Molecules don't get "squeezed" to half their size. Its the distances between molecules that get shorter which we percieve as increased pressure and density. N2 molecules are always the same size.
@sandramargolis4 ай бұрын
im still trying to make sense of all that
@Kam-go3bcАй бұрын
he shouldve used the word "volume" not size
@leanneclarke99203 жыл бұрын
My brother had been diving for 30 years, last January he dived to 75 m, ran out of air, so had to ascend quickly, he died from the bends. Terrible
@WaterlineShorts3 жыл бұрын
I'm so sorry to hear that.
@hunterchapman44832 жыл бұрын
May he rest in peace hope ur family is ok
@hunterchapman44832 жыл бұрын
I hope ur doing ok😔
@leanneclarke99202 жыл бұрын
@@hunterchapman4483 it’s very hard
@mythical21112 жыл бұрын
Damn shows how dangrous it can be
@Dofri982 жыл бұрын
It was probably not your intention, but thanks for helping me study for my physiology exam
@WaterlineShorts2 жыл бұрын
Nope, not my intention at all but I hope it helped. 🤔
@rabiatmusa51252 жыл бұрын
It did👌
@g.s.72182 жыл бұрын
Same
@jbhamm02 Жыл бұрын
Thank you for this! I'm not a diver myself but am somewhat fascinated by the sport and always "kind of" knew what decompression sickness was but never fully understood the science behind it. Very informative.
@edgolembe956 Жыл бұрын
An excellent presentation of the basis for DCS. I am a physician certified in Undersea & Hyperbaric Medicine and have treated a number of "bends" cases. My compliments on this talk.
@bushyman4772 жыл бұрын
Suddenly, it makes sense. I never understood why Nitrogen content increases with higher atmospheres, but if you explain it like this, in that the existing nitrogen is simply compressed and allows more space for nitrogen, it makes more sense
@WaterlineShorts2 жыл бұрын
Brilliant. Im glad thats more clear for you. Happy diving.
@Bozzigmupp2 жыл бұрын
@@WaterlineShorts I did not understand how the content of nitrogen increases. I get that with more pressure the volume gets smaller but not the amount increases
@WaterlineShorts2 жыл бұрын
Think about it like separate bubbles or units of air. If you have a coke bottle and it’s filled with air that’s one bubble or 1 unit of air. If you take that bubble down to 10 meters the bubble has twice the pressure acting on it so it gets compressed to half the size. So the same amount of air only fills half the Coke bottle. That one bubble of air is half its original size. Same 1 unit just squeezed to half its original size. Now if you fill the Coke bottle back up at 10 meters you need another bubble to fill it up or 1 more unit of air. So if the Coke bottle is full of air at 10 metres it actually has the same amount of air in it for 2 Coke bottles at the surface or it has 2 units of air squeezed into the same space for 1 unit. If the Coke bottle is full of air at 10 meters and you take it up to the surface then assuming you have leave the lid off then the bubble of air in the bottle will double in size and the air would escape as it expands.
@Bozzigmupp2 жыл бұрын
@@WaterlineShorts Ah okay i understand, so this video is if you are breathing in oxygen under the water explicitly
@tanaasad22183 жыл бұрын
Thank you so much! This is by far the best explanation of DCS I have seen. I look forward to future videos. This video should be included in all new diver training.
@WaterlineShorts3 жыл бұрын
Thanks, that’s great to hear. Happy diving.
@justanother_mid Жыл бұрын
Thanks. Finally found a video that actually explained how are the bubbles created in body tissue in details.
@earthoceanaction11752 жыл бұрын
Thank you for this video! I was very clean and easy to understand everything. I'm doing my Divemaster's at the moment and I wanna get really into it all as I want to go for my Instructor's course straight after!
@Tyberius1 Жыл бұрын
this was very informative and answered all my questions. thanks!
@kornisonkiseli32482 жыл бұрын
I've been watching a lot of diving videos lately and wanted to understand why coming up from a dive can take so long. In that Dave not coming back documentary resurfacing took 12 hours. Your video is the best explanation on youtube of how body behaves under pressure. Animation of oxygen and nitrogen is really great 👌
@jakub.konipas11 ай бұрын
Same here, it is a bit shame they did not provide more technical explanation of DCS in the "Dave not coming back" video.
@allthingsbegin2 жыл бұрын
Wow, thank you for this educational video that explains something I've always wondered about.
@Seeedyyy2 жыл бұрын
One of the best diving-related videos I have ever seen. Thank you!
@WaterlineShorts2 жыл бұрын
Thanks for saying so. I really appreciate that.
@magellanicspaceclouds4 ай бұрын
Came here after watching Dave Not Coming Back. This explained a lot that wasn't clear from the movie. Thank you.
@kaitlynengelland27232 жыл бұрын
Thank you. I've asked my dad this question and he makes me so confused on how it works. I'm in welding right now and about to get a certified diver to do underwater welding. Thank you!!
@WaterlineShorts2 жыл бұрын
Cool. I’ve often thought about commercial diving but honestly I’m just about ok doing DIY. Sounds like you have a great base to work from. Best of luck
@onmymind5132 Жыл бұрын
I’ve dove once. Did the padi beginners course. We went down 50ft and did safety stops on the way up.
@clarissaayres2060 Жыл бұрын
Helpful for my physio subject!! Thank you❤
@Fidizzy Жыл бұрын
Extremely well put together. Hats off 👏 just a question at 12:35 you state they need to breathe 100% oxygen. Is there a risk of oxygen toxic accidents?
@leanneclarke99203 жыл бұрын
My brother dived to 75m he came up to fast due to running out of air. He died 11 months ago of decompression sickness, he had been diving for 30 years
@Konanan2 жыл бұрын
Wow I'm so sorry for your loss. Do you mind me asking why he ran out of air?
@leanneclarke99202 жыл бұрын
@@Konanan I don’t mind you asking at all. He was diving on a wreck, and he and the 2 other divers, were commissioned to retrieve the bell from the deck, my brother did most of the physical exertion, and used far more air than he normally would. This resulted in him running out of air, apparently he was able to share air with one of the other divers, which he began doing, but then something happened, we don’t know if he panicked, or had diver narcosis, but he appeared confused, and he wasn’t letting air out of his buoyancy vest, and he began ascending very fast, and the regulator was ripped out of his mouth, the other diver who he was sharing air with, tried to chase him, but was unable to catch him.
@alicewaweru53222 жыл бұрын
Leanne, I am sorry for your loss.
@leanneclarke99202 жыл бұрын
Thank you Alice,so awful
@social-club-fuengirola2 жыл бұрын
Sorry for your loss
@rippleguys2 жыл бұрын
Great explanation. The 3D graphics of the in/out gassing were great. Did you have them specifically created for your video?
@WaterlineShorts2 жыл бұрын
Yes. I have this explanation quite often so I had the graphics made.
@runthomas Жыл бұрын
wow....just wow...thanks mate.
@rottsandspots Жыл бұрын
Really fantastic channel - so glad I found it 😊 I have a question I hope no-one takes as morbid or offensive. If the Titan had been found on the ocean floor, their last emergency Oxygen was via scuba tanks. Would they have needed to decompress going back up, given the submersible was at atmospheric pressure? I still think if possible decompression stops should have been used, given the lung tissue and lung cavity would have been at increased pressure from the compressed air, even if other body parts were essentially at 1 atmosphere, so would not have been taking in more nitrogen than usual. Or, given the nitrogen was compressed on entering the lungs, could it have forced its way into normal tissue as it started to expand in the bloodstream? Sorry to be morbid. Rest In Peace to all five involved in that tragic event.
@cleopatraoatcake7364 Жыл бұрын
Great video! Makes me appreciate again how our bodies keep us going every day.
@soulsparkmusic3 жыл бұрын
Great video! Thank you!
@WaterlineShorts3 жыл бұрын
Thanks for watching.
@KhalilHotait Жыл бұрын
Thank you for helping me finish my homework
@rachitshukla302 жыл бұрын
Just a correction the nitrogen molecules dont get compressed but the gap between 2 nitrogen molecules get compressed. Please correct me if I'm wrong
@WaterlineShorts2 жыл бұрын
Absolutely right. Thanks, I really appreciate technical details being correct. Thanks for pointing that out.
@levongabrielian64302 жыл бұрын
And this is not the only mistake in this presentation.
@coleenlyons8815 Жыл бұрын
Your link for Open Water Course states it’s deleted or suspended, where can I access this free course? Thanks so much
@rollogic2988Ай бұрын
What if your tank is full of 100% pure oxygen? Would you still get the Bends? Is pure O2 even an option?
@ZacharyBetz Жыл бұрын
Excellent explanation. Thank you
@commongravekeeper96702 жыл бұрын
This is so interesting, thank you for making videos on it 💚
@WaterlineShorts2 жыл бұрын
Glad you found it interesting.
@popeyesailorman911 Жыл бұрын
Very Simple and Informative Video!! ✌✌
@alexckelly1 Жыл бұрын
I hope this isn't a dumb question, but can't we just put less nitrogen in the tanks?
@dalebrownhill2540 Жыл бұрын
How do youdiscuss decompression sicknesses without discussing accent rate issues??? Isnt that the major factor in getting bent
@heroknaderi6 ай бұрын
Very informative
@tomp9628 Жыл бұрын
Thank U for the great tips 😁
@cruz7072 жыл бұрын
Hypothetically, could you treat type one DCS with an ice bath because cold decreases volume. I would think the cold would shrink the bubbles down
@WaterlineShorts2 жыл бұрын
The logic is sound but the because temp does affect volume but not to the degree that you need it to. Pressure, as in a pressure chamber, is the only way to go. Now, I have to say I dont know exactly what the mathematical relationship is but its the equivalent of saying "can I push a bicycle with a car in one direction while a train pushes in the other direction. Where a car is like temperature and the train is like pressure." The car would of course have an impact but its no match for a train by a long yard.
@matthijs31343 жыл бұрын
Great video! Very well explained!
@WaterlineShorts3 жыл бұрын
Awesome. Thanks for watching.
@conantheagrarian Жыл бұрын
now this is a good video thank you very good
@JohnLong-t5q Жыл бұрын
So how slow do I have to come up. Theirs so many deferent numbers
@gjduppessis6507 ай бұрын
Is it possible to remove nitorgen from the O2 we breath in
@westonhuffman7908 Жыл бұрын
Well, I was trying to see if getting decompression sickness makes it where you can't skate.
@patrickgelinas52419 ай бұрын
Very well explained!
@filip31712 жыл бұрын
How significant is the reduced possibility of getting DCS by diving with Nitrox? Thanks for the video, helped me a lot.
@WaterlineShorts2 жыл бұрын
The answer is not straight forward. Ill do my best. Nitrox is there to reduce the amount of Nitrogen. What you are doing is increasing the proportion of Oxygen. So yes the risk of DCS is reduced if you compare one dive profile on air with the same dive profile on Nitrox. For example: a 45 minute dive to 20 meters. This dive is on the limit of the recreational dive tables. At 46 minutes you need to start doing decompression stops when on air. But on 32% Nitrox this jumps to 75 minutes. So if you dive to the limit of either air or Nitrox, you are in the same territory. But I would say that by 75 minutes at 20 meters, most people will have gotten cold, run out of air or just gotten bored so theyre out of the water. That makes diving Nitrox, safer, relatively. Hope that helps.
@LTDANMAN442 жыл бұрын
this video is easy to understand thank you
@josueamparo16779 ай бұрын
Well, what if instead of compressed air you replace the tanks it with 100% oxygen. would that help with D.C.S or no ?
@sashimi8798 ай бұрын
No
@RealEstateOttawa2 ай бұрын
Can someone explain in detail why/how 100% oxygen flushes out the Nitrogen. The physics involved.
@viramonica82162 жыл бұрын
big thanks for you
@MsYellowSkies Жыл бұрын
Thank you for the clear help with my organismal biology III class. I really appreciate you pacing the speed of your talking. so much better than professors 3000 miles/hr talking. lol
@niku102 жыл бұрын
Question, lets say if someone dive with a pipe from the boat instead of oxygen tank. Will he still get bends if ascend too quick?
@WaterlineShorts Жыл бұрын
Yes. The nitrogen is compressed as it goes down to their depth. But they would not take an oxygen tank. It would be air ora gas mix, not 100% oxygen
@avigindratt7608 Жыл бұрын
Man I ain’t tryna deal with this
@witchypeoniflorallungs3044 Жыл бұрын
11:03 from bender to bends
@Wormhole-Bar-Concert-Venue Жыл бұрын
waterline website wont load
@emilyscloset26488 ай бұрын
Mark Powell likely would disagree with the commentary on deep safety stops
@mythical21112 жыл бұрын
So will breathing heliox tottaly stop the bends or not
@WaterlineShorts2 жыл бұрын
No it won't stop the bends. Helium is still dissolved into the body tissues the same way nitrogen is. But it doesn't give the same narcotic effect that nitrogen does in nitrogen narcosis. That's why it's used because it allows divers to go deeper avoiding nitrogen narcosis. But they are still exposed to decompression sickness.
@mythical21112 жыл бұрын
@@WaterlineShorts oo same with hydrogen in hydrox im geussing Im intrested in diving so was reaserching diffrent gas mixes and such
@WaterlineShorts2 жыл бұрын
Same thing. They are 'inert gases'. The body doesn't metabolise them like it does oxygen so they get stored. But from a practical point of view, most recreational diving will use normal air. Then when you get going you will start to use nitrox which is an increase in oxygen. Only if you and when you get into some serious technical diving will you start to mix helium and I would probably say you would never mix hydrogen because it's only really going to benefit at such deep depths that barely no person goes. So if you intend to be the most intense deep Diver in the world or get into commercial saturation diving then you will probably never mix hydrogen. Helium possibly but again it's going for done serious technical diving on very deep dives.
@ebanisteriahernandez3 жыл бұрын
GoPro Super Suit Protective Housing
@WaterlineShorts3 жыл бұрын
That's random
@troytellsit4933 жыл бұрын
Huh?
@johnrainsman66502 жыл бұрын
I need some advice. It's kind of embarrassing.
@WaterlineShorts2 жыл бұрын
Ok. Would you rather email me on paulpnel@gmail.com
@johnrainsman66502 жыл бұрын
@@WaterlineShorts No thanks. John Rainsman is just an alias (I don't use my real name online). I meant it could be embarassing for anyone to _reply_ to
@anthonydeluca45652 жыл бұрын
Why is there nitrogen in the tank? Why not just oxygen?
@228_anakagungngurahwibisan62 жыл бұрын
Too much oxygen can lead to oxygen toxicity
@Yggdrasil42 Жыл бұрын
Pure oxygen is toxic to humans at the pressure you'd get below 6m (18ft). So you couldn't go deep at all. Divers do use pure oxygen to speed up decompression (because it contains no nitrogen) when returning to the surface, but only above the 6m depth.
@abdelghaniboudribila2 жыл бұрын
thank you sir
@WaterlineShorts2 жыл бұрын
Thanks for watching
@thenbenagcz39312 жыл бұрын
So I I fill my diving tank with 100% o2 I don't get decompression sickness??
@WaterlineShorts2 жыл бұрын
Yes but then you dies from Oxygen Toxicity.
@Yggdrasil42 Жыл бұрын
Pure oxygen becomes toxic below about 6m (20ft), so you couldn't go deep at all.
@Hazelnutcup1 Жыл бұрын
Wow, very thorough and easy to digest. Thanks for the video! I wish I watched this video first instead of the other weird one with screaming people and incorrect math lol.
@sasca8542 жыл бұрын
Black hole @ 3:19: "Hold my singularity"
@Urdalymemes11 ай бұрын
Aka the bends
@AffxctFPS Жыл бұрын
A part of this video basically confirmed my guess. For us to know this was a thing, other men had to die to give us the information needed to develop the basis of this concept. Damn.
@killjoy17362 жыл бұрын
The only thing my lungs are absorbing is THC ..I think they are broken
@Leon-fo9mj2 жыл бұрын
Great video, now I have a kinda strange hypothetical question..How would one survive if while diving you suddenly got sick to the stomach and had toQ vomit.? I mean I'm sure to some it sounds like a dumbass question, but when I think about it I can only imagine the fear/anxiety you would get knowing your to deep to race to the surface and your about to vomit so you would obviously have to remove your reg from your mouth while puking and try not to dry heave or gasp for air and accidentally inhale water and drown, SO....... real life situation WHAT DO YOU DO.?!?!?
@WaterlineShorts2 жыл бұрын
LOL: Its actually very common. Seasickness is a close companion to many people. I subsides quite quickly once youre under water but often you just have to purge. The simplest explanation is that you throw up into your regulator. Its like water. You then purge it using the purge button on the front of your regulator and then breath in slowly. Yes you need to think it through a little but once you have some practice at clearing your regulator on your dive course then it all makes sense and is easy to do. Heres a video about clearing your reg. kzbin.info/www/bejne/mqOWaZ2qmaqIadk
@Yggdrasil42 Жыл бұрын
It's happened to me due to being sea sick on the surface. I had to vomit after descending. You can just throw up through the regulator you're breathing through. It'll pass through into the water. Less scary than people imagine.
@engchoontan84836 ай бұрын
today date-time, when glycolic is released from blood-stream, the explaination of symptoms should be referenced by doctors to diving and bends and nitrogen and blood. eat drink things that encourage excreta-excretion and irritating burps-farts
@walterbrownstone80172 жыл бұрын
I don't understand this sickness exactly. Is the problem caused by the body absorbing too much gases at depth? There is nothing that can be designed that maintains stable normal blood levels regardless of depth? Really? I believe it's doable.
@WaterlineShorts2 жыл бұрын
The gas is absorbed into all body tissue, not just the blood. Submarines maintain a stable sea level atmospheric pressure so that submariners are not affected by pressure at depth. But as soon as you go in the water and have water pressure acting Inn your body then you're body starts absorbing gas until three pressure off gas in your body is equal too the pressure of your depth.
@walterbrownstone80172 жыл бұрын
@@WaterlineShorts example. At the surface is when you start an inert gas mix. You reduce the total possible amount of nitrogen in your breathing system to less than a toxic dose before the drive even starts.
@WaterlineShorts2 жыл бұрын
You could do that. You reduce it to zero and breath 100% oxygen. But at 6 meters (18 feet) oxygen is toxic and will kill you. So you have to keep an inert gas in the mix. In fact the deeper you go the more inert gas you put in and reduce the oxygen. Not for recreational diving but certainly for commercial diving. Your body is filled with inert gas. About 3% in fact. There is no avoiding this when diving. Just managing it.
@WaterlineShorts2 жыл бұрын
Just keep in mind, your body doesn't mind absorbing or releasing the gas it's just a matter of going up slowly so the gas is released slowly.
@walterbrownstone80172 жыл бұрын
@@WaterlineShorts no use an actively mixed breathing apparatus.
@midhunlaljs12942 жыл бұрын
thanks for the video
@devongee17762 жыл бұрын
It is dangerous to put yourself somewhere you don't belong. We are part of nature, at its mercy. . .
@jerometruitt2731 Жыл бұрын
So you basically turn into fizzy soda pop
@levongabrielian64302 жыл бұрын
It's good that you present it, talk about symptoms or recommendations, but it will be better if you leave the explanations of mechanisms to specialists who know physiology, biochemistry, physics, etc.
@WaterlineShorts2 жыл бұрын
How accessible is that for the average diver.
@levongabrielian64302 жыл бұрын
Of course you are doing it out of good intentions and it's appreciated, but out of that same good intentions sometimes come a little confusing or misleading details (technical analogies) which can be improved with prior consultations with specialists.
@kornisonkiseli32482 жыл бұрын
It's a youtube video, not a lecture. Specialists, lol.
@jbhamm02 Жыл бұрын
I bet you're fun at parties. Also, what are you rambling about anyway? The specifics of the physiological effects is exactly why I came to this video. Unless he said something that was inaccurate, perhaps you should learn to keep your unwanted opinion to yourself and let others enjoy the content for what it is.
@levongabrielian6430 Жыл бұрын
@@jbhamm02 it looks like you have been trained to not think and just do what you are told. Good luck.
@nihalsinghrajput208511 ай бұрын
India
@allylondon95792 жыл бұрын
I didn't understand a thing! 😂
@WaterlineShorts2 жыл бұрын
Ha ha. It will become clearer over time.
@levongabrielian64302 жыл бұрын
It's not your fault, the explanation of the mechanism is not right. 😉😀
@levongabrielian64302 жыл бұрын
Analogy with the balloon inside a bottle is not so relevant in regards of volume changes, and plus body is an alive physiological system with it's complex mechanism, not like dead baloon and bottle plus pressure. So...think about it!?
@WaterlineShorts2 жыл бұрын
I have thought about it. I think quite a lot about how to help people visualise so it's understood better. Most people don't pay attention to the specialists so it's up to people like me to make it slightly more accessible.
@jbhamm02 Жыл бұрын
Oh my god here you are again. If it were up to you, teaching people how things work would start at a post-collegiate level and nobody would understand anything. Just shut up already lmao.
@tekksavvy2242Ай бұрын
!
@DJRickValeOfficial Жыл бұрын
Anyone here watching this video after watching Documentary of 'Dave Shaw not Coming back' (a Cave Diver/Pilot who wants to retrieve the body of south african cave diver who passed away under the Bushman's Hole)
@blaiswilliam11 ай бұрын
Come on… reducing an awesome piece of tech to a phone stand?
@mikemcknight1295 Жыл бұрын
super expanation
@BilboBaggins10 Жыл бұрын
Where do we go from here? The words are coming out all weird where are you now when I need you
@EYEBALLKLOTT Жыл бұрын
I'm sure glad nobody does this to anybody on purpose. It can be so bad the diver who can't fix it might commit bloody murder against their wishes and want to have died before every lifting a finger. In oxygen out of water, I think the drive from Seattle to Californias floor could destroy the person returning. It's probably confused as madnesses and suicide or murder from the incredibly deep irritation that can't be stopped, and the a-liens from the last jackass to beg to be under the name. No. It's a bad deal. No violence gets in. We don't owe iheart or chev a damn cent. They can pay it off. They wanted it. They shopped, we're just bystanders watching everything.