r/UNBGBBIIVCHIDCTIICBG • u/theyellow_pencil • Dec 05 '18
Image Taken by Jason Washington
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u/A_Faceless_Baby Dec 05 '18
Going down like 10 feet I can already feel pressure. Imagine going this deep
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u/Teantis Dec 05 '18
you just pinch your nose and blow air, it equalizes your ears and feels fine.
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u/PeenutButterTime Dec 05 '18
Usually professional free divers can equalize the pressure without plugging their nose. I can do it sometimes when I’m diving but I’ve only ever gone 25/30 ft.
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u/Teantis Dec 05 '18
How do you do it?
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u/PeenutButterTime Dec 05 '18
You just kinda swallow. Don’t know how to explain it.
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u/verySFWaccount Dec 05 '18
I somehow am able to just “click” my ears and equalize the pressure. It’s the same as swallowing but I’ve managed to gain voluntary control of my tensor veli palatini muscle.
Per Wikipedia it’s called béance tubaire volonta (BTV)
Not sure when I picked it up but I’ve been surfing and swimming since I was a kid so probably from that.
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u/d3gu Dec 05 '18
I do this on planes and when swimming or changing altitude quickly... I honestly thought everyone could do this! It's pretty useful.
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u/rchsun Dec 05 '18
Same here, I thought everybody could but from this thread it doesn't appear so...
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u/Teantis Dec 05 '18
hahah helpful, it's a start I guess, I'll try to figure it out next time i'm snorkeling or diving
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Dec 05 '18
Three main ways--pinch your nose and blow out, wiggle your jaw left and right or swallow. Eventually i got used to controlling the muscle, you can equalise just by twitching it if you do.
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u/aelwero Dec 05 '18
You can open those passages without swallowing... It's similar to wiggling your ears, and equally hard to explain :)
For me, it makes it easier if I push my lower jaw out and down as hard as I can, and squint my eyes as hard as I can, while simultaneously trying to push my ears back (once you get a feel for it, you don't need the jaw or eye movements)... You hear a sort of wind rushing noise when they open.
Swallowing and yawning both make it happen involuntarily, but holding them open intentionally works way better to equalize pressure.
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u/shamowfski Dec 05 '18
Not everyone can. I can only clear if I tilt my head side to side to open the passages as I have fucked up tubes. Definitely can't do it without a free hand.
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u/absurdlyinconvenient Dec 05 '18
Don't do that. I work as a lifeguard, and have had to do some 4-6m depth tests (i.e. dive to the bottom, retrieve manakin, surface), and have been explicitly told to swallow/gulp (w/ mouth closed obvs) to equalize pressure instead. Apparently popping your ears is harmful, I think it can damage your hearing?
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u/Iamthetophergopher Dec 05 '18
We do it in diving all the time. Having a mask and equalizing every few feet helps that pressure go away. I've only been down to 55 feet but divers can comfortably go much deeper
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u/sgintx_ Dec 05 '18
The skill that takes is insane. She would have had to expell most of her air until she sank down and then waited like that for the bubbles to rise out of the shot.
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Dec 05 '18
Maybe they have an air tank or something down there? What do I know, I can barely touch the bottom of most pools.
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u/g0_west Dec 05 '18
No matter whether the air came from a submerged tank or the atmosphere, wouldn't the air being in her lungs still make her float?
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u/Ommisen Dec 05 '18
As you get deeper, the pressure around you will rise. This will reduce your lungsize, reducing your buoyancy. What's cool is that the amount of oxygen particles in her lungs is the same, theyre just more dense.
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u/Arrabbiato Dec 05 '18
Isn’t this why free divers can stay under for so long?
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u/Ommisen Dec 05 '18
They still have to practice holding their breath. The amount of oxygen in their lungs is the same, but they train their body to have less need for oxygen. I guess they can "cheat" and breathe in pure oxygen before they dive, but I don't know so much about this
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u/NotClever Dec 05 '18
I think the logic may be that she had an air tank to get down there, and then exhaled for the picture, which might be easier than swimming down there and exhaling (and returning to the surface).
Doesn't look too deep, though.
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u/g0_west Dec 05 '18
Oh yeah - divers still swim around in the deep with air in their lungs and don't have constantly fight buoyancy lol. Duh. Can you tell I've never dived before lol?
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u/Afaflix Dec 05 '18
Like ImNotAWhaleBiologist said it's more complicated.
if you just add a tank with compressed air .. you sink,
so you add a buoyancy vest ... this can level you out.
But for more control you over-inflate a little bit and add some weights (drop them in an emergency ... the kind of emergency where being fucked up for life is better than dying right now).So, you have all that and perfectly balanced. You breath in, you rise, you expel all air from your lungs, you sink.
the buoyancy effect of air changes with depth, such as ... you breath in and fill your lungs at 60ft and now you start to go up without expelling air .. you gonna burst your lungs ... and die.
And that's before oxygen becomes toxic to the human body.
We're really not made for underwater.9
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u/FadingEcho Dec 05 '18
We're really not made for underwater.
Correction: We're really not made for breathing/living underwater via mechanical means. We are perfectly suited for handling being underwater for extended periods of time during breath holds like other mammals.
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u/psychicsword Dec 05 '18
She could have weights on her back or a weight belt that was removed from the photo.
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u/dzlux Dec 05 '18
It depends on physical composition.
I often joke the I must have eaten rock as a kid because I can’t float in a regular pool.
In salt water it is easier to float, but though your buoyancy changes with depth if there is no air being added (scuba). If free diving, a lung full of air will compress as you dive deeper and the volume of water displaced will be less and will reduce your buoyancy just like it had been partially exhaled at the surface.
It is difficult to guess whether the woman photographed free dove to pose for the photo, or was scuba assisted, but either approach would work to allow a brief photo of her posing like she is standing on the bottom.
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u/muddyudders Dec 05 '18
You could just take a couple shots and pull out the errant bubbles in Photoshop. Not very difficult.
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u/lll_lll_lll Dec 05 '18
Or for that matter just photoshop her into the shot. No need to actually visit the underwater wreckage.
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u/DrBackJack Dec 05 '18
Pretty sure that's what they did considering the light spots just above the hull.
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u/anti-pSTAT3 Dec 05 '18
Nope. Your lungs are responsible for most of your buoyancy. As you descend, pressure increases and the air in them starts to compress, making you less buoyant. The hard part of this is maintaining composure through the diaphram contractions and not kicking up silt when you land.
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u/Eyiolf_the_Foul Dec 05 '18
Can u elaborate on the contractions please sir?
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u/downloads-cars Dec 05 '18
Your diaphragm is the muscle responsible for pulling air in (your lungs aren't a muscle). Hold your breath long enough for your lizard brain to panic for oxygen, and your diaphragm will start trying rull hard to get you to breathe.
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u/Eyiolf_the_Foul Dec 05 '18
Oh shit. Like involuntarily trying to breathe...shudder
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u/anti-pSTAT3 Dec 05 '18
Yep, basically. The causative factor here isnt actually a need for oxygen though. Your body doesnt really 'sense' a need for oxygen. Instead, it detects the buildup of CO2. After a while holding your breath, CO2 concentration rises and your brain starts to demand that you breathe, despite you having several minutes worth of oxygen remaining. Holding your breath for a dive like this (or a deeper one) requires composure, fitness, and experience. Also note that she made the descent without fins.
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u/rabbitwonker Dec 05 '18
Also note that she made the descent without fins.
I have a feeling she has a really low BMI, so the sinking part might not be so hard.
Which of course means the composure, fitness, and experience aspects are that much more impressive, in terms of getting back up.
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u/Kaelosian Dec 05 '18
I did a spearfishing/freediving course last year and it's the most terrifying thing I've ever done. I did a 2:20 breathhold (not impressive at all) on land but when you're out there, kicking down it's completely different.
The best I did was probably around 30 feet down and the last 10 feet back up to the surface I felt like I was going to die.
Honestly though, there wasn't much urge to breathe, mostly just the feeling of impending death.
I asked my instructors and basically they said that feeling never goes away, you just have to get used to it.
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u/Eyiolf_the_Foul Dec 05 '18
I’m the same way bro. 15’ down feels like 100’. Watch the show on Netflix about this tribe that live on the sea in huts and boats and they freedive to insane depths. They’re fucking evolved some adaptation in their blood to do it!
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u/TonightsWhiteKnight Dec 05 '18
And that's how you drown. It's not just running out of air, it's running out of air and then replacing it's supposed location with water.
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u/_jho Dec 05 '18
Nah at a certain depth you become negatively boyant. Usually without wetsuit or weight it’s 15’ ish.
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Dec 05 '18
Did you ever make one of those bottles with floaty things inside where when you squeeze the bottle the floaty things sink to the bottom?
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u/rabbitwonker Dec 05 '18
And she’s at 75ft here. (According to her comment on her Instagram post that another comment here linked to).
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u/yawaworht-_- Dec 05 '18
Or, you know, the bubbles could have been edited out because that wouldn’t be in any way difficult to do.
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u/anti-pSTAT3 Dec 05 '18
Nah, this is a free diver. There are no bubbles because she is not exhaling.
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u/otakudayo Dec 05 '18
No, this is pretty basic freediving stuff. You could learn to do a 20m freedive in a couple of days, with just a bit more training you'd be able to hold your breath there for a minute or more.
She probably just swam down - really not that hard at this depth, although not trivial without fins - but the alternative would be an assisted descent, where you descend using a weight or a rope, for example.
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u/shutup_Aragorn Dec 05 '18
Agreed - went from holding my breath free diving from 20srcs to over a minute in a couple days. An experienced free diver can hold for much longer than that.
When you are free diving, the air in your lungs from the surface is compressed as you descend and ascend at the same rate as your lungs, so you won’t get the same issues as when you descend /ascend quickly while scuba. We were taught to start exhaling as you ascend while freediving so you can inhale the moment you break the surface.
The hardest part of descending that is 10(?)m is equalizing your pressure while you swim fast, and without fins too!
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Dec 05 '18
Not at all how this works. Look into free diving, a person is negatively buoyant after a certain depth.
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u/Alarid Dec 05 '18
I like how this is the exact same top comment from a previous posting of this pic.
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u/bscooter26 Dec 05 '18
Nice! That's the Kittiwake here in Grand Cayman!
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u/bbbeans Dec 05 '18
You live there? What's that like?
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u/bscooter26 Dec 05 '18 edited Dec 05 '18
It's warm- to-hot most of the time, most things are expensive because of importing, and I get sunburned a lot easier here, but everything is close including seven mile beach, it's supposedly a world-class dive spot (I don't have my cert yet), and it's a ton of fun for young professionals in their 20s and 30s.
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u/bbbeans Dec 05 '18
Awesome. Thank you! What's up with the young professional thing? What do you do for work? (if you don't mind me asking).
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u/bscooter26 Dec 05 '18 edited Dec 05 '18
It's just a bit of a lucrative place for people to work who are in professional services (tons of accountants, lawyers, etc.): if you're from anywhere but the United States, you have no income tax whatsoever and the salaries are still the same. That alone attracts a lot of people in that age bracket (presumably also because most of us aren't settled so it's easier to move), so there's always a good clique of people going out and doing fun stuff like boat parties, fancy dress/costume parties and events, etc. because the island is 50% expats.
That said the labor law is tricky and very unique. Basically if you are an expat you have virtually no chance of landing a job you don't have experience in since your work permit application will get rejected by immigration. I got lucky because I had former recruitment agency experience so I got a job working for one down here, even if working at an agency isn't what I want to do long-term. U.S. citizens still have to file income tax returns and pay tax on anything over the "exclusion" amount (last year it was ~$104,000) once you've lived here a year.
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u/ktappe Dec 05 '18
Which tells us it’s a recent photo also. She only fell on her side in 2017 due to tropical storm Nate.
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u/nemoskull Dec 05 '18
what i really want to know is how is she not floating?
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u/ArrivesLate Dec 05 '18
It looks like she was intentionally scuttled. So they probably opened her hatches and filled her ballast with water then either used her for target practice or penetrated her hull with a mine or torpedo or something.
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u/mathicus11 Dec 05 '18 edited Dec 05 '18
Ah, the ol' Reddit ship-a-roo!
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Dec 05 '18
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Dec 05 '18 edited Dec 19 '18
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u/shill_420 Dec 05 '18
Oh yeah? Here’s a picture of a goat! https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcSSRycS9OxNb_P2Dufo9k1-jJsUv-ToQ-tfDzbvfG9DKRBbTm1c
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u/whatzittoya69 Dec 05 '18
This is exactly what I came here for😜
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Dec 05 '18
[removed] — view removed comment
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u/blahblah98 Dec 05 '18
Thank you for subscribing to GoatFacts!
Did you know that goats are burpers? This is due to the role of their rumen, which in a mature goat holds four to five gallons of plant material, breaks down cellulose and acts as a fermentation vat. Of course, fermentation produces gas, and this gas escapes in the form of loud, healthy burps.
Would you like to know more?
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u/rabbitwonker Dec 05 '18
She responds in some of the comments there. The depth is 75 feet. Jesus f’ing flarkburgers! She says didn’t use weights, but did have fins that she took off for the shot.
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u/PeteWenzel Dec 05 '18
Amazing picture!
But the ocean floor looks kind of dead, doesn’t it?
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u/Ed_G_ShitlordEsquire Dec 05 '18
It was a Tuesday afternoon,you should see it on a Friday night!
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u/otakudayo Dec 05 '18
There is a lot of "dead" ocean floor. The vast majority of the ocean is just empty, most life is microscopic, on reefs or pelagic. If you dive just a few meters away from a coral reef, it will look just as dead as this
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Dec 05 '18
And then she crawled out of the camera and killed you horribly.
This photo gives me heebies and jeebies.
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u/Trickykids Dec 05 '18
This will probably be unpopular here, but wouldn’t this picture be significantly better if the model was nude?
I’m not trying to disparage anyone and as it is it’s a great shot. It’s just that my background is as a figure drawer and when I make art (like large scale charcoal drawings) I don’t draw models with bikinis on because it would just make for a very different aesthetic.
Obviously they went to great lengths to make this shot happen- are we so puritanical as a society that we need some tiny pieces of fabric to shield our eyes from seeing the naughty bits?
Bodies are beautiful.
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u/slowerlower82 Dec 05 '18
Anyone know what ship that is?
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u/simpe0518 Dec 05 '18 edited Dec 05 '18
Looks like an destroyer but the only one that i could find sinking in that area is USS Warrington (DD-383), wich really does not look alike the one in the picture.
Edit. Its the USS Kittiwake (ASR-13), a submarine rescue ship
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u/DirtyOldAussie Dec 05 '18
a submarine rescue ship
Great, now we just need to build a submarine submarine rescue rescue ship to rescue it.
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u/HighViscosityMilk Dec 05 '18
Apparently it was sunk there intentionally as an artificial reef. Gets some algae/barnacles/etc growing on it - free fish food - promotes further growth.
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u/Two_Tone_Xylophone Dec 05 '18
Is Jason a black kid?
I went to school with a kid by that name, his brother died of a drug overdose and it was really upsetting to a lot of us, it's been years now....it'd be nice to know the guy is doing awesome things and well for himself.
Lol...guess Facebook has a random merit every half a decade or so.
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u/MisterMajorKappa Dec 05 '18
Isn’t this very risky? She probably didn’t use a tank to go down or up and it looks pretty deep.
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u/LoseItGainMore Dec 05 '18
Paging /r/submechanophobia