I love how people complain about the pausing. If you want to see the video they're watching without their input why are you watching the video here? The whole point is to get Gus & Woodys input
I work as a nurse in an ICU and it’s cool to listen to the science behind diving because there are a lot of the same concepts applied to when patients are on ventilators. We actually use Heliox on babies who have croup to help get oxygen passed their swollen throat. Just intriguing. Thanks guys!
This comment is super old, but the anesthesiologist that did the cave rescue in Thailand said the same exact thing! He even built his own rebreather (not recommended). Funny how professions can overlap.
Never stop pausing. The discussion and knowledge is the entire reason I watch. When Woody says, "We don't need to go further into that in this video", I think to myself, "Well what video will that be in, I have more questions". Keep it up!
Well not to mention it's the only way to make your video legal as far as fair use goes. The more you pause the less of an argument anyone has that your vid isn't fair use.
I can’t go a single day without watching your discussions. I am a newbie diver with a little over 40 dives at the moment and since I can’t go diving as much as I want to (money is tight at the moment, y’all) I feel like I’m still being refreshed and I’m learning so many things from you guys, so thank you, and keep it up.
I think the word react doesn't do your video's justice. Maybe 'discuss' 'analyse' or some similar term is more fitting. You guys aren't just reacting, you're adding value, first hand knowledge and information, personality, fun, and more. You guys are awesome, keep it up! I watch every video and im not even a diver! (Yet)
Fun as always! Just to clarify for non-divers, the 'tissue compartments' the guys are talking about that absorb nitrogen are not like the cuts of beef on poster in the butchers' shop. Neither are they spaces in the body like the lungs, gut or ears. They are actually just a term for theoretical types of tissue, like muscle, joints, bones or fat deposits that will absorb and release gas at different rates depending on what they are made of and how well they are supplied with blood. The nitrogen goes into the tissues in solution in body fluids. When you come up and the pressure decreases, we want to allow it to come out again still fully in solution, stay in solution in the blood and then evaporate out when the blood goes through the lungs. If the pressure drops too fast, it comes out of solution forming bubbles and these can both damage your tissues and form blood clots. The term 'the bends' comes from early divers who could suffer pain in the joints from nitrogen bubble damage, making them want to roll up into a ball. Not nice! I resent the statement that a heart rate of 45 means you are in a coma. My watch says mine is currently 39 and I'm sitting here typing, or is this a dream? Nurse! Nurse!! Why is no one answering? Never been saturation diving, my dive watch doesn't have a helium escape valve, so just a keyboard warrior on this, but why would your lungs be squeezed to the size of a peanut? At 534 metres, 54Bar of pressure, you are still breathing gas at 54Bar so your lungs should be quite normal, just as they are at 40m and 5Bar when recreational scuba diving. Also 1% O2 then becomes a partial pressure of about 0.5Bar, so about double what you would be getting at the surface from each breath. BTW, my deepest dive is only 38 metres, and it felt just like 10 metres, only darker. And I wasn't narked, or at least I don't think so.........
Super old comment but no one responded so I figured I would. They actually made a bit of an error there. You're correct that the pressure would be balanced and wouldn't squeeze your lungs. The real reason is that the gas itself just becomes too dense. The strength of your diaphragm and ribcage is only so much. The resistance to flowing the gas in and out simply increases as it gets denser which is another benefit of helium (or hydrogen in this case) as its less dense. This is also one of the biggest impediments to liquid breathing they mentioned at the end. Your body just isn't capable of exchanging the fluid in sufficient volumes. But for smaller animals like mice, this is less of an issue. As such, that scene in the Abyss where they demonstrate liquid breathing using a mouse basically drowning in oxygenated fluid, was actually real.
That answers almost all of my questions, but if you happen to know, could you tell me the rates at which each type of tissue absorbs and releases the solution and subsequently which decompression stops are for which type of tissues?
@@Teenangst16 It's complex, and the 16 'compartments' are divorced from specific anatomy. If you want a more technical explanation there is one which includes the absorption rates here: aquatec.files.wordpress.com/2011/03/decompression-theory.pdf But this is not of immediate practical use when you are underwater. But some Apps, such as Suunto DM5, will give you a post-dive graphic showing the % saturation across the 'fast' and 'slow' tissues so you can see how your NDL/deco time was working out during a dive. Enjoy!
@@timgosling6189 thank you so much! I have a terrible fear of letting equipment breathe for me, so I don't think I will need it, I'm just very curious and just fascinated by the science of it all!
I feel like there is a step missing for the Nitrogen absorption. The reason you get more nitrogen into your body to begin with is because more nitrogen can disolve into your blood under higher pressure. Like being able to disolve more sugar into the same amount of water. The nitrogen goes into your tissues from the blood as it circulates and exchanges gas. When you then ascend too fast the blood and tissues can no longer hold as much dissolved nitrogen and it starts to escape right where its held in the tissues and blood. If you get too much nitrogen here in this stage it will form bubbles which can be very harmful as they repeatedly mention.
I lived in the Florida Keys. Since we were surrounded by water, most of us (like me) learned to hold our breath for around 7 minutes on average. When I worked as a mate on a charter boat, tourists would often ask me how deep the water was - I'd reply, "if it's over your head, it doesn't matter". One time I was out on a WaveRunner in a hurricane (jumping 30'+ seas) when a huge wave aught me and pushed me around 50' or more under. The waves kept holding me down far underwater, and eventually I couldn't hold my breath anymore. I took a breath and things went black. But I can say drowning in salt water isn't a bad way to go - there's a moment of horror before your body forces you to breathe, but I just remember things being so calm and peaceful after that. When I came to the surface, my friend did the CPR and got me back...
One of the single most interesting videos I’ve ever watched. Explained so many concepts I had no idea about in such a simple way even me, a never before diver, understood it completely.
You should watch "last breath". It is a film, based on a true story. A North Sea saturation diver has his umbilical severed, and spends a long time at 100m in 2 Celsius water with no breathing gas or heating.
Yeah,i watcehd it just before few days ago on Netflix. I didn't know that they have that documentary there. I watched it because of these two guys and their channel!
I have never dived, will never dive and don't have any intent to. But man watching this is super addicting. @Woody & @Gus DO NOT STOP PAUSING! The things you have cleared up for a non-diver is really insane and helped me clear out questions i literally always had. Love you guys. Keep up the amazing work.
Love it when you all do these videos! I’m getting tired of youTubers making videos without doing the proper research. I’m sure if they sent their script to an actually dive professional they would have gotten a lot of useful changes that would have limit the misinformation they tend to spread.
someday some one is going to get sued ( not these two ) for sharing misinformation on youtube regarding any activity in the wilderness ( esp diving which is so technical) - these others dont quite understand the liability that they are pontificating
Never stop pausing boys!!! It's what draws us all to your videos. All your knowledge just adds so many layers to your shows. Good one on the channel growth too
At 8:13 Thank you so much Woody for that explanation! I'm a non diver but I've been watching you guys for roughly a month now so I've heard y'all talk about this before but the way Woody explained it in this video actually clicked for me so thank you! I'm hoping to become a certified diver in the future!
A easier (at least for me) way to understand is like this, 1 ata 80% nitrogen, 2 ata 160% nitrogen, etc…, so you need time to let that 160% go back down to 80% / normal levels
Hi Guys, at 37:09 you managed to "explain" my favorite pet peeve when saying that at that depth "their lungs are almost squeezed down to a peanut". That is just one of those cases where people misapply the physics and I hear it so often. The lungs compress only like this if you are freediving. When breathing compressed gas, your lungs are their normal size. Think of it in terms of a balloon. When you inhale, you add air to the balloon to its proper size. More importantly, if the compression while scuba analogy were right, then we wouldn't have lung over-expansion problems. At 10m our lungs would be compressed to half volume, we breath gas at double the pressure, so upon surfacing, our lungs return to normal volume (increasing by a factor of 2) while the gas expands by a factor of 2. The problem on ascending while holding your breath is precisely because our lungs do not change volume while changing depth and breathing compressed gas. So if we hold our breath with a full lung and surface from 10m, the gas cannot expand because the lungs don't expand, so we would have to hold 2 bar pressure in our lungs at the surface. But our physiology cannot do that, so the gas forces the lungs to expand and take damage. TLDR: if you are breathing compressed gas and change depth, your lungs remain at the same volume. Lung compression is only a thing if you hold your breath.
In this case how do you change depth? Like presumably you start a dive at the surface, but tanks are pressurised to deeper depth - is there a mechanical way to vary the pressure as you go deeper?
@@RugnirSvenstarr Yes. That is precisely the purpose of the regulator you breath from. It regulates the high pressure in the tank down to ambient pressure that you are at. It does this in two steps which is why you have that big metal blob right on the cylinder. This gives you an "intermediate" pressure that is still too high to breath but allows you to operate the second stage consistently as this intermediate pressure is fairly constant throughout the dive. The part that goes into your mouth then regulates the intermediate pressure down to the ambient pressure. Effectively that is a valve which opens whenever the pressure in your mouthpiece is less than the outside pressure. This releases gas into the mouthpiece and thus aligns the pressure of gas you breath with the pressure surrounding you.
Talk more about freediving and all that’s involved with it. When Gus was like ok I’ll stop with the technicalities of it I was like no go on! Great insight as always
Hydrogen, Hydrogen. I thought about it on the mix, totally forgot it loves to mix with oxygen to make water. Them read the Wikipedia and was like "of course" Maybe using two separate tanks... Hum... Still dangerous.
I definitely appreciate you pausing and giving us great commentary and background info, keep it up! You guys have given me a huge renewed interest in diving, after years of passively thinking “One day I oughta get scuba certified”. Now I’m finally making firm plans to get it done, and I owe that in large part to you guys. Keep up the great content ya’ll, seriously!
Guys forget about the people saying this and that about the stopping of the video. That’s what a review or a break down does. If y’all don’t want the video to be stopped then find the video and you can watch it non stop as much as you want.
Don't let Woody have any redbull... He already has fins, he doesn't need wings. I'm really pleased to see you guys addressing these videos that while they are trying to entertain as well as inform, I think in the end, they end up scaring people more than anything.
I love these videos from you guys. Thinking about how you mentioned the need to breathe isn't from oxygen, but a build up of Co2 - I used to play Oboe in highschool, and there's a technique called 'playing on empty' that most/all oboists use. Because you're trying to force air through such a small opening, Co2 builds up fast. So at times, while still on a breath of air, you need to exhale even more away from your reed so you can continue to play. I remember a few people who were learning who would complain about being 'floaty'... because of that Co2 build up. Anyway! Thought you might find that interesting :D
@@sullivan3503 I don't believe that was the cause. This was how it was explained to me by my oboe teacher who was a PHD. players were used to having a lot of air to push through their respective instruments and the oboe is a wildly different beast. The opening between the two reeds is tiny, and it can cause a build up of co/2. You'd still try to take in air, but your ventilation through the instrument changed, letting less out. So yeah, you'd have to take a larger exhale, pushing out the extra co/2, away from the instrument and could still play for a time after that. If you didn't you'd get this floaty feeling and or a headache.
I absolutely appreciate the fact that you all take the time off to explain to "non-divers". As a diver myself I always get asked questions like... Why can freedivers go way deeper and resurface without a safety stop? Why do we use different gas mixes and why not just use pure oxygen? And the worst of them all...Are you afraid of sharks?! But great job!
Would love to see you guys react to scenes from The Abyss. That's such a great movie for people interested in deep sea diving and saturation diving. Apparently the scene where they submerged the rat in the "oxygenated liquid" was real; the rat was actually breathing liquid oxygen. In the scene where they fill Ed Harris' dive suit with the liquid, it was just colored water, and he held his breath. There is a great documentary on the filming of The Abyss. They filmed it in empty nuclear reactor containment tanks that they filled with water. I believe all the actors were dive certified by the end of filming.
Oxygenated liquid and liquid oxygen are two *VERY* different things. No way would a rat, or any other creature, do anything in liquid oxygen except die instantly and spectacularly.
Yea but the ending when Ed Harris goes over “the cliff” and goes ridiculously deep was very silly. I forget how deep it was but it was hard for me to watch with even the small knowledge I have.
@@anonnona8099 well they specifically say that it is some perfluorocarbon. In the 60s the researchers clark and gollan found that rats can survive for several hours while completely submerged in it. Since then it has been used on humans hundreds of times in medical applications (succesfully) but its by no means as easy as just breathing it on your own.
The way you guys are explaining things is incredable! I'm a beginner in diving, but have already learned a lot from ya. Keep it up! P.S. It would be so badass if Woody will explain some additional techniques behind freediving.
I just recently watched the 2021 Vertical Blue Freediving competition. The depths they reach on one breath is unbelievable! I highly recommend you guys watch it! I always think about that when scuba divers discuss the depths they go to!!
Non-diver here...I greatly appreciate when you explain over the video. Woody was right, I couldn't repeat anything the video first said. The explanation of the nitrox mix makes so much sense now. It's the first time I've ever heard it explained. I was wondering why you take all this time getting your gear ready for only ten, 20 mins of diving. I was thinking, what a waste of money, but now it makes much more sense! Love you guys. I can never dive but have always wanted to. So I really enjoying living vicariously through you guys. I enjoy seeing how much joy you gain from talking about diving. That free diving vs scuba explanation was fascinating! Thanks y'all! 🥰
This might be my favourite video on the internet - absolutely fascinating. You guys have almost convinced me to give diving a shot. Being in Australia, it wouldn't be very difficult to get some training.
I love the way you explain things, Woody. I really appreciate that you simplified things for non-divers, and how you speak a little more slowly when explaining. I can already tell that you're a great instructor without even taking a class.
I am a complete non diver and don’t really have interest in diving. But in the last week I’ve watched probably 15 of your videos. You guys are putting out great content and make your content accessible, even to someone with no knowledge. Keep up the great work guys.
@@MsOpium you'd basically need a sealed pressure suit, or to be on a very long saturation regiment in a dive bell, saturation diving usually only goes max 600m (1900ish ft)
The human body is truly an amazing piece of work, so complex, but simply engineered. This one of the most important videos ever created for divers and non-divers to understand basic principles. Clear, concise, and excellent information. Thank you so much!!!
18:06 Thank you Gus for clarifying "pressure" as I also always thought that pressure was weight on the body per sq./inch. I'm not a diver & in fact, can't even swim & am terrified of water but love these videos since they terrify me beyond belief. Good job guys. Keep it up 👍
Are you too terrified to learn how to swim? Anybody can be taught to swim and should honestly learn if on just the basics. It's probably about the closest thing to flying without actually fly. This is a fear that can be overcome. If your still in fairly good shape and have the health to be taught to swim you should really look into conquering this fear. But again I'm telling you this when I really dont have any fears of anything. Maybe the closest I could come to understanding your fear would be dead people. But even then idk that I'm terrified of a body. Idk that I could actually touch a body like a mortician or what have you. But if I had somebody else with me I think maybe I could do it. In life you should not let any kind of fear dictate any aspect of your life. I was a bull rider when I was still young enough to do it and to be honest some of the bulls scared the hell out of me. But I refused to let that fear rob me of the chance to do what I was passionate about doing at that time. That fear of bull riding eventually turned into a love for bull riding and chasing that adrenaline high and the notoriety from the people that watched me do it. It was something that made me stick my head up a little higher and my chest out a little further. I loved being able to tell people that yea I am a cowboy and a bull rider. Over come your fear of water and get in there and own that shit even if it scared the shit outta you. Eventually you will learn to love to swim. I'm talking about actually swimming and not hoping in a 4 foot pool and calling that swimming. I'm talking about water that you cant touch the bottom in. Water that used to scare the hell outta you. Even if it's the deep end at the YMCA. It will make you feel amazing when you conquer any kind of fear that you had. Hopefully this book I just wrote inspires you to get out there and kick the hell out of your fear for water.b
This is great stuff, very well explained so that non divers can understand it. I'm a non diver, but have been fasinated by diving since seeing "The Deep" movie back in the day. I've watched alot of your videos, and this one is one of the best.
They've been doing experiments on if Humans can absorb oxygen through the intestines to get them through Covid. Turns out we can. Now lets see if Woody wants to try Butt Scuba.
You've never heard of the mark 1 mod 0 rebreather? Simple: you just put a clothes pin on your nose, stick one end of a rubber hose in your mouth, stick the other end up your ass, and breathe...🤣🤣🤣🤿
"Not gonna be long here....., just gotta add 1 thing"..... Proceeds to brilliantly explain everything you need to know. Never apologize, always explain. Your great at it and that's what these videos are about. Pause it up baby.✌
Yeah, guys, keep doing what you’re doing. The pauses are informative and shed light on the content you’re going over with us. It’s a unique channel and you guys are trailblazing. There’s a ton of dive channels, but you have created a unique, kinda niche channel that offers compelling footage/educational content and humor in the right balance. 👍
If you are intrested in redefining what possible about human limit in diving and apnea i suggest to read something about Haggi Statti, a greek fisher from the begining of 20th century
I know it’s a 2 yr old video by now and I’ve just found it but I’ve already dived 😜 into your videos and I don’t care how much you pause it, I really appreciate the knowledge you guys share and the time you take to make your videos and let us be apart of them. Thanks from someone who is terrified of water but dreams to dive or even snorkel comfortably.
Since it’s been a while that I’ve been on TH-cam, I’m going through watching older videos so I can catch up. You can both be hilarious at times. Woody: “Why don’t we breathe hydrogen all the time if it’s so great? Well, you’re a bomb.” 😂 Gus: “Where would we even get hydrogen without being on a blacklist for the fbi?” 😂 I love watching these videos. I work weird hours so I can’t be on as much as I’d like but I enjoy coming back and catching up on your discussions.
The problem is that hydrogen and oxygen are explosive when mixed even without a spark. Which wild when you consider that water is just hydrogen and oxygen in a molecule, but spearated to their gas forms and then mixed, whoa, you literally have rocket fuel.
Then you have the fact that hydrogen embrittles metals it comes into contact with, things can get a little dicey with hydrogen in the mix but I suppose we should just be thankful that we dont have to worry about high temperature hydrogen attack in this environment.
Crazy how zeppelins used so much of it eh? Granted, they were forced to cuz the US wouldnt export helium which the original plans called for using in dual gas cells with an inner hydrogen cell surrounded by an outer helium cell for safety but noone batted an eye at switching to hydrogen just because they hadn't had any trouble with it YET.
@PenileAugmentation I am not an expert either but oxygen and hydrogen, when mixed, can explode. They dont really just combine into water. Oxygen is O2 which is two oxygen atoms. Hydrogen is H2, which is 2 hydrogen atoms. Water is H2O, and H2O2 is hydrogen peroxide . I could be a bit off here because it really has been a while since I took chemistry, or any science classes for that matter lol, but I believe the issue is that when you have H2 and O2 you need to separate the two oxygen and combine only one with the hydrogen in order to form water and there is a need to add energy to make any of them combine. I can not remember the actual process but if I am remebering correctly when the energy is added to break the hydrogen and get them to combine, the reaction is violently exothermic and is the explosion I was mentioning. The result produces water but not without an explosion that you really really dont want right next to you, especially under water. Like I said this could be a bit off and I know I am leaving some details out because I am going from memory but at any rate it is not something you want. Lol
This was fascinating. Thank you. In my younger days I was a lifeguard. As part of our certification, we had to simulate a 12 foot deep recovery of an unconscious person who sustained a neck injury. It was a pass fail portion of the test. We had to pass a two minute breath hold with proper exhale procedures before being allowed to attempt the test. We had to swim down to depth, secure the person in the proper neck hold for head injuries, and return to the surface without breaking hold until relief guards at the surface back boarded the individual for emergency transport. While lifeguarding, I developed a horrible sinus infection from severe allergies. My sinuses never recovered. I have never been able to go deeper than about 6-8 feet without severe sinus pressure and discomfort. The pressure at just this depth causes headaches. I may never be able to dive, but I do admire and appreciate those who do. It offers souls like me a chance to see places otherwise out of reach. 🥰
Deepest I been was over 5000ft but I was flying a wasp. I was one of the sat divers who worked at the BP oil spill.after deep water horizon had it's blowout. Not sure if that counts because I was in a huge dive suit called a wasp but that was by far the deepest I have ever been.
No, like the Newtsuit we use the WASP which maintains near surface level pressure for the pilot. Just think of it like a 1000lb submarine shaped like a human body. I don't know anyone in our industry that has gone down to 5000ft in them. Ours is rated to just under 1000ft but they have been taken to a little over 3000ft.
Can't help but ask, when someone has to spend hours on decompression, what about when nature calls? Specifically #2. Or do diver fast for a day so they are "cleared out"?
I read that you drink enough water before scuba diving that you’re basically peeing clear. So yeah you do pee while diving. Don’t quote me though, just what I read online. #2 though I’d think it’s probably best to do that beforehand, but I’m sure there are some stories out there where this didn’t happen haha. And for someone that has multiple bowel movements a day, I’d think they’d want to get their GI tract problems under control before diving xD a handful of saccharomyces boulardii a day will keep it at bay xD
I like to hear stories where someone was diving and the good ol sneaky number 2 creeped up on a guy there was no way he was gonna be able to hold it. Yall know the #2im talking about. The one that hits you and it's either you find a toilet or your wet suit is gonna be pretty nasty once you do get to the surface. They should build in one of those little trap doors in the wet suits like they had in the old timers pajama outfits. Two buttons and your rear is free and you can let her rip.
Woody has the power 🤣🤣 Seriously though, it used to annoy me however the more I watch you guys the more I learn & enjoy your reactions. As someone mentioned in another comment, it's not really reaction videos, more educational. As a non diver you both have inspired a great admiration for cave divers. Keep up the great work 👏👏 🇦🇺🇦🇺
I’ve been diving since the mid 80’s, 6 years in the U.S. Navy, then 20 years as a commercial diver. Having written that, thanks for recording and uploading this video. 👍🏼
That happens if you don't equalize the pressure in your sinuses by holding your nose and breath and pushing outwards, like you do when taking off on a plane. Also if you have a cold or allergies sometimes you can't equalize pressure even when you try so you can't dive.
Love the channel guys. I've dived once, in a pool, over 30yrs ago. I'm just fascinated by the science & innovation required to allow us to do all this stuff. You guys have found the perfect balance of explaining things for non-specialists. Love from Scotland.
Why is the air you are breathing compressed? I would have thought the air coming out of a tank is always 1 atmosphere. Why does it change? The tank doesnt know how deep you are. its encased in solid metal.
You can only go so deep without being enclosed in a full body pressure suit without your skull caving in. That depth is around 900-1000ft depending on your particular physiology some peoples skulls are the right shape and strength to do it, others are not.. at least this is what I have been informed by many reliable sources and at the beginning of the video, let’s see how this goes lmao.
Absolutely false. Saturation divers have gone twice that depth with no risk at all to their skull, since there's no air pocket in your skull (and thus the pressure balances just fine). Yes, saturation divers wear helmets, but those aren't helmets to hold out the pressure, and they maintain at full depth pressure equivalent for weeks at a time while working.
Woody is such an AMAZING teacher! I’ve learned more about diving from this channel than most people know. It’s always fun to share my knowledge I’ve picked up!
As a non diver, thanks for pausing the video for explanation. That’s what I came here for… education. You guys do a good job of explaining the theory and real world experience of diving and I know a little more now than I did previously.
Thank you so much for pausing and explaining in ways that someone like me, as a non-diver, can understand. It also helps explain why doctors are unwilling to sign off on me being allowed to dive due to various health issues.
The no added dramatic effect, no bs explanations are what Im here for along with the stories. Im not a diver but I love this subject. I dont want to hear THAT someone died or almost died. I would rather understand why these things happen the way they do. Its crazy stuff to think about(my own personal nightmare) and its much more interesting with solid scientific explanations. As a wise rapper once said, “You ain’t doin somethin’ right, less you got em’ hatin’. -Plies
I am a complete non-diver but stumbled on your channel and really find it so interesting. Already binge watching 😉Thank you so much for explaining it so well. Xxx
Just a suggestion but have you guys thought about just playing the video all the way through and taking notes while video plays then after the video breaking it all down for us. Maybe you guys could watch the videos first and take all your notes so you'll be ready to break it down down for us. I love you guys and watch all your videos. I'm happy your channel is building pretty fast like it has been. Wish yall all the best.
OK so lets paint the picture. I don't swim because at a young age I almost drowned but after watching you guys for the last couple of days I'd be confident enough to scuba dive, this is purely due to the knowledge you guys have passed on in these videos. I like how you stop the video to give reactions & feedback on what we're watching because it gives a better understanding.
I love how people complain about the pausing. If you want to see the video they're watching without their input why are you watching the video here? The whole point is to get Gus & Woodys input
I was thinking that, too. I like hearing them talk about this stuff. That is why we click these videos!
The same people who order a cheeseburger without the cheese.
IKR?? like I get why people may not want them to talk while they have the video going, but that's what the pause button is for ladies and gents.
They even link the original video! So watch it first and come back!
I am hear to learn
I work as a nurse in an ICU and it’s cool to listen to the science behind diving because there are a lot of the same concepts applied to when patients are on ventilators. We actually use Heliox on babies who have croup to help get oxygen passed their swollen throat. Just intriguing. Thanks guys!
Oh wow that's cool!
Heliox is super expensive at a regular dive shop, I don't even want to know how much is it at the Hospital :D
This comment is super old, but the anesthesiologist that did the cave rescue in Thailand said the same exact thing! He even built his own rebreather (not recommended). Funny how professions can overlap.
@@DIVETALKi learned so much but can’t afford to breathe 21% oxygen 😂
@@davidgilbert2998 🤣
Never stop pausing. The discussion and knowledge is the entire reason I watch. When Woody says, "We don't need to go further into that in this video", I think to myself, "Well what video will that be in, I have more questions". Keep it up!
I appreciate that
No doubt! Never stop pausing! I know nothing about diving so I LITERALLY watch for the pauses and explanations!!!
@@Tryreading Yep, I've learned alot
Well not to mention it's the only way to make your video legal as far as fair use goes. The more you pause the less of an argument anyone has that your vid isn't fair use.
Agreed, I have learned an incredible amount on the topic from them with their stopping and explaining. Because of this, I no longer fear sharks. 🙂
I can’t go a single day without watching your discussions. I am a newbie diver with a little over 40 dives at the moment and since I can’t go diving as much as I want to (money is tight at the moment, y’all) I feel like I’m still being refreshed and I’m learning so many things from you guys, so thank you, and keep it up.
these guys got me lookin ginto diving too. and i NEVER thought id ever dive
@@MrEvldreamr do it, it’s amazing. I got hooked after my first try dive.
40 dives! You go, girl. ❤
@@shannonbriggs100 don’t tell anyone what to do
Greedo you telling him what to do ?
I think the word react doesn't do your video's justice. Maybe 'discuss' 'analyse' or some similar term is more fitting. You guys aren't just reacting, you're adding value, first hand knowledge and information, personality, fun, and more.
You guys are awesome, keep it up! I watch every video and im not even a diver! (Yet)
Exactly. Professional Dive master's analyze diving videos.
💯 well said
Fun as always! Just to clarify for non-divers, the 'tissue compartments' the guys are talking about that absorb nitrogen are not like the cuts of beef on poster in the butchers' shop. Neither are they spaces in the body like the lungs, gut or ears. They are actually just a term for theoretical types of tissue, like muscle, joints, bones or fat deposits that will absorb and release gas at different rates depending on what they are made of and how well they are supplied with blood. The nitrogen goes into the tissues in solution in body fluids. When you come up and the pressure decreases, we want to allow it to come out again still fully in solution, stay in solution in the blood and then evaporate out when the blood goes through the lungs. If the pressure drops too fast, it comes out of solution forming bubbles and these can both damage your tissues and form blood clots. The term 'the bends' comes from early divers who could suffer pain in the joints from nitrogen bubble damage, making them want to roll up into a ball. Not nice!
I resent the statement that a heart rate of 45 means you are in a coma. My watch says mine is currently 39 and I'm sitting here typing, or is this a dream? Nurse! Nurse!! Why is no one answering?
Never been saturation diving, my dive watch doesn't have a helium escape valve, so just a keyboard warrior on this, but why would your lungs be squeezed to the size of a peanut? At 534 metres, 54Bar of pressure, you are still breathing gas at 54Bar so your lungs should be quite normal, just as they are at 40m and 5Bar when recreational scuba diving. Also 1% O2 then becomes a partial pressure of about 0.5Bar, so about double what you would be getting at the surface from each breath.
BTW, my deepest dive is only 38 metres, and it felt just like 10 metres, only darker. And I wasn't narked, or at least I don't think so.........
Super old comment but no one responded so I figured I would. They actually made a bit of an error there. You're correct that the pressure would be balanced and wouldn't squeeze your lungs. The real reason is that the gas itself just becomes too dense. The strength of your diaphragm and ribcage is only so much. The resistance to flowing the gas in and out simply increases as it gets denser which is another benefit of helium (or hydrogen in this case) as its less dense.
This is also one of the biggest impediments to liquid breathing they mentioned at the end. Your body just isn't capable of exchanging the fluid in sufficient volumes. But for smaller animals like mice, this is less of an issue. As such, that scene in the Abyss where they demonstrate liquid breathing using a mouse basically drowning in oxygenated fluid, was actually real.
That answers almost all of my questions, but if you happen to know, could you tell me the rates at which each type of tissue absorbs and releases the solution and subsequently which decompression stops are for which type of tissues?
@@Teenangst16 It's complex, and the 16 'compartments' are divorced from specific anatomy. If you want a more technical explanation there is one which includes the absorption rates here: aquatec.files.wordpress.com/2011/03/decompression-theory.pdf
But this is not of immediate practical use when you are underwater. But some Apps, such as Suunto DM5, will give you a post-dive graphic showing the % saturation across the 'fast' and 'slow' tissues so you can see how your NDL/deco time was working out during a dive. Enjoy!
@@timgosling6189 thank you so much! I have a terrible fear of letting equipment breathe for me, so I don't think I will need it, I'm just very curious and just fascinated by the science of it all!
I feel like there is a step missing for the Nitrogen absorption. The reason you get more nitrogen into your body to begin with is because more nitrogen can disolve into your blood under higher pressure. Like being able to disolve more sugar into the same amount of water.
The nitrogen goes into your tissues from the blood as it circulates and exchanges gas. When you then ascend too fast the blood and tissues can no longer hold as much dissolved nitrogen and it starts to escape right where its held in the tissues and blood. If you get too much nitrogen here in this stage it will form bubbles which can be very harmful as they repeatedly mention.
Always a great day when Woody and Gus hit the mic.
Even better when Woodys on that caffeine!
Agreed!!!!!!
Always!
I lived in the Florida Keys. Since we were surrounded by water, most of us (like me) learned to hold our breath for around 7 minutes on average. When I worked as a mate on a charter boat, tourists would often ask me how deep the water was - I'd reply, "if it's over your head, it doesn't matter". One time I was out on a WaveRunner in a hurricane (jumping 30'+ seas) when a huge wave aught me and pushed me around 50' or more under. The waves kept holding me down far underwater, and eventually I couldn't hold my breath anymore. I took a breath and things went black. But I can say drowning in salt water isn't a bad way to go - there's a moment of horror before your body forces you to breathe, but I just remember things being so calm and peaceful after that. When I came to the surface, my friend did the CPR and got me back...
Scary stuff. Glad you survived....
jesus christ..... well atleast i know drowning is peaceful... i live in FL too
Florida sucks. And no dude you cannot hold your breath for 7 minutes.... now I know your from FL.
Sure buddy. Take this BS elsewhere.
Wowzers
As a non diver, I love all the pausing! If you didn’t pause as much, I’d have to pause myself & go Google stuff😂
One of the single most interesting videos I’ve ever watched. Explained so many concepts I had no idea about in such a simple way even me, a never before diver, understood it completely.
Awesome to hear!
You should watch "last breath". It is a film, based on a true story. A North Sea saturation diver has his umbilical severed, and spends a long time at 100m in 2 Celsius water with no breathing gas or heating.
I watched it. Pretty interesting documentary!
Yeah,i watcehd it just before few days ago on Netflix. I didn't know that they have that documentary there. I watched it because of these two guys and their channel!
That’s a great movie
i watched it last night, i thought it was fantastic!!!!! Last Breath Netflix.
Great movie! I was going to recommend it too.
I have never dived, will never dive and don't have any intent to. But man watching this is super addicting. @Woody & @Gus DO NOT STOP PAUSING! The things you have cleared up for a non-diver is really insane and helped me clear out questions i literally always had. Love you guys. Keep up the amazing work.
Love it when you all do these videos! I’m getting tired of youTubers making videos without doing the proper research. I’m sure if they sent their script to an actually dive professional they would have gotten a lot of useful changes that would have limit the misinformation they tend to spread.
True!
Its a good lesson in not believing everything you hear.
This paradigm is exceptionally true for the media
someday some one is going to get sued ( not these two ) for sharing misinformation on youtube regarding any activity in the wilderness ( esp diving which is so technical) - these others dont quite understand the liability that they are pontificating
Never stop pausing boys!!! It's what draws us all to your videos. All your knowledge just adds so many layers to your shows.
Good one on the channel growth too
At 8:13
Thank you so much Woody for that explanation! I'm a non diver but I've been watching you guys for roughly a month now so I've heard y'all talk about this before but the way Woody explained it in this video actually clicked for me so thank you! I'm hoping to become a certified diver in the future!
The air mixture still confuses me as to what mixes you can use at what depths
A easier (at least for me) way to understand is like this, 1 ata 80% nitrogen, 2 ata 160% nitrogen, etc…, so you need time to let that 160% go back down to 80% / normal levels
Not unsubscribing, we want more alien talk lol. Octopuses are totally aliens.
lol
I found this channel because of Mrballen. I am also okay with talking about aliens 👽 too. I also could totally see octopus 🐙 being aliens 👽 lmao.
Hi Guys, at 37:09 you managed to "explain" my favorite pet peeve when saying that at that depth "their lungs are almost squeezed down to a peanut". That is just one of those cases where people misapply the physics and I hear it so often. The lungs compress only like this if you are freediving. When breathing compressed gas, your lungs are their normal size. Think of it in terms of a balloon. When you inhale, you add air to the balloon to its proper size. More importantly, if the compression while scuba analogy were right, then we wouldn't have lung over-expansion problems. At 10m our lungs would be compressed to half volume, we breath gas at double the pressure, so upon surfacing, our lungs return to normal volume (increasing by a factor of 2) while the gas expands by a factor of 2. The problem on ascending while holding your breath is precisely because our lungs do not change volume while changing depth and breathing compressed gas. So if we hold our breath with a full lung and surface from 10m, the gas cannot expand because the lungs don't expand, so we would have to hold 2 bar pressure in our lungs at the surface. But our physiology cannot do that, so the gas forces the lungs to expand and take damage.
TLDR: if you are breathing compressed gas and change depth, your lungs remain at the same volume. Lung compression is only a thing if you hold your breath.
Thank you! I was going to comment the same thing.
🤙
In this case how do you change depth? Like presumably you start a dive at the surface, but tanks are pressurised to deeper depth - is there a mechanical way to vary the pressure as you go deeper?
@@RugnirSvenstarr Yes. That is precisely the purpose of the regulator you breath from. It regulates the high pressure in the tank down to ambient pressure that you are at. It does this in two steps which is why you have that big metal blob right on the cylinder. This gives you an "intermediate" pressure that is still too high to breath but allows you to operate the second stage consistently as this intermediate pressure is fairly constant throughout the dive. The part that goes into your mouth then regulates the intermediate pressure down to the ambient pressure. Effectively that is a valve which opens whenever the pressure in your mouthpiece is less than the outside pressure. This releases gas into the mouthpiece and thus aligns the pressure of gas you breath with the pressure surrounding you.
@@tobiashartung856 thank you for the explanation, very interesting 🙂
Talk more about freediving and all that’s involved with it. When Gus was like ok I’ll stop with the technicalities of it I was like no go on! Great insight as always
38:11 The look on Woodys face when Gus mentions hydrogen diving is priceless.
Hydrogen, Hydrogen.
I thought about it on the mix, totally forgot it loves to mix with oxygen to make water.
Them read the Wikipedia and was like "of course"
Maybe using two separate tanks...
Hum... Still dangerous.
I definitely appreciate you pausing and giving us great commentary and background info, keep it up! You guys have given me a huge renewed interest in diving, after years of passively thinking “One day I oughta get scuba certified”. Now I’m finally making firm plans to get it done, and I owe that in large part to you guys. Keep up the great content ya’ll, seriously!
Guys forget about the people saying this and that about the stopping of the video. That’s what a review or a break down does. If y’all don’t want the video to be stopped then find the video and you can watch it non stop as much as you want.
39:02 When Woody says "Octopus are aliens" and gus looks at him and says "Stop! ppl are gonna unsubscribe". That shit had me weak lmao
Haha! Likewise! The cheeky kid look on Woody's face is priceless, and Gus is like "oh, God, I know what's coming ... not again".
Don't let Woody have any redbull... He already has fins, he doesn't need wings. I'm really pleased to see you guys addressing these videos that while they are trying to entertain as well as inform, I think in the end, they end up scaring people more than anything.
Being scared is good! It reminds us of the very real dangers we face, it keeps us alert, it's what keeps us alive :D
i dont use caffiene much but when i do shits like a huge rush... most people i think use caffeine every day and dont feel its powerful effects...
I love these videos from you guys. Thinking about how you mentioned the need to breathe isn't from oxygen, but a build up of Co2 - I used to play Oboe in highschool, and there's a technique called 'playing on empty' that most/all oboists use. Because you're trying to force air through such a small opening, Co2 builds up fast. So at times, while still on a breath of air, you need to exhale even more away from your reed so you can continue to play. I remember a few people who were learning who would complain about being 'floaty'... because of that Co2 build up. Anyway! Thought you might find that interesting :D
I think the "floaty" feeling actually refers to hyperventilation, ie too MUCH oxygen.
@@sullivan3503 I don't believe that was the cause. This was how it was explained to me by my oboe teacher who was a PHD. players were used to having a lot of air to push through their respective instruments and the oboe is a wildly different beast. The opening between the two reeds is tiny, and it can cause a build up of co/2. You'd still try to take in air, but your ventilation through the instrument changed, letting less out. So yeah, you'd have to take a larger exhale, pushing out the extra co/2, away from the instrument and could still play for a time after that. If you didn't you'd get this floaty feeling and or a headache.
I don't know about diving with Hydrogen, that would be fairly dangerous. But, I'm up for a video on Gold Digging dive :D
This comment made my day xD
I absolutely appreciate the fact that you all take the time off to explain to "non-divers". As a diver myself I always get asked questions like...
Why can freedivers go way deeper and resurface without a safety stop?
Why do we use different gas mixes and why not just use pure oxygen?
And the worst of them all...Are you afraid of sharks?!
But great job!
Hello Woody and Gus! Greetings from Croatia, from Dubrovnik! ✌🇭🇷
Ohhh hello fellow neighbor! I live in bosnia with my bosnian husband :).
Whoever's doing the editing and thumbnails and figuring out the algorithm... A++..Woody, Gus another great video. stay safe!!
Would love to see you guys react to scenes from The Abyss. That's such a great movie for people interested in deep sea diving and saturation diving. Apparently the scene where they submerged the rat in the "oxygenated liquid" was real; the rat was actually breathing liquid oxygen. In the scene where they fill Ed Harris' dive suit with the liquid, it was just colored water, and he held his breath. There is a great documentary on the filming of The Abyss. They filmed it in empty nuclear reactor containment tanks that they filled with water. I believe all the actors were dive certified by the end of filming.
Oxygenated liquid and liquid oxygen are two *VERY* different things. No way would a rat, or any other creature, do anything in liquid oxygen except die instantly and spectacularly.
Yea but the ending when Ed Harris goes over “the cliff” and goes ridiculously deep was very silly. I forget how deep it was but it was hard for me to watch with even the small knowledge I have.
@@anonnona8099 well they specifically say that it is some perfluorocarbon. In the 60s the researchers clark and gollan found that rats can survive for several hours while completely submerged in it. Since then it has been used on humans hundreds of times in medical applications (succesfully) but its by no means as easy as just breathing it on your own.
@@bigd5899 I was responding to Gus's comment about "the rat was actually breathing liquid oxygen".
It wasn't.
en.wikipedia.org/wiki/Liquid_oxygen
One of my favourite movies!
I love when you guys pause the vids and go into more detail, your input and banter is *why* I’m here.
The way you guys are explaining things is incredable!
I'm a beginner in diving, but have already learned a lot from ya. Keep it up!
P.S. It would be so badass if Woody will explain some additional techniques behind freediving.
I don’t dive and never tried, but I am binge watching your videos. You are so entertaining and educational
I just recently watched the 2021 Vertical Blue Freediving competition. The depths they reach on one breath is unbelievable! I highly recommend you guys watch it! I always think about that when scuba divers discuss the depths they go to!!
Woody showing off his keyboard in these videos is so wholesome, you can really see the happiness in his face and it lights me up everytime
I'm not a diver at all and never will be but I like this channel and listen to these guys; they make it very interesting; Great job !
Non-diver here...I greatly appreciate when you explain over the video. Woody was right, I couldn't repeat anything the video first said. The explanation of the nitrox mix makes so much sense now. It's the first time I've ever heard it explained. I was wondering why you take all this time getting your gear ready for only ten, 20 mins of diving. I was thinking, what a waste of money, but now it makes much more sense! Love you guys. I can never dive but have always wanted to. So I really enjoying living vicariously through you guys. I enjoy seeing how much joy you gain from talking about diving. That free diving vs scuba explanation was fascinating! Thanks y'all! 🥰
This might be my favourite video on the internet - absolutely fascinating. You guys have almost convinced me to give diving a shot. Being in Australia, it wouldn't be very difficult to get some training.
You guys do a great job of explaining things in a way that non-divers can understand.
I always love their dynamic.
Gus: "Why would we do that?!"
Woddy: "Why not?" xD
I love the way you explain things, Woody. I really appreciate that you simplified things for non-divers, and how you speak a little more slowly when explaining. I can already tell that you're a great instructor without even taking a class.
Woody should design a coffee mug that we can buy lol, scuba tank mug might look cool.
Yes! That would be awesome!
I would definitely buy one
DIVETALK coffee mug, outstanding idea!
I am a complete non diver and don’t really have interest in diving. But in the last week I’ve watched probably 15 of your videos. You guys are putting out great content and make your content accessible, even to someone with no knowledge. Keep up the great work guys.
The guy who broke the record when it was 2000 ft deep taught me how to weld underwater. His name was willy he was a amazing salty old fart RIP WILLY
How is it even possible to diver that deep? Wouldn’t you need a dive bell and umbilical?
@@MsOpium you'd basically need a sealed pressure suit, or to be on a very long saturation regiment in a dive bell, saturation diving usually only goes max 600m (1900ish ft)
@@panzerfaus8459 I figured haha. That’s insane that people will go that deep
The human body is truly an amazing piece of work, so complex, but simply engineered. This one of the most important videos ever created for divers and non-divers to understand basic principles. Clear, concise, and excellent information. Thank you so much!!!
18:06 Thank you Gus for clarifying "pressure" as I also always thought that pressure was weight on the body per sq./inch. I'm not a diver & in fact, can't even swim & am terrified of water but love these videos since they terrify me beyond belief. Good job guys. Keep it up 👍
Are you too terrified to learn how to swim? Anybody can be taught to swim and should honestly learn if on just the basics. It's probably about the closest thing to flying without actually fly. This is a fear that can be overcome. If your still in fairly good shape and have the health to be taught to swim you should really look into conquering this fear. But again I'm telling you this when I really dont have any fears of anything. Maybe the closest I could come to understanding your fear would be dead people. But even then idk that I'm terrified of a body. Idk that I could actually touch a body like a mortician or what have you. But if I had somebody else with me I think maybe I could do it. In life you should not let any kind of fear dictate any aspect of your life. I was a bull rider when I was still young enough to do it and to be honest some of the bulls scared the hell out of me. But I refused to let that fear rob me of the chance to do what I was passionate about doing at that time. That fear of bull riding eventually turned into a love for bull riding and chasing that adrenaline high and the notoriety from the people that watched me do it. It was something that made me stick my head up a little higher and my chest out a little further. I loved being able to tell people that yea I am a cowboy and a bull rider. Over come your fear of water and get in there and own that shit even if it scared the shit outta you. Eventually you will learn to love to swim. I'm talking about actually swimming and not hoping in a 4 foot pool and calling that swimming. I'm talking about water that you cant touch the bottom in. Water that used to scare the hell outta you. Even if it's the deep end at the YMCA. It will make you feel amazing when you conquer any kind of fear that you had. Hopefully this book I just wrote inspires you to get out there and kick the hell out of your fear for water.b
@@frankmaxfield7025❤💯😀👍
Awesome comment!!! God bless!
🏖️🏖️🏊🌊🐬🤿😊🥽
This is great stuff, very well explained so that non divers can understand it. I'm a non diver, but have been fasinated by diving since seeing "The Deep" movie back in the day. I've watched alot of your videos, and this one is one of the best.
They've been doing experiments on if Humans can absorb oxygen through the intestines to get them through Covid. Turns out we can. Now lets see if Woody wants to try Butt Scuba.
Hahahaha
ScuButt Diving. 😂
You've never heard of the mark 1 mod 0 rebreather? Simple: you just put a clothes pin on your nose, stick one end of a rubber hose in your mouth, stick the other end up your ass, and breathe...🤣🤣🤣🤿
@@DavidThomas-qq4hf perpetual motion at the finest.
Who’s complaining about them pausing the video?!
That’s the best part of the video, I wish they’d explain as much as they possibly can.
The alien part was really funny.. The back and forth was hilarious.
"Not gonna be long here....., just gotta add 1 thing".....
Proceeds to brilliantly explain everything you need to know. Never apologize, always explain. Your great at it and that's what these videos are about. Pause it up baby.✌
Yeah, guys, keep doing what you’re doing. The pauses are informative and shed light on the content you’re going over with us. It’s a unique channel and you guys are trailblazing. There’s a ton of dive channels, but you have created a unique, kinda niche channel that offers compelling footage/educational content and humor in the right balance. 👍
You guys are amazing at explaining things. I'm truly thankful you two found each other and became friends.
Woody, it's time to switch to nitrogenated coffee
Don't ever stop stopping and commenting, that is why I keep coming back. I love the explanations and the science
If you are intrested in redefining what possible about human limit in diving and apnea i suggest to read something about Haggi Statti, a greek fisher from the begining of 20th century
I know it’s a 2 yr old video by now and I’ve just found it but I’ve already dived 😜 into your videos and I don’t care how much you pause it, I really appreciate the knowledge you guys share and the time you take to make your videos and let us be apart of them. Thanks from someone who is terrified of water but dreams to dive or even snorkel comfortably.
Since it’s been a while that I’ve been on TH-cam, I’m going through watching older videos so I can catch up.
You can both be hilarious at times.
Woody: “Why don’t we breathe hydrogen all the time if it’s so great? Well, you’re a bomb.” 😂
Gus: “Where would we even get hydrogen without being on a blacklist for the fbi?” 😂
I love watching these videos. I work weird hours so I can’t be on as much as I’d like but I enjoy coming back and catching up on your discussions.
Never apologize for stopping woody, I watch these videos to become a better diver. Gus and Woody's input is priceless. Keep it up guys 🤙🏻🤘🏻
The problem is that hydrogen and oxygen are explosive when mixed even without a spark. Which wild when you consider that water is just hydrogen and oxygen in a molecule, but spearated to their gas forms and then mixed, whoa, you literally have rocket fuel.
Then you have the fact that hydrogen embrittles metals it comes into contact with, things can get a little dicey with hydrogen in the mix but I suppose we should just be thankful that we dont have to worry about high temperature hydrogen attack in this environment.
Crazy how zeppelins used so much of it eh? Granted, they were forced to cuz the US wouldnt export helium which the original plans called for using in dual gas cells with an inner hydrogen cell surrounded by an outer helium cell for safety but noone batted an eye at switching to hydrogen just because they hadn't had any trouble with it YET.
@@ufc990 honestly it still blows my mind how destructive and poisonous oxygen is to so many things.
@PenileAugmentation I am not an expert either but oxygen and hydrogen, when mixed, can explode. They dont really just combine into water. Oxygen is O2 which is two oxygen atoms. Hydrogen is H2, which is 2 hydrogen atoms. Water is H2O, and H2O2 is hydrogen peroxide . I could be a bit off here because it really has been a while since I took chemistry, or any science classes for that matter lol, but I believe the issue is that when you have H2 and O2 you need to separate the two oxygen and combine only one with the hydrogen in order to form water and there is a need to add energy to make any of them combine. I can not remember the actual process but if I am remebering correctly when the energy is added to break the hydrogen and get them to combine, the reaction is violently exothermic and is the explosion I was mentioning. The result produces water but not without an explosion that you really really dont want right next to you, especially under water. Like I said this could be a bit off and I know I am leaving some details out because I am going from memory but at any rate it is not something you want. Lol
I'm not a diver but have learnt SO much from the many vids of yours I've watched recently.... Love the repartee between you guys.
Woody drinks coffee?? Whaaaaaaat
Lots of it!
I like how he said "Im on coffee" like its his drug of choice.
@@wespope9079 I’ve truly come to appreciate his coffee addiction haha (as I drink coffee now)
This was fascinating. Thank you. In my younger days I was a lifeguard. As part of our certification, we had to simulate a 12 foot deep recovery of an unconscious person who sustained a neck injury. It was a pass fail portion of the test. We had to pass a two minute breath hold with proper exhale procedures before being allowed to attempt the test. We had to swim down to depth, secure the person in the proper neck hold for head injuries, and return to the surface without breaking hold until relief guards at the surface back boarded the individual for emergency transport.
While lifeguarding, I developed a horrible sinus infection from severe allergies. My sinuses never recovered. I have never been able to go deeper than about 6-8 feet without severe sinus pressure and discomfort. The pressure at just this depth causes headaches. I may never be able to dive, but I do admire and appreciate those who do. It offers souls like me a chance to see places otherwise out of reach. 🥰
Woody: "Sharks aren't dangerous to divers." THANK YOU!!!! Thank you for pausing to say that!
I personally enjoy when you guys pause the video and give insightful commentary and explanations.
*THEY"RE ALIENS* Woody mouths as loudly as one can mouth
I don't think you pause too much. The whole reason I watch is to hear your input, and I enjoy what you have to say.
Deepest I been was over 5000ft but I was flying a wasp. I was one of the sat divers who worked at the BP oil spill.after deep water horizon had it's blowout. Not sure if that counts because I was in a huge dive suit called a wasp but that was by far the deepest I have ever been.
does that mean you did 50 days of deco?
No, like the Newtsuit we use the WASP which maintains near surface level pressure for the pilot. Just think of it like a 1000lb submarine shaped like a human body. I don't know anyone in our industry that has gone down to 5000ft in them. Ours is rated to just under 1000ft but they have been taken to a little over 3000ft.
Woody is such an amazing teacher. Very good at explaining without condescending, confident in his knowledge, and just an overall pleasant dude!
Can't help but ask, when someone has to spend hours on decompression, what about when nature calls? Specifically #2.
Or do diver fast for a day so they are "cleared out"?
We wouldn't know how going to the bathroom in space worked if nobody asked the question, so now I'm also curious about this! 😆
Brilliant question. I'm also curious
I read that you drink enough water before scuba diving that you’re basically peeing clear. So yeah you do pee while diving. Don’t quote me though, just what I read online. #2 though I’d think it’s probably best to do that beforehand, but I’m sure there are some stories out there where this didn’t happen haha. And for someone that has multiple bowel movements a day, I’d think they’d want to get their GI tract problems under control before diving xD a handful of saccharomyces boulardii a day will keep it at bay xD
I like to hear stories where someone was diving and the good ol sneaky number 2 creeped up on a guy there was no way he was gonna be able to hold it. Yall know the #2im talking about. The one that hits you and it's either you find a toilet or your wet suit is gonna be pretty nasty once you do get to the surface. They should build in one of those little trap doors in the wet suits like they had in the old timers pajama outfits. Two buttons and your rear is free and you can let her rip.
Woody has the power 🤣🤣
Seriously though, it used to annoy me however the more I watch you guys the more I learn & enjoy your reactions. As someone mentioned in another comment, it's not really reaction videos, more educational. As a non diver you both have inspired a great admiration for cave divers. Keep up the great work 👏👏
🇦🇺🇦🇺
If Mike Young wants to dive with hydrogen I might say yes... LOL LOVE IT, Keep roping him into things Woody, we are all looking forward to the videos
That's the plan!
I’ve been diving since the mid 80’s, 6 years in the U.S. Navy, then 20 years as a commercial diver. Having written that, thanks for recording and uploading this video. 👍🏼
"The only time you should be afraid of sharks is when you don't see any".
No joke, I try swimming to the bottom of 12 ft deep pool and I get the worst headache 😖
That happens if you don't equalize the pressure in your sinuses by holding your nose and breath and pushing outwards, like you do when taking off on a plane. Also if you have a cold or allergies sometimes you can't equalize pressure even when you try so you can't dive.
Love it when you all pause the video for commentary !!
How about Bond villains ? Are they dangerous to divers.? Lol
Extremely
@@DIVETALK haha 👍
So very glad to see this channel growing so well!!! You guys deserve it! Keep up the awesome work!
I’m personally glad woody has a pause button, as soon as I have a question inevitably here he comes with the answer. One request more dog please 🤣
I’m petrified of diving but absolutely fascinated by you both.
Hey Woody, you hit pause all you need to don't worry about them.
Love the channel guys. I've dived once, in a pool, over 30yrs ago. I'm just fascinated by the science & innovation required to allow us to do all this stuff. You guys have found the perfect balance of explaining things for non-specialists. Love from Scotland.
Why is the air you are breathing compressed? I would have thought the air coming out of a tank is always 1 atmosphere. Why does it change? The tank doesnt know how deep you are. its encased in solid metal.
Pause pause pause. And pause again. The input and knowledge is the whole reason I watch!
You can only go so deep without being enclosed in a full body pressure suit without your skull caving in. That depth is around 900-1000ft depending on your particular physiology some peoples skulls are the right shape and strength to do it, others are not.. at least this is what I have been informed by many reliable sources and at the beginning of the video, let’s see how this goes lmao.
Absolutely false. Saturation divers have gone twice that depth with no risk at all to their skull, since there's no air pocket in your skull (and thus the pressure balances just fine). Yes, saturation divers wear helmets, but those aren't helmets to hold out the pressure, and they maintain at full depth pressure equivalent for weeks at a time while working.
@@clapanse go ahead and try it with just a wetsuit on and let us know how it goes then.
Woody is such an AMAZING teacher! I’ve learned more about diving from this channel than most people know. It’s always fun to share my knowledge I’ve picked up!
As a non diver, thanks for pausing the video for explanation. That’s what I came here for… education. You guys do a good job of explaining the theory and real world experience of diving and I know a little more now than I did previously.
for a non diver, this is by far the most educational video. Thanks guys. Look forward to your videos all the time, watching in full! :)
Keep pausing! Your commentary is really helpful. I don't dive myself so i love to listen to you guys explaining
One of the great communities on TH-cam for expertise knowledge 👍🏻
Thank you so much for pausing and explaining in ways that someone like me, as a non-diver, can understand. It also helps explain why doctors are unwilling to sign off on me being allowed to dive due to various health issues.
The no added dramatic effect, no bs explanations are what Im here for along with the stories. Im not a diver but I love this subject. I dont want to hear THAT someone died or almost died. I would rather understand why these things happen the way they do. Its crazy stuff to think about(my own personal nightmare) and its much more interesting with solid scientific explanations. As a wise rapper once said, “You ain’t doin somethin’ right, less you got em’ hatin’. -Plies
Keep up the great content , y’all are the reason for the content ! pause 100,000 times , real supporters are here for you guys ! Y’all are the show !
I am a complete non-diver but stumbled on your channel and really find it so interesting. Already binge watching 😉Thank you so much for explaining it so well. Xxx
I have zero desire to dive. But I stumbled across this channel and I love learning about it. Thank you
Just a suggestion but have you guys thought about just playing the video all the way through and taking notes while video plays then after the video breaking it all down for us. Maybe you guys could watch the videos first and take all your notes so you'll be ready to break it down down for us. I love you guys and watch all your videos. I'm happy your channel is building pretty fast like it has been. Wish yall all the best.
Wow the pressure thing was gold. Never thought about it
This is one of my favorite videos from you guys so far!
I’ve binged 30+ of your videos.
Thanks for all of the pausing! These gas mixes have always sounded so intimidating to me, but now I understand them! I really enjoyed this!
Glad you guys take the time to explain your videos. Not only am I learning but feel I'm right there in the action.
OK so lets paint the picture. I don't swim because at a young age I almost drowned but after watching you guys for the last couple of days I'd be confident enough to scuba dive, this is purely due to the knowledge you guys have passed on in these videos.
I like how you stop the video to give reactions & feedback on what we're watching because it gives a better understanding.