Surviving the World's Deepest Dives

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Patreon: / realscience
Twitter: / stephaniesamma
Instagram: / stephaniesammann
Thank you to Steve Minehan for letting us use some of his saturation diving footage!
Credits:
Writer/Narrator/Editor: Stephanie Sammann
Editor: Dylan Hennessy
Illustrator/Animator: Kirtan Patel kpatart.com/illustrations
Sound: Graham Haerther haerther.net
Thumbnail: Simon Buckmaster / forgottentowel
Producer: Brian McManus / realengineering
References:
[1] www.waterencyclopedia.com/La-M...
[2] www.alertdiver.com/Saturation_...
[3] www.msdmanuals.com/en-nz/home...
[4] en.wikipedia.org/wiki/Nitroge...
[5] www.navalhistory.org/2012/07/...
[6] en.wikipedia.org/wiki/Heliox
[7]www.atlasobscura.com/articles...

[@derronong9331]

I have a story from my teacher and diving instructor. He was once doing about a 40 meter dive down with either a student or a friend. His friend suddenly took out his regulator started blowing air into the water. He took that person up and when asked about it, his friend said that he was "giving air to the fishes". Nitrogen narcosis can be really amusing

[@epauletshark3793]

He got narc'd

[@kathyinwonderlandl.a.8934]

Extremely deadly .it must have been a good lesson

[@HiltonMuller]

I have been on a dive when one my students did exactly that.

[@kaibe5241]

It's supposedly like being happily drunk.

[@bunnyban5365]

Nothing wrong with that

[@citizenblue]

This video managed to take a subject that I have had no particular interest in and presented it in such a way that I'm about to binge everything I can to learn more about it! I absolutely cannot wait for the part 2. Thanks, real science! You're clearly doing what you do best

[@alexlandherr]

Chris Odom Part 2?

[@citizenblue]

@@alexlandherr I'm not sure why you seem confused. The end of the video says that there will be a part 2 to talk more about liquid breathing

[@ht-cr3ms]

This presentation is spot on! Hats off to this channel and the hard work 👌

[@jndivetrips3765]

You should get certified to dive and you will enjoy the subject even more

[@Maloy7800]

Chris, start with Mighty Ships. Scandi Arctic. A very good look on saturation diving. And, I must add, the source of information for this video.

[@621Tomcat]

Man this video is deep.

[@zyansheep]

Badum-tsh

[@FlamingBasketballClub]

Like the deep blue sea 🤣

[@Mireaze]

Booooo

[@jana31415]

And im 14, you know what this meand

[@colonelstriker2519]

Take my Like and leave

[@MedlifeCrisis]

Crazy coincidence, I treated a retired sat diver (welder) this week and was telling my colleagues about sat diving and playing them videos of men in a tiny chamber talking like Mickey Mouse 😂

[@realscience]

Oh wow! That is insane! I'd love to talk to someone who has done it. Bet there's some great stories to hear

[@abm8017]

As serious as it is, it sounds funny lol. If it were me hearing them on the other side I’d have a hard time holding back a laugh

[@billybull7419]

Medlife Crisis! Love your videos.

[@aaronrocs]

Can you say anything about what that the long term effects of saturation diving are?

[@salvamar-ataleofsalvagedee8997]

​@@realscience My uncle was a pioneer saturation diver during the 70's and I just wrote wrote a biographical noval about his life: Salvamar - A Tale Of Salvage & Deep Diving. www.amazon.com/dp/B07ZH9XNYG (his deepest dive was 295m)

[@CommercialDivingFAQ]

Well explained. I'm a Saturation Diver and I haven't found another channel that explains the Commercial Diving world in such easy to understand terms. I'll be linking this in my playlists. Looking forward to part 2.

[@rckenigma4404]

One of our dive team came over the comm saying he found gorilla tracks, then proceeded to "follow" them...... good times!!! course we had to pull him up the water column a bit

[@benthejrporter]

@@rckenigma4404 I met a man a couple of years ago who saw some strange glowing egg shaped object while working on a north sea oil rig.

[@wicklash9065]

Hey, i am a young man living on the east coast of canada. I really want to get into saturation diving. But i dont really know how. I feel like it is the job i was made to do. Where do i go from here?

[@carterrussell5888]

@@wicklash9065 not a sat diver but I’ve done some research: From what I know Sat Diving is very kinda like the pro league for commercial diving, you first have to obtain a commercial diving license, the work several years as a commercial diver building up your skill and experience, and then from there you try and find sat diving jobs I could be wrong so correct me if I am

[@hoponasu2471]

@@wicklash9065 hello - first things first - you have to weld before you dive so that skill need to be learned before you enter any commercial dive school - you do not have to be diver to begin but you do have to be able to do the job on dry land before going into deep.

[@davidschaftenaar6530]

There's this annoying thing I have with most youtube science videos: They rarely go beyond a certain level of detail and because of that almost never tell me anything I didn't already know. Real Science has taught me something entirely new with every video thus far, so: Thanks!

[@pbj4184]

Yes, it gets boring after learning about the thing for the nth time. KZbinrs like Real Science are doing a great thing by doing deep research and finding novel stuff that everyone already hasn't talked about.

[@justinh6651]

That's why it's called *Real Science*

[@kasperk679]

There is a lot of wrong information in this video. Don't learn from it, learn from a REAL, GOOD instructor.

[@davidschaftenaar6530]

@@kasperk679 like what? Nothing strikes me as particularly implausible to be honest.

[@oswald2799]

As a commercial diver, I can tell you, dcs hurts like hell

[@treelinehugger]

I am a former U.S. Navy Deep Sea Salvage Diver from the 1970's era and I give this video two thumbs up. Well done!

[@spideym35i]

Thank you for your service sir!!! Your job sounds interesting

[@orchdork775]

Wow, that is so cool!! What got you into that field? Do you have any interesting stories to share?

[@wncbros]

do you know jimmy Johnson ?!

[@neighborhoodcaptain790]

I’ve never thought though I’d say this, but with all the stuff going on on land right now, I think I might move to the sea.

[@drewlovely2668]

What about sharks and jellys?

[@blackace7782]

Drama Queen

[@thinkabout602]

@@drewlovely2668 we would eat them - no kidding

[@aidenmclaughlin1076]

@drew lovely They’re nothing to worry about

[@zKooky]

Definitely. I'd prefer underwater living to living on Mars

[@luvleycarbine3978]

I believe the deepest commercial dive recorded was some 2300 something feet and they had a gas mixture of helium and 1% oxygen because the pressure was so great on their lungs. This stuff is really fascinating.

[@HiltonMuller]

Yeah, they didn't mention oxygen toxicity.

[@daCubanaqt]

As you go deeper, your body absorbs more nitrogen so that is why they have more oxygen than nitrogen in their tank. Nitrogen narcosis is counteracted by helium.

[@La0bouchere]

@@deeps78 COMEX actually did an open sea dive to 534m in the 90s (part of Hydra VIII using heliox)

[@f0e68c]

One athmosphere on surface, two on 10 meters, three on twenty.

[@kasperk679]

I found more wrong information in this video. Don't take it to serious.

[@f0e68c]

@@kasperk679 i stop it for write my comment about mistake with athmospheres and think never to return and watch it again, so yes, i realize how many terrible things they could tell me if i decide to watch this till the end

[@boxr_4214]

tbh it’s kinda weird to measure things in absolute pressure. it’s not really wrong just a different way of measuring.

[@ignacioaguirrenoguez6218]

Ян Гусев soo... what’s wrong with it?

[@f0e68c]

@@ignacioaguirrenoguez6218 did you seen video? Theyre showing wrong facts on it

[@jessemena9791]

I'm proud to say, I was a Commercial Diver Medic for 10 years, did salvage, construction, nuclear work, and as exciting as it is, it does take a toll on your body.

[@kathyinwonderlandl.a.8934]

For sure!

[@nf794]

Im really interested in this kind of Work, is it worth it?

[@d.dementedengineerc99isurf26]

Did you keep a diving knife in your Heliox pressure suit, or did the equipment and environment make that too dangerous?

[@fotmheki]

Some clarification. 1. Recreational divers can reach 40 meters. 2. Nitrogen narcosis is an old term, now is called gas narcosis as also oxygen give is contribution to it (and helium, when used). 3. Most of works happen in the first 30 meters. 4. Diving air is 79% nitrogen and 21%, 78- 22 it's considered to be Nitrox (aka Enriched Air) and will limit the depth of your dive. but extend the time at depth. Control oxygen partial pressure is key to avoid convulsion. 5. Helium is a "cold gas", when breathed it remove heat from the body but without giving the coldness feeling and can lead to hypothermia if body temperature is not under control. 6. Sat diving can be as long as 28 days. 7. During sat diving the immune system will decrease is functionality, that's why every sat environment should be deeply cleaned to avoid infection.

[@shitlordflytrap1078]

Idk why but even with all of the bad stuff this sounds so intriguing to me.

[@Nayo987]

Yeah to mee too bro

[@oliverm1255]

Liquid breathing though...

[@Nayo987]

@@oliverm1255 yeah im so exited for the next video

[@shitlordflytrap1078]

@@oliverm1255 I've read about it before. It sounds disgusting as shit but then again, humans literally inhale tubes of burnt paper for recreational purposes.

[@codycast]

Soon deep under water will be the only place safe from looters

[@Berkcam]

When you step out of a sat chamber on reaching surface the first few words out of your mouth are incredibly deep. Your vocal cords have been fighting against the thinness of helium for days and suddely breathing normal air comes as a shock.

[@Zeknix]

Never done sat but switching over to air from heliox is always a little more taxing to me for the first couple of breathes. Amazing how easy it really is to breath heliox over air.

[@orchdork775]

Really? That's crazy haha. I wonder if there are any videos of that online. Reminds me of how astronauts can't walk when they get back to earth because their body needs to re-acclimate to the gravity. Deep sea diving is basically like being an underwater astronaut when you really think about it haha

[@nrw34260]

Actually you are on air for the last 100+ feet when decompressing, so you will be talking normally.

[@jasonwise5601]

@@nrw34260 thats not true

[@Fabsh27]

As a recreational diver myself who's allowed to (only) go to 30m i can't even imagine how much more challenging saturation diving is. Very good and informative video, looking forward to the second one!

[@classicjag76]

Such a dangerous job on so many levels. I read a story about an accident in one of the pressurized bells and it is unbelievably gruesome. Lots of respect to sat divers and the people that keep them safe.

[@Antarath]

Probably the Byford Dolphin accident where 3 british divers and 2 norwegians lost their lives when one of them (let's say the fifth diver) disconnected the diving bell from the decompression chamber before the chamber door had been closed, which caused an explosive decompression with four divers inside it. Instant death. There was 10 atmospheres inside the chamber and bell, and one of the divers was sucked (or rather blown) through a small opening cause by the jammed chamber door.

[@d.dementedengineerc99isurf26]

@@Antarath 10 atm? What depth does that equal to? Sounds like 60 + meters.

[@Antarath]

​@@d.dementedengineerc99isurf26 100 meters (295 feet). 147 PSI. It's one 1 atm for each 10 meters below the surface.

[@d.dementedengineerc99isurf26]

@@Antarath That figure omits the one natural atmosphere of pressure found at sea level from the earth itself, but I suppose that should be set to zero for simplicity.

[@asammahina]

This was genuinely one of the most interesting and most well made, and informative videos I've seen in a very long time, definitely earned my like and subscription.

[@klauserji]

Just be aware of Reaper Leviathan

[@aidenmclaughlin1076]

Go grab the PRAWN suit!

[@jacobmfamexo]

Cerberus modified my Cain to fire underwater. If negotiations go poorly, I'll be ready.

[@accountisnotdeleted1063]

Oh my god if that thing existed I would never touch water again haha

[@FinalShieldnobi]

@@accountisnotdeleted1063 with how little we actually know about the deep, things like the Reaper Leviathan may be everywhere down there o.o

[@accountisnotdeleted1063]

@@FinalShieldnobi 0.O

[@karimgodoy]

Very informative, just a couple of corrections, the limit for recreational diving is 40m not 33m and the absolute pressure at 33m would be 4.3 ATMs ( remember to add the atmospheric pressure) . The air is composed by 78% Nitrogen 20.9% oxygen and 1.1% of other gases which then its rounded as 79% N and 21% Oxygen, the other gases are negligible to diving. In respect of the gas mixtures you got Heliox ( Helium and Oxygen) and there is also Trimix ( add Nitrogen)

[@evanmurphy2165]

Trimix is not common the commercial diving world. It is popular amongst the recreational 'tech diving' scene as it is a bit cheaper than a true heliox mixture. Currently the deepest a commercial divers operate up to 300m with some people proposing up to 500m with a hydrogen/ helium/ oxygen blend. The deepest a human has been pressurised to is 710m in a chamber in France on an aforementioned hydrogen/helium/oxygen mix. FYI when commercial diving is carried out at around 250m or more there is only about 2-4% oxygen in the heliox mix to account for the partial pressure requirements of our physiology.

[@Deadlyish]

Wow. Mad respect to the guys doing this job. It must be a harsh mix of difficult and dangerous, pushing the human body to do things it never evolved to be capable of.

[@Rei-ze2eu]

Liquid breathing huh? At this point scientists are just taking stuff from sc-fi and making it real. Also sounds like thing straight from Evangelion.

[@derpkube]

you mean LCL?

[@Rei-ze2eu]

@@derpkube Yea exactly

[@4ryan42]

Also from the movie The Abyss

[@Jylakir]

There was some tests, but Liquid breathing has its own drawbacks. The lung is not made to use a liguid to breathe. From damage to the mucous membrane to the problem to get the co2 out of the blood into the liquid and so on. The pressure is just a real problem down there I don't think we can fix these issues without an full atmospheric diving suit.

[@callumscott953]

They've never had any successful tests breathing liquid. It works, we know it can work, but people reject it because the sense of breathing liquid is the same of that of drowning. So while the person is perfectly fine and could absolutely survive, the feeling is to uncomfortable, at least for the people they've tested it on

[@unrealed]

This was by far my favorite Real Science video so far. Great job!

[@daily8150]

This is so well made, the narrative is very captivating, loved it.

[@user46346bdtgry]

cool video, but as a scuba diver myself, i would just like to point out that the pressure readings at 1:00 would better in absolute pressure rather water pressure (the atmosphere itself adds 1 atm of pressure, ie at 30m depth there is 4 atm). this is important because the gas laws (boyle's law, charle's law, dalton's law, etc) use absolute pressure

[@noeljonsson3578]

Hey so it says that every 10 meters adds another 1 atmosphere of pressure (which is close enough) but then you have 20m = 2 atm and 30m = 3 atm but if you follow this it means that 10m = 1 atm and that 0m = 0 atm, that would mean that it would be a vacuum at surface level which there isn’t. you can’t forget that there is already pressure at the surface which means that 0m = 1 atm and that 10m = 2 atm and that 20m = 3 atm. Just though I should point that out.

[@realscience]

oh yeah woops. my bad!

[@rbesfe]

I mean if you look at it as gauge pressure rather than absolute pressure the markings are technically correct

[@noeljonsson3578]

Real Science I loved the video though. And yeah I have made this mistake before as well.

[@save_barba]

I came to the comments to point that out! Great video anyway (as always)!

[@closetsingle]

@Paul O'Reilly The surface pressure (0 m) is 1 atm, at 10 m you add 1 and so it's 2 atm.

[@mannydib]

I already knew a lot about saturation diving physiology but loved the way you explained it The history of it was new to me. I didn't know about Sea Lab. Keep up the good work. Looking forward to more content. This kinda stuff is what brings me to KZbin

[@raymondwebb6535]

Just to clarify you would have 3 atmospheres of pressure at 20 meters because you are gaining one atmosphere every 10 meters on top of your previous one atmosphere at the surface.

[@joeblack4786]

Well done! Not many documentaries cover this career very well. At 25 year's now, nervous about finding something after. Not much compares

[@WispyFrost371]

aagh cliffhangers!!! You had me hooked

[@Hyperion656]

I'm really looking forward to part 2, I've been waiting for a long time to see a video about liquid breathing.

[@AtomicFrontier]

Just made a video on the topic over on my channel (actually quite similar to this one, so you can skip the first 2 minutes) which you might find interesting. Hope you enjoy!

[@Hyperion656]

@@AtomicFrontier you just got another sub great video.

[@dvbs3608]

Atomic Frontier make a new video!

[@AtomicFrontier]

@@dvbs3608 Hi! So... I've just finished filming six new ones and have two-and-a-half edited. The plan is to finish my thesis (only 2 months to go) then release episodes once per week until (potentially) June next year. Is that ok, or would you prefer them more sporatically like ive done in the past? Legitimately interrested to hear your opinion. Thanks!

[@dvbs3608]

Atomic Frontier sounds like a good idea 👍🏼

[@nightmare5479]

This channel just keeps getting better with every video they upload. 👍

[@Selandr]

Nice one! Looking forward to the science behind the liquid breathing they showed way back in "The Abyss " movie in 1989!

[@whoknowsmehere2624]

That scene in the abyss was real. They acquired the liquid from the navy to shoot that scene

[@benjaminbrewer2569]

@@whoknowsmehere2624 in the Abyss, the rat was real, the actor held his breath as the filled his helmet with liquid.

[@thefreediverjohn]

This channel is awesome! Most other channels in this genre will make videos that barely scratch the surface of a topic, and they'll just draw out their videos with a bunch of useless crap. Real science, you're different! As a diver myself who has even made videos on this topic specifically, I learned something from this upload! Thank you, and please keep the videos coming!

[@realscience]

Thank you! I am a rescue diver and so this topic is something that I've always wanted to explore more. Glad you enjoyed it!

[@yumcha16]

been waiting so long for some proper information on liquide breathing. cant wait for part 2! :D

[@latoo97]

20 meters would be 3 atm, not 2. One atmosphere of pressure is at sealevel. 2 at -10 meters, 3 at - 20 meters.

[@08Farfar]

@Latoo Ootal, thumbs up to that hehe Another thing that was a bit off was that regular air is 78% Nitrogen and 21% Oxygen and 1% other gases but I guess someone didn't get the memo and had to adjust the math to 22% oxygen to make a 100% mix hehe

[@jeffscott3021]

Its 2 ATM....or 3 ATA ;)

[@seikibrian8641]

@@08Farfar Listen to what she actually said: "Air is made up of *roughly* 78% nitrogen and 22% oxygen." The key word is "roughly."

[@daviderimedio1085]

This channel is amazing, I’m watching all of your videos! Keep it up!

[@AtomicFrontier]

Awesome, well produced video on a great topic. Not enough Blob-Fish-People, but I guess there is still time in part 2! Keep up the great content

[@FrostNightVideoProductions]

Great video! Thanks for explaining the details of what causes the bends and nitrogen narcosis! I've heard about them before but never knew what caused them. I also never knew this much diving was done. I cant imagine having such extended shifts in such a scary environment.

[@ArealMrsSmith]

Great work! This answered all the questions I had about this.

[@chiaradina]

Utterly fascinating workplace. Wow. 5:47 Like space exploration. Unbelievable footage!

[@curiosityzero2151]

I find out this channel just recently. This is a hidden gem on KZbin. I am going to binge all of the videos on this channel.

[@energyben]

awesome video, can't wait for the 2nd installment!

[@GeneSv]

Liquid breathing does sound interesting, so far I don't know to much about it but it's basically this liquid that is just as saturated with oxygen as air is so if you 'drown' yourself in it you would be able to breath on, it's used to torture people. The main advangtage with this liquid is that there is much less gass buildup and that a liquid doesn't compress when put under pressure so the main cause of decompression disappears, of course you get a whole bunch of problems in return. Like, are you going to drown your divers every time they go to work? (does sound better than days of isolation tbh) And how do you keep the liquid fresh and circulating?

[@fr3zer677]

Amazing video! Very well done! Very interesting!

[@lukemcrae_]

Fantastic short film! Please keep this educational content coming

[@icescrew1]

Stephanie Sammann. Amazing narration. Writing and general presentation 👍👍Audio high quality.

[@jonas1015119]

I knew about saturation diving, but I had never considered that it would affect the voice like regular helium does. That has to be incredibly annoying after 3 weeks

[@rayhsetwo8594]

The divers don't notice it, in fact you get so used to it you can tune in to regional accents others are speaking.

[@CenarosNL]

Yeah it's all not so easy as in Subnautica. Super interesting video! Would love to see more videos about deep diving jobs and such.

[@YouTube_user3333]

Recreation divers limit is 40meters (130ft). Divers can only stay at that depth for 9 minutes before they go past their no decompression limit. Recreational diving usually try to stay away from NDL. Past this limit is termed “technical diving”. Which then starts into heliox territory. Great video

[@vandriwang4604]

can't wait to learn more about liquid breathing, this idea is so fascinating.

[@cowboygareth]

Best sat diving explanation by far! Keep up the great work. Sat diving has always been a curious subject for me, due to my passion for watches. There's a mechanism called helium valve on many professional diving watches(a HUGE topic for our watch lovers) specifically for the reason you mentioned. During long saturated missions, helium not only saturates human tissues but finds its way into normal watertight watches too, therefore during decompression a watch's built-up internal pressure could be so much higher than the environment, the crystal could pop out. If a watch was not specifically fortified for this kind of incident, it needs a dedicated valve to vent out helium during the ascend.

[@jmg2914]

Great video!! Awesome topic as well as educational!!!

[@Antarath]

Fantastic video. My father was a saturation diver in the North Sea in the 80's, 90's and early 2000' and I haven't really gotten into what my father did until recently and it's very fascinating. My mother and father divorced when I was 2 months old, but I still remember him never being home. Now I know why.

[@prakashrao8420]

Great video, keep up the good work guys

[@MaveenDass]

Speaking as a Saturation Diver..this video is quite spot on and educational for those curious on Saturation diving. Awesome video..cheers 👍

[@krasteller]

That was a really good video! One of the best explanations on the subject i have seen. Just curious about the 33 safe diving limit you mentioned for recreational scuba divers.where did you get that number and what was the rationale? Generally most recreational organizations put the max limit for recreational scuba at 40m. The first physical limit for diving on air is 56m

[@Natnatos]

33 is a general limit when you are diving with Nitrox (enriched air which contains less nitrogen). It’s a specialization that people do when they are going to dive multiple sequencial dives, it helps to reduce interval times between dives.

[@fungoose2195]

its 100 feet

[@fungoose2195]

well close too

[@foxylovelace2679]

Past 33m is 2 atmospheres of pressure, higher risk of nitrogen narcosis and you need to make more decompression stops on your way up. You need higher levels of training if I remember correctly.

[@stonebayrocker]

Nice video! Very good quality! 👍🏻

[@Aeyekay0]

Lol this made me think of the movie Men of Honor with Cuba gooding and Robert DeNiro. Interesting video, well done

[@michaelfrazia4569]

so informative...well done..explained in a way that is easy to understand

[@MrFi-es2ie]

Meanwhile in Subnautica... *Passing 100 meters. Oxygen efficiency decreased.*

[@MrFi-es2ie]

@@VeganAncientDragonKnight Interesting.

[@joeyknight8272]

@@VeganAncientDragonKnight wow

[@MrShadowpanther3]

I wonder how accurately they modeled it. Can you do rapid scooter assisted bounce dives down deep without incurring the penalty?

[@wv_]

40M is the limit for recreational divers with PADI, who do about 80% of all diver training. I believe some agencies like BSAC recreational (non-technical) is deeper. Nitrogen narcosis rarely effects people at 30M, I can’t notice it at all at 40M and neither can my buddy. I may have missed it but CNS oxygen toxicity didn’t seem to be mentioned and is more severe than nitrogen narcosis, nor the limitations of the human lung to breath gassed over a certain density due to venturi effect on the lungs (which limits depths for helium) - Dynamic airway compression. There is a great video by Dr Simon Mitchell on the DAN Southern Africa channel titled Respiratory Failure in Technical Diving Props for mentioning the US navy studies.

[@robodoge3004]

Thanks for the guide, Rock and Stone!

[@ArshMellow]

Waiting for part 2! Subscribed!

[@rckenigma4404]

great videos thanx! I can show these to my daughters and now grandchildren so they know what I did post military!!! Smiles

[@NKG416]

thank you for this amazing knowledge

[@drewlovely2668]

Drinking air sounds pretty cool, do you know when part 2 is supposed to come out?

[@thinkabout602]

????

[@matth3us]

It's not drinking air. It's more like breathing water, and it's as scary as it sounds. You can know that the "special water" is breathable, but you can be damn sure your monkey-flee-or-fight part of your brain will freak out.

[@seikibrian8641]

*drew lovely* It's out: kzbin.info/www/bejne/inqqdJd3Z75_r7s

[@Thicbladi]

matth3us it’s fight or flight

[@drewlovely2668]

@@Thicbladi flee flight same same. Don't critique everything that doesn't fit your narrative

[@lucastrebien2963]

Loved this documentary, very well explained. Would this explain why it's easier to go explore the space than to our oceans? I think it's at least one of the many reasons.

[@Dahxelb]

When you already knew about breathing liquid because you've watched The Abyss by James Cameron

[@bobbertee5945]

Dahxelb 1 atmosphere every 33 feet

[@surfside75]

😂👍

[@JustinSmith-bd8jy]

This was the best job I ever had! Wish I was still doing it, but it's hard on your family life!

[@yourileconte3989]

Can’t wait for the 2nd part !!

[@paulrobertssydneyscubadive91]

excellent description of how DCI can occur and effects on the body.

[@ybk6858]

this was incredibly interesting as well as visually pleasing!

[@hasinayari1116]

I literally just found out about liquid breathing and now you addressed it too

[@guusvandermeulen7210]

Very well made video. Respect!

[@akshayganeshkumar5645]

6:16 Well, react in a physical sense, not molecular alteration as in chemical reaction- as reaction is traditionally understood rather the gases dissolve in neuronal membrane lipid ie physically react.

[@thebloxxer22]

Looking forward to the second part.

[@Coffeeguyzz]

Excellent video. Two thumbs up for the people involved in the presentation. In 1975, I was one of 6 divers involved in the Predictive Studies IV experiment wherein we we set a then world record of 1,600 feet depth compression. Dr. Christian Lambertsen - the man who coined the term SCUBA - ran the operation. (Incredible bio of Doc Lambertsen on Wikipedia. Does not even tell half the story of this great good man). Bottom line, pressure per se has virtually no impairment on human depth potential. Other items, logistics, temperature management, extremely tiny margins of error, etc., make human dives over 800'/1,000' impractical with current technologies. Again, great video presentation.

[@straightXDspear]

Can’t wait for part 2!!!

[@DIYBiotech]

Awesome video. Definitely an underrated channel

[@jortand]

I really don’t understand why more people aren’t watching these videos they are so well made!

[@maccliff2115]

Very well done video with great information.

[@alabamacoastie6924]

I love your voice, it's both pleasant and authoritative.

[@rynonolte6604]

Truly breathtaking

[@cerval00]

Such a great channel, the content is so well written and portrayed. Keep up the amazing job!

[@tpespos]

I love this channel but I have a headache so I’m adding this to my watch later play list

[@tpespos]

I’m back and this did not disappoint!

[@noscopesallowed8128]

Careful you might have the bends! Hehe

[@knightclan4]

Outstanding video

[@DenisGobbi]

I'm studying to become an Italian OTS (equivalent of a commercial diver) and I must compliment you, this content is extremely detailed and accurate

[@ankur1610]

Why don't they simply breath pure oxygen?... What's the issue with that?

[@KingLucifer27]

@ ankur Oxygen toxicity.

[@prophetsspaceengineering2913]

The algorithm sucks. I overlooked the notification and it took days before it was recommended to me... I really like the video and the channel! Very interesting topic with fairly little coverage so far. This really should be more popular.

[@AbdulGoodLooks]

Yeah me too

[@deanwiseman3616]

My past involved training for Saturation Diving with a team destined for the Asian oilfield. My trainers were involved with opening the North Sea. This is deja vu. TYVM

[@writeforanimation]

This is so fascinating!

[@prashantdahiya711]

I learnt something new today, Thank You.

[@gaeb-hd4lf]

Great video and channel!

[@cherylsmith4826]

The science behind keeping those guys alive is impressive

[@thoraneh7365]

This gives a whole new meaning to working under pressure

[@bazoo513]

Very well done. Yes, saturation diving is not that different, psychologically and regarding risks, from space travel.

[@bigbeastmusicjamaica]

This lady's narration is awesometacular.

[@hymenoptera_2692]

Could you make a video on the future of submarines and deep diving suits

[@benmcreynolds8581]

I can't wait for PART 2!!!!!!

[@wezzmo5271]

kzbin.info/www/bejne/inqqdJd3Z75_r7s

[@marcussegerdahl5467]

Great video!

[@Nayo987]

Damn incredible