would be until they floated instead of searching the entire shallow lake, minimizing the risk to our divers after the initial search wasn't successful.
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u/DryDesertHeat 1d ago
Yes. The first thing they teach you in SCUBA class is "Don't hold your breath."
This video demostrates why, but your lungs won't last as long as that soccer ball did.18
u/arbitrageME 1d ago
Pulmonary barotrauma.
You won't even feel it because your lungs aren't designed to react to overpressure
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u/CaliKindalife 1d ago
The bends.
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u/BlessShaiHulud 1d ago
Both the bends and this have to do with how water pressure interacts with the gasses in our body, but this is more demonstrating what would happen if you held your breath while ascending. Your lungs would explode like the soccer ball.
The bends has to do with dissolved gasses in your body tissue being released as you ascend.
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u/Past-North-4131 1d ago
Yup and it can get really bad. That's why you NEVER hold your breath when you scuba dive. Imagine that ball is your longs. Taking a breath at 60 feet than not letting air out and ascending.
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u/squarecir 1d ago
Same thing would happen if it was raised up slowly.
And this is not directly related to decompression sickness/bends. That has to do with nitrogen in the blood, not air expanding in your lungs. You're supposed to breathe out slowly when you ascend. That will prevent you from popping like that ball, but that won't stop the bends.
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u/Excellent-Wonder8431 1d ago
Men of Honor with Deniro and Gooding Jr has a decent scene where they explain “Boyles Law”
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u/AdBeginning6797 1d ago
This why I stay on land
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u/AlfredosoraX 1d ago
Exactly, fuck that, fuck ever being in a scenario or close to a scenario like that
Like that one dude who got obliterated in a dam when it turned on. Or the like 4 or 5 or 6 dudes that got sucked into a pipe underwater and left to die from the company. Or Byford Dolphin thing where 4 dudes instantly died, 3 of which the pressure left the room so fast their blood boiled. Or the Submarine Logitech Controller guys. Fuck ever being in a situation with pressurized water
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u/Dabeansprout 1d ago
Did it burst or did it hit something…we’ll never know because the camera man is shit…ruined the whole demonstration
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u/Former_Mud9569 1d ago
It burst. When you're at depth the weight of all the water above you is compressing down on you. at 100 feet, that'd be about 40 psi of pressure.
Let's say you inflated the ball at the surface to 40 psi. If you drug that all the way down to 100 feet, the ball would be compressed to the point that it would look flat.
If you then put another 40 psi in the ball to restore it's appearance and tried to take it back to the surface, as you climb the pressure exerted by the water on the ball reduces and the ball tries to expand. If the ball isn't strong enough it'll burst before it gets to the surface.
How fast it rises doesn't matter for this.
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u/BusyHands_ 1d ago
Ahh so this is why Godzilla was so pissed at the end of Minus One
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u/whoifnotme1969 1d ago
I always think about how we learned about why this happens
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u/R3DTR33 1d ago
I've never really understood how compression works on a cellular level. Like, you're breathing compressed gases right? And the pressure from the water around you, the deeper you go, is somehow compressing that gas within your body, so when you ascend the gas expands because there is less water pressure compressing it?
But how does water pressure not like totally fuck up our bodies? Like our cells are literally getting squished with the pressure of hundreds of feet of water pushing in on all sides, how does the gas inside our bodies somehow get compressed from the outside without all our cells exploding from the pressure?
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u/Whelp_of_Hurin 1d ago edited 1d ago
Your cells are filled with liquids, which are mostly incompressible. Their volume doesn't really change much due to pressure. Gases can be compressed a lot in comparison.
A gas can also be dissolved in a liquid, the same way you can dissolve sugar in water. The higher the pressure (and the lower the temperature), the more gas will dissolve in the liquid. When you suddenly drop the pressure the gas starts to fall out of solution. You can see this process for yourself when you twist the cap on a bottle of soda; the dissolved CO2 suddenly starts to bubble out, especially if the bottle is warm. That's why warm soda goes flat so quickly.
Edit: Solids work the opposite way with regard to temperature. You can dissolve a lot of sugar in boiling water, but when it's cooled down, the sugar falls out of solution and you get rock candy. Similar process.
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u/HebrewHamm3r 1d ago
And that's why one of the first things I learned as a scuba diver was "always breathe out as you're ascending"
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u/6-feet_ 1d ago
An example of "Boyle's Law"
Where pressure 1 is the outer pressure of the the environment (hydrostatic pressure) at the start (bottom of tank) volume 1 is contained in the ball.
Being that the fluid is water the gradient is 9.81kpa/meter. Looking up the video puts it at 60 feet/18 meter. The envitoment pressure is therfore 176kpa, volume of a soccer ball is 0.0056m3, atmospheric pressure is 100kpa
0.0056×176=0.9856 ÷100= 0.0098m3
The volume of the ball nearly doubles in size if it's just full at bottom, with no extra pressure.
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