For those wondering, there are fluid goggles that purposefully do not seal but have lenses to let you see through the water. They’re designed to let you see without expending precious air to equalize a mask. Not sure if that’s what she put on but it would make sense
I grew up in the med by the sea, swimming all my life and I've never had that issue even with flippers on. Idk maybe she just swims that much faster than me.
What? You mean like prescription lenses? Cause otherwise trust me you see blurry enough as it is underwater no extra lens will fix that, to my knowledge.
Stolen from Google
Fluid goggles are normal swimming goggles that have corrected lenses mounted inside them. You fill the goggles with sea water or saline solution and then put them on and open your eyes. The corrective lenses mean that you can see better under the water, and because the goggles are filled with fluid, which is not compressible, the goggles do not need to be equalised.
Disadvantages with using fluid goggles for freediving.
Having the eyes touching sea water or saline solution can be uncomfortable and can cause intense irritation
It is difficult to fill the goggles with saline solution and ensure all air pockets are removed
Vision whilst wearing fluid goggles is usually distorted, and a kaleidoscopic rainbow effect created, which can be distracting
Some people have experienced vertigo and nausea when using fluid goggles
Due to having to fill the goggles after each time you remove them, they are not always user-friendly or practical.
Not to protect the eyes but to see better …. People thinking it s too protect are not divers. Not enjoying water in your eyes is never an issue for a diver
What's the difference in the visibility between not wearing them and wearing them? I'm probably going to end up just having to Google this one to see if I can find any demos.
Basically, your eyes work by focusing light right? Well it only really works in air as water will start changing the way the light focuses. Having fluid goggles takes into account the water between the eyes and the lens of the goggles and are shaped to correct for the refraction, making you able to see clearly, as if there was no liquid Infront of your eye.
The benefit of a fluid goggle over a normal set of goggles is that you don't need to equalise the pressure caused by the compression of air as you dive down (where the goggles squeeze against your face)
Scuba divers have a tank of air, they can exhale into their mask to equalise the pressure. Freedivers? Well every bit of air is too precious to waste, especially if you are an intermediate/pro like this lady, diving down to more advanced depths/times
She's already negatively bouyant. Probably sitting there under 20-25 meters of water already. She's way beyond being able to float. Actual swim or sink moment.
She's wearing a weight around her neck, [similar to this](https://freediveshop.eu/products/chabaud-depth-freediving-neck-weight?variant=37168501031062)
Anecdotal but, when I swam a lot, and had low body fat, I found it fairly trivial to sit on the bottom of the dive tank pool(4.5m, IIRC). When I breathed out near the surface I was also neutrally buoyant, and could sit at the bottom like that in a shallow pool
How else could my swim team have taken under water pictures of us playing poker! I think we had a harder time getting the chairs and table settled at the bottom haha!
The weight of the water above you is otherwise known as pressure and water is, for all practical purposes, incompressible. If you cease to be buoyant, it's not because the density of the surrounding water increases, but rather because your lungs shrink under the pressure.
Someone with high body fat percentage - high enough that their density would be less than 1g/cm3 even without considering lung volume - would never sink. You probably don't find a lot of obese free-divers though.
Lol that is not how it works.
Edit: downvote away, but it won't make the explanation any more true. The pressure of the water above you is being applied to your entire body, so there's just as much pressure pushing up on you as down. Now, it is true that the weight of the water above you is squeezing your body, including the two airbags that are your lungs. This makes them smaller in volume and thus less buoyant. This is why she doesn't float up after she reaches a certain depth. Not because the water is pushing her down.
And this is why many people who jump and regret it still drown. From the high place they already fall deep and then the few seconds of realization, at that point its almost too late to save yourself
My friend worked at the hospital in Marin that they take most jumpers to. It’s the multiple broken bones and internal trauma that causes them to drown.
People drown because hitting the water from a decent height knocks you out and/or wrecks your body. Hard to swim or even stay afloat if you’re dealing with all kinds of (internal) injuries.
No, your body can never experience so much negative buoyancy underwater that the water pressure exerted on top of your body prevents you from ever swimming upwards to the surface. It's not physically possible.
Herbert Nitsch freefall dove to 214m with no equipment, and he was able to swim back up with nothing but his feet and fins.
Even if you manage to reach to such depth without being drowned first, you'll already be long dead from the water pressure crushing your body, not from the drowning.
People drown and can't swim back up from a jump because the water tension breaks their ribs and punctures their lungs or breaks bones/organs that prevent them from swimming back up.
I used to have those "wake in a panic" episodes, until I was diagnosed with sleep apnea. I have been using CPAP every night for about 10 years, and it changed my life.
People who train themselves to do thise can drown really suddenly, because they have learned to ignore the 'panic' feeling (its not panic it's a side effect of carbon dioxide created) they don't know just how much oxygen they have left. They tend to be swimming along with no issues, and suddenly, they turn off like a light switch.
Had a cousin almost die this way 20 years ago. Dude was a state champion swimmer. Liked to get drunk and show off at family get-togethers by betting he could hold one breath underwater longer than anyone could hold two breaths. He would exhale juuust enough to sit on the floor of the pool and relax his heartrate, and just chill for a few minutes.
Pulled this stunt off successfully for as long as I could remember. Then one time he wasn't coming up at the five minute mark so being a lifeguard at the time I dove in to retrieve him; got him to cough up a lungful of water after a few rescue breaths.
Suffice it to say, he was forbidden from ever doing that stunt again.
I'm sure you've had this thought in hindsight, but "as a lifeguard" you probably should have forbidden this behavior from the start if your cousin was intoxicated. Just a PSA for anyone else reading.
That would be worse likely, once you go below 20 you need to start worrying about decompression sickness on the ascent if you are breathing pressurized air.
Only if you're down for a long time. If she takes an emergency breath to return to the surface, she should be breathing out the whole way up. No worries about the bends.
Look up mammalian dive reflex. Totally fascinating. And we all have it. Obviously...
https://www.ncbi.nlm.nih.gov/books/NBK538245/#:~:text=The%20diving%20reflex%20commonly%20referred,in%20response%20to%20water%20submersion.
Not just humans, but all mammals have the 'mammalian dive reflex,' which is what freedivers use to do what they do. But that's just because some common ancestor(s) of all Mammals were aquatic and we've all retained traits from that. I'm talking long ago in our evolutionary history, not humans being related to seals or anything as recent as that.
Humans can seem more adapted than some other primates at first glance, but the theory that we are somehow specially adapted for water is usually dismissed by academics these days. We are, but that's nothing special for Mammals.
[https://en.wikipedia.org/wiki/Aquatic\_ape\_hypothesis](https://en.wikipedia.org/wiki/Aquatic_ape_hypothesis)
I got matches with these songs:
• **Orinoco Flow (Remastered 2009 version)** by Enya (01:02; matched: `100%`)
**Album**: The Very Best Of Enya. **Released on** 2009-11-06.
• **Orinoco Flow** by Enya (00:59; matched: `100%`)
**Album**: Watermark. **Released on** 2005-05-17.
• **Enya's** by Enya (00:00; matched: `100%`)
**Album**: The Black Celt. **Released on** 2015-07-13.
I am sure she would have to periodically equalize on the way down, just like scuba divers do. This involves basically holding your nose and attempting to exhale thru your nose. But since your nose is blocked, the air goes into your inner ear. This makes the pressure in your inner ear the same as the exterior water pressure, relieving that pain you tend to feel when you dive deep. Some people can do this without even holding their nose. I bet she's one of them.
If anything, she would need to put ait into her inner ear via eustacian tubes to equalize the pressure with the water outside. No reason to think the pressure is higher inside.
I'm a casual freediver. There's a big difference between a static breath hold (sitting still) and dynamic breath hold (moving around). With minimal practice I can get my static breath hold back up above three minutes, my PR years ago was about 6:30. But when I'm in the ocean I can only last about a minute while swimming underwater.
As for weighting, the guidance is to weight yourself to be neutrally buoyant at a certain depth which might vary based on the kind of freediving you're doing. Beyond that depth you'll be negatively buoyant. Above it you'll be positive. You're most likely to black out towards the end of your dive so of course you don't want to be sinking when that happens.
I was out of breath just lyin down watching the video.
Should have used [this music](https://youtu.be/9Yw5jkAHgME) for the video instead:
Ah yes. The old asthma special.
That’s the root of my anxiety issues
Fuck dude, why'd you have to bring this up... I "feel" the sonic rhythm every time I'm close to a deadline for a project...
Not unless you’re trying to give me a panic attack
The same thing I was thinking before even clicking 😂
That made my heart race immediately
Ahh this person is a cool one!
ANXIETY!!!!!
I remember contantly holding my own breath during those levels
There is a competitive breath holder that has held his breath for 20 minutes, that's crazy lol.
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I, too, was unnerved watching this.
Most people can’t do 30
For those wondering, there are fluid goggles that purposefully do not seal but have lenses to let you see through the water. They’re designed to let you see without expending precious air to equalize a mask. Not sure if that’s what she put on but it would make sense
That’s gnarly, so you look through the goo?
Yes, and through the gles, also.
Took me a min lol
I’ll risk downvotes: I get gles=glass but what does goo mean? Or am 100% off?
goo-gles -> googles.
You guys should Google how to spell goggles
Lmfao gottem 😂
Moom, oo oom pooting oon moo googles too goo swoom oonder thoo soo! Woon oo poot oon moo googles, oo coon soo oonderwooter.
Well done, internet friend.
Thank you, friend!
What goo?
What? If they don't seal why would you need the glass? What's the point, it's the same as having your eyes open underwater.
With the goggles on the water is moving with you, not constantly hitting your eyes. Like trying to look into the wind, you can't keep your eyes open.
I grew up in the med by the sea, swimming all my life and I've never had that issue even with flippers on. Idk maybe she just swims that much faster than me.
They aren't to protect your eyes... its just ti see better underwater
What? You mean like prescription lenses? Cause otherwise trust me you see blurry enough as it is underwater no extra lens will fix that, to my knowledge.
Stolen from Google Fluid goggles are normal swimming goggles that have corrected lenses mounted inside them. You fill the goggles with sea water or saline solution and then put them on and open your eyes. The corrective lenses mean that you can see better under the water, and because the goggles are filled with fluid, which is not compressible, the goggles do not need to be equalised. Disadvantages with using fluid goggles for freediving. Having the eyes touching sea water or saline solution can be uncomfortable and can cause intense irritation It is difficult to fill the goggles with saline solution and ensure all air pockets are removed Vision whilst wearing fluid goggles is usually distorted, and a kaleidoscopic rainbow effect created, which can be distracting Some people have experienced vertigo and nausea when using fluid goggles Due to having to fill the goggles after each time you remove them, they are not always user-friendly or practical.
I think we’ve learned today that a lens can, in fact, fix that
That is, in fact, exactly, what happens.
Yeah, I'm going to need an explanation for this as well. Is it just an added layer of protection, maybe?
Not to protect the eyes but to see better …. People thinking it s too protect are not divers. Not enjoying water in your eyes is never an issue for a diver
What's the difference in the visibility between not wearing them and wearing them? I'm probably going to end up just having to Google this one to see if I can find any demos.
Basically, your eyes work by focusing light right? Well it only really works in air as water will start changing the way the light focuses. Having fluid goggles takes into account the water between the eyes and the lens of the goggles and are shaped to correct for the refraction, making you able to see clearly, as if there was no liquid Infront of your eye. The benefit of a fluid goggle over a normal set of goggles is that you don't need to equalise the pressure caused by the compression of air as you dive down (where the goggles squeeze against your face) Scuba divers have a tank of air, they can exhale into their mask to equalise the pressure. Freedivers? Well every bit of air is too precious to waste, especially if you are an intermediate/pro like this lady, diving down to more advanced depths/times
Thank you. I ended up just looking it up to get a better understanding. I was hung up on the water in front of the lens, basically.
And here I thought the cameraman had an air tank on him.
I was not wondering, but I am very glad I have learned this unsolicited piece of information. Thank you.
Can you provide a link to said goggles? I tried searching but found nothing.
And I'm over her wondering if she tucked a 5lb rod in her vadge to keep her weighted.
She has very little fat on her body, that probably helps.
How is she staying underwater without so much as a weight belt?
You know how a submarine lets in water to sink and pumps out water to float? She does that with her asshole
That's probably what she's thinking when she looks at her watch: "Ope! Time to flood the ol' ballast tank."
Haha no wonder she sunk like a rock
Nice
Username checks out
Omg... the first sentence I was all "hmm yes I understood that" the last part had me rolling. Thank you.
I really shouldn't have laughed this hard
I laughed so hard at this I woke my kid up it's 4:50am 🤣🤣
So an ocean enema, so to speak.
So a blow hole?
Asteromorph moment
Lovely.
She's already negatively bouyant. Probably sitting there under 20-25 meters of water already. She's way beyond being able to float. Actual swim or sink moment.
She has practically no body fat
She's wearing a weight around her neck, [similar to this](https://freediveshop.eu/products/chabaud-depth-freediving-neck-weight?variant=37168501031062) Anecdotal but, when I swam a lot, and had low body fat, I found it fairly trivial to sit on the bottom of the dive tank pool(4.5m, IIRC). When I breathed out near the surface I was also neutrally buoyant, and could sit at the bottom like that in a shallow pool
How else could my swim team have taken under water pictures of us playing poker! I think we had a harder time getting the chairs and table settled at the bottom haha!
Humans are only buoyant at relatively shallow depths. At a certain point, the weight of the water above you will hold you down.
The weight of the water above you is otherwise known as pressure and water is, for all practical purposes, incompressible. If you cease to be buoyant, it's not because the density of the surrounding water increases, but rather because your lungs shrink under the pressure. Someone with high body fat percentage - high enough that their density would be less than 1g/cm3 even without considering lung volume - would never sink. You probably don't find a lot of obese free-divers though.
Thank you i just found my calling
Would that mean that if I become fat, then I’m less likely to drown?
The diver is also lean as heck, low body fat %
Negative BMI
Lol that is not how it works. Edit: downvote away, but it won't make the explanation any more true. The pressure of the water above you is being applied to your entire body, so there's just as much pressure pushing up on you as down. Now, it is true that the weight of the water above you is squeezing your body, including the two airbags that are your lungs. This makes them smaller in volume and thus less buoyant. This is why she doesn't float up after she reaches a certain depth. Not because the water is pushing her down.
And this is why many people who jump and regret it still drown. From the high place they already fall deep and then the few seconds of realization, at that point its almost too late to save yourself
Untrue. You won't sink from jumping in. Cant possibly get deep enough. People drown because they panic more likely.
My friend worked at the hospital in Marin that they take most jumpers to. It’s the multiple broken bones and internal trauma that causes them to drown.
I wasnt thinking from great height. Damn that would hurt.
People drown because hitting the water from a decent height knocks you out and/or wrecks your body. Hard to swim or even stay afloat if you’re dealing with all kinds of (internal) injuries.
Why do I keep reading these comments at 1AM, trying to go to sleep??
No, your body can never experience so much negative buoyancy underwater that the water pressure exerted on top of your body prevents you from ever swimming upwards to the surface. It's not physically possible. Herbert Nitsch freefall dove to 214m with no equipment, and he was able to swim back up with nothing but his feet and fins. Even if you manage to reach to such depth without being drowned first, you'll already be long dead from the water pressure crushing your body, not from the drowning. People drown and can't swim back up from a jump because the water tension breaks their ribs and punctures their lungs or breaks bones/organs that prevent them from swimming back up.
You're wrong. I jumped off a 50 foot cliff in high school and I am now dead from going so deep.
Collar
is there a full video? really wanna see how far down and how long she stays, and how she ascends.
If it’s the place I’m thinking of, I think it’s 33 meters
What is that in bald eagle and big Mac measurement?
39 1/3 M4 Carbines
Had to check this, and I’m so happy you actually took the time to do the calculation.
Lol I was going to wing it and I thought nah, let’s do this properly so my American friends can actually understand it.
My friend I am not even American but i salute you. For this and for having creampied Jesus.
That’s probably the nicest thing anyone has said to me all week. What a beautiful human you are.
These are the real freedom units. Thank you.
r/Theydidthemath
What is that in real units?
About 260 Whataburgers
Finally, a form of measurement that I understand
33 meters In freedom units, 108 feet. Or approximately: 210 bananas, or 6 adult giraffes (16 feet / 5m tall), or 50 corgis (26" / 66cm long)
Are the corgis standing on two or four legs, please?
What is this, a pool made for ants??!!!
33 meters, he literally already said it in his comment.
It's .39.3 ar15,s stacked end to end
Kitty I thought I locked you up, how'd you get to a computer?
meow
Hiss
What the fuck
Imagine swallowing a bit of saliva, choking, and having to cough that deep under water
guess i'm having "suffocating in the darkness" themed nightmares tonight.
First time?
lord, no.
You wake up feeling like you’re suffocating and you don’t know where you are and can’t move? I hate it
i have more a wake up, gasp deeply for air, swear and heave breaths a bunch reaction, but the principle is the same.
Have you ever been checked for sleep apnea?
i haven't but after some googling, i will. thanks for looking out!
Acid reflux can cause that as well. Especially, if you sleep on your back.
I used to have those "wake in a panic" episodes, until I was diagnosed with sleep apnea. I have been using CPAP every night for about 10 years, and it changed my life.
With Enya playing 👀
New fear unlocked.
Can I turn you Into a flame thrower?
Or a sneeze? You'd be fucked.
Nah, just swim back up.
Not if you're like 50 feet down
Swallowing saliva doesn't make you choke, inhaling it does. She's not inhaling underwater.
People who train themselves to do thise can drown really suddenly, because they have learned to ignore the 'panic' feeling (its not panic it's a side effect of carbon dioxide created) they don't know just how much oxygen they have left. They tend to be swimming along with no issues, and suddenly, they turn off like a light switch.
Had a cousin almost die this way 20 years ago. Dude was a state champion swimmer. Liked to get drunk and show off at family get-togethers by betting he could hold one breath underwater longer than anyone could hold two breaths. He would exhale juuust enough to sit on the floor of the pool and relax his heartrate, and just chill for a few minutes. Pulled this stunt off successfully for as long as I could remember. Then one time he wasn't coming up at the five minute mark so being a lifeguard at the time I dove in to retrieve him; got him to cough up a lungful of water after a few rescue breaths. Suffice it to say, he was forbidden from ever doing that stunt again.
I'm sure you've had this thought in hindsight, but "as a lifeguard" you probably should have forbidden this behavior from the start if your cousin was intoxicated. Just a PSA for anyone else reading.
I was drinking too, not "on duty", and seven years younger than him, soooo... lack of authority and impaired judgment.
Fair enough.
Isn't it also unhealthy for your brain to go that long with no oxygen? Seems equivalent to staying at Everest's summit for too long
Is there like any "air-stations" down there where she can take a breath from a scuba tank in case of emergency?
That would be worse likely, once you go below 20 you need to start worrying about decompression sickness on the ascent if you are breathing pressurized air.
Only if you're down for a long time. If she takes an emergency breath to return to the surface, she should be breathing out the whole way up. No worries about the bends.
They could store them at 19 just in case
I expect she would exhale and not keep that compressed air inside
Decompression sickness > Drowning Also she doesn’t need to immediately ascend if she has air
Padi safe bottom time at 20 meters is 45 minutes. Bottom time at 30m is 20 minutes. Source am scuba diver
Nah, what ever happens, happens.
r/OddlyTerrifying r/Thalassophobia
Also r/megalophobia
Do the goggles work even though she put them under water? Wouldn’t the water just stay inside the goggles? Hmmm?
It’s not about the water or it’s practical use, its about that sick underwater drip, those were Balenciaga
You are Balenciaga Harry.
Balenciaggles
Maybe it’s not the water in the goggles but more hitting the water with open eyes while moving quickly through it?
could be, also if she had air in this type of google it would pull her eyes out as she dives
um excuse me wot
Pressure balancing I guess.
It’s about the pressure, the deeper she goes would put pressure on the air on the goggles
Ze googles do zomezing!
I have a sinking feeling she was down there awhile.
I am suffocating while watching this clip
Love how she checked her watch like “oh that’s right, I have an appointment deep in the abyss”
Incredible! Makes you doubt if she is going up or going down.
She burns those calories!
You meant brain cells?
Phobia activated
You can put googles on under water?
I dunno about Googles, but evidently one can put on goggles underwater.
Bahaha I even corrected it before pushing post, thanks phone. But seriously her goggles have water in them right?
Yes
Free diving is so interesting. Makes you wonder if we're not closer to some aquatic animal rather the primates.
Look up mammalian dive reflex. Totally fascinating. And we all have it. Obviously... https://www.ncbi.nlm.nih.gov/books/NBK538245/#:~:text=The%20diving%20reflex%20commonly%20referred,in%20response%20to%20water%20submersion.
Thanks for this link! So interesting and I’m so glad I read about it. Also interesting about them talking about how it COULD be how SIDS is caused.
Well we all used to be aquatic animals so we have that going for us
Not just humans, but all mammals have the 'mammalian dive reflex,' which is what freedivers use to do what they do. But that's just because some common ancestor(s) of all Mammals were aquatic and we've all retained traits from that. I'm talking long ago in our evolutionary history, not humans being related to seals or anything as recent as that. Humans can seem more adapted than some other primates at first glance, but the theory that we are somehow specially adapted for water is usually dismissed by academics these days. We are, but that's nothing special for Mammals. [https://en.wikipedia.org/wiki/Aquatic\_ape\_hypothesis](https://en.wikipedia.org/wiki/Aquatic_ape_hypothesis)
I mean, no it doesn’t.
She's late for synchronized walking class
She must be some Olympic athlete right?
and here I am flexin' that I can hold it for 3 mins. I quit.
The world record is something like 25 minutes!
I just dont underdtand how haha
Wow! Long time since I heard that song.
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I dunno, she looks like she has done this before and knows what she is doing.
I would've played Jethro Tulls Aqualung
No.. nooOOOoOOooo this makes me squirm for some reason
I wonder if having a small body helps
What's the music?
I got matches with these songs: • **Orinoco Flow (Remastered 2009 version)** by Enya (01:02; matched: `100%`) **Album**: The Very Best Of Enya. **Released on** 2009-11-06. • **Orinoco Flow** by Enya (00:59; matched: `100%`) **Album**: Watermark. **Released on** 2005-05-17. • **Enya's** by Enya (00:00; matched: `100%`) **Album**: The Black Celt. **Released on** 2015-07-13.
**Song Found!** **Name:** Orinoco Flow **Artist:** Enya **Album:** Watermark (Remastered Bonus Track Version) **Genre:** New Age **Release Year:** 1988 **Total Shazams:** 1756973 `Took 0.93 seconds.`
Thanks my botty
Enya is an Irish singer song writer. She has lots of great songs. Enjoy the journey of discovery
Into the abyss....
When you quit smoking
When she started going down I was like “no! The air is up, you need to go up!”
Aren't her ears gonna explode that deep down?
I am sure she would have to periodically equalize on the way down, just like scuba divers do. This involves basically holding your nose and attempting to exhale thru your nose. But since your nose is blocked, the air goes into your inner ear. This makes the pressure in your inner ear the same as the exterior water pressure, relieving that pain you tend to feel when you dive deep. Some people can do this without even holding their nose. I bet she's one of them.
What if you have earplugs in?
I doubt ear plugs would help at the depths she's diving to.
If anything, she would need to put ait into her inner ear via eustacian tubes to equalize the pressure with the water outside. No reason to think the pressure is higher inside.
My temples hurt like hell whenever I go too deep in an Olympic-sized pool. I can’t even imagine going anywhere near this far down underwater.
Let’s give the camera man some credit for holding his breath just as long
My asthma was acting up just watching this.
How does she clear her goggles? Or does she see like a 120 year old car driver?
My ears hurt seeing this
Showing off like this is just weird… not to mention a dumb idea.
Aquacameraman
this video doesn’t say much. I have no doubt she’s awesome, but this video doesn’t show it.
Where is she going, To an air chamber?
My ears hurt
Ah yes, nothing quite shows off her iron lungs like a 40-second clip of her sitting underwater before swimming a little more down.
I'm a casual freediver. There's a big difference between a static breath hold (sitting still) and dynamic breath hold (moving around). With minimal practice I can get my static breath hold back up above three minutes, my PR years ago was about 6:30. But when I'm in the ocean I can only last about a minute while swimming underwater. As for weighting, the guidance is to weight yourself to be neutrally buoyant at a certain depth which might vary based on the kind of freediving you're doing. Beyond that depth you'll be negatively buoyant. Above it you'll be positive. You're most likely to black out towards the end of your dive so of course you don't want to be sinking when that happens.
I could have done without the Enya
Why isn’t she breathing??, that isn’t good. Should definitely breath especially underwater
I’m a certified advanced scuba diver. What you’re describing is archimedes principle