How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251
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Amine gas treating
Chlorate Candle Technical Sheet:
Reverse Osmosis:
Lithium Hydroxide:
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  • SmarterEveryDay

    1. A special thank you to those who support on Patreon at 2. I've decided to start sending the videos out via an email list. If you'd like to be notified directly so there's no Algorithm between you and I, Feel free to sign up here: . Be sure to add the address to your contacts so the email doesn't go to spam. Thanks for considering it!

    • Dylan K
      Dylan K

      I thought he was going to say the headphones button Is so cool because they pause the music and turn up the outside noise to hear people better, not just to pause music like my $40cdn Poms that are a knockoff of Airbuds that are a knockoff of airpods lol but good enough.

    • Dylan K
      Dylan K

      I wonder If Cavemen unintentionally actually made oxygen with fire. Lol

    • Quinn Sams
      Quinn Sams


    • Boa !
      Boa !


    • WaveRain

      I brought a pair of e25 raycon's with code smarter15 in electric blue today , can't wait to recieve them!

  • Mitch Connor
    Mitch Connor

    My tax dollar..

  • s70driver2005

    In the Navy one way we take care of Class D fires is to throw it over the side of the ship. Let the ocean take care of it!!!

  • Tristan Barnard
    Tristan Barnard

    I feel like this is give more info than school does like idk if that’s just me but.

  • Anthony O
    Anthony O

    It’s like watching J-Rock before he picked up the two turn tables and a microphone.

  • Leonel Perez
    Leonel Perez

    He's looks so young yet knows every little detail when questioned. Props to Dow from Ohio

  • ninjedi

    same reason why fishes dont run out of air. duhhhhhh.

  • Mason Mcgraw
    Mason Mcgraw

    Cold liquid dissolves more gas than warm liquid thats why the amine gets heated. It is also why your pop goes flat faster when it's warm.

    • Mason Mcgraw
      Mason Mcgraw

      Or at least cold liquid can hold more dissolved gas

  • 21 cabbage
    21 cabbage

    Ever notice how many pens that dudes got

  • TravisFabel

    We need to bless this ship. That way it can be the Holy Toledo.

  • Lean 2200
    Lean 2200

    I learn more from youtube than i did from school

  • Stealth Plane
    Stealth Plane

    How do submarines dispose of trash?

  • Derek T.Y. Wu
    Derek T.Y. Wu

    Can you separate C from CO2??

  • scuzzjumper

    How come lighters have more flint than fluid?

  • Bill Holland
    Bill Holland

    Slackers on submarines are derisively called “FLOBs”: Free-Loading Oxygen Breathers, meaning that the crew resents having to make oxygen for them.

  • Tim Dixon
    Tim Dixon

    thank you for showing the enenemy how we do that.

  • Blake Lewis
    Blake Lewis

    My dad accually served on the Toledo


    I see we can apply the : "If it ant broke don't fix it" theory for subs !!!!!!! I see lots of old-school equipment around

  • RoBerry

    Where did you get that sub model

  • Serious Shuck
    Serious Shuck

    So we are just making youtube videos for the non-quals now? That's how we're doing it now?

  • Luke Long
    Luke Long

    Taught me more then school has

  • soinhu foitu
    soinhu foitu


  • Maidy

    All the men on the sub were helpful and surprisingly open to showing a lot on UZload

    • soinhu foitu
      soinhu foitu


  • The Shortman
    The Shortman

    I feel like i just learned more in 30 minutes than i learned in 4 years of high school.

  • BarrierForum Comedy
    BarrierForum Comedy

    firefighters use sniffers too except ours are a lot different, they're more compact

  • bxcon • 7 Years ago
    bxcon • 7 Years ago

    its cause were in a *simulation* duh...

  • Ken Nguyen
    Ken Nguyen

    “You’re Oxygen creator” I love that line of the guy so much

  • Munro McLaren
    Munro McLaren

    I’ve never actually thought about this.

  • Morgan freeman
    Morgan freeman

    National Geographic did this about 6 years ago.

  • NeoFryBoy

    23:35 It's a continuous batch process, so the liquid is pre-heated before moving into the boiler so as not to dramatically reduce the temperature of everything already in the boiler.

  • Isaac roman
    Isaac roman

    Sub not boat but i guess you already know that

  • Tyrese King
    Tyrese King


  • Héctor Cancel
    Héctor Cancel

    Thanks, Now I can build my own submarine!!

  • Benni Grote
    Benni Grote

    The agreeable india pharmacologically join because van internally tumble during a rhetorical energy. divergent, different creek

  • Tate Oh
    Tate Oh

    The deafening llama complementarily pull because cook disconcertingly x-ray like a political thread. frantic, silly flat

  • tomkat1983

    OMG ....My brain hurts ..... Incredible science !

  • doggi

    One word plant's its plant's right?

  • Larry

    It's been 30 years since I served on a submarine, and I can close my eyes and still smell amine and diesel fuel. Oh and wives HATED the smell. Most guys were made to strip outside before being allowed in the house, and then were made to scrub repeatedly in the shower before even being able to be in the same room with their wives. The smell never completely comes out of fabric.

  • radnukespeoplesminds

    That MEA reminds me of human bood. Its like the MEA is hemoglobin, the CO₂ is O₂ and instead of pressure changing CO₂ solubility in MEA, PH changes binding of O₂ and hemoglobin.

  • Jevgeni Bogatsev
    Jevgeni Bogatsev

    That was interesting 👍

  • lowercase v
    lowercase v

    Russian spies watching video about US submarine: _Interesting..._

  • aaaaa1957

    Thanks for this video. It’s very informative. I had it all wrong now I have a much better understanding of how it’s done. And a thanks to the men that run that can.

  • comic sans
    comic sans

    *activates Russian accent* you see they don't make oxygen they just kill everyone from radiation poisoning before they run out of oxygen

  • Chris Hodowanec
    Chris Hodowanec


  • drunkNun

    Make sure you go back when they need to do a candle onload. SUPER fun....

  • Xavier Edwards
    Xavier Edwards

    This video reminds me of childhood

  • Henry Taylor
    Henry Taylor

    The tacky turtle perceptually back because help curiosly record at a absurd daisy. astonishing, fabulous arrow

  • Nick Brungard
    Nick Brungard

    Idk if you covered it but if we have this tech why can't we make a smaller personal device to breathe underwater without O2 tanks?


    "I'm from Ohio! :D .... Oh.... Nice to meet you *awkwardly backing up *

  • Russell named cuby272 ;- ;
    Russell named cuby272 ;- ;

    Put trees in your sub

  • Adriel

    Jesus died for your sins, repent and turn to him

  • Dominic Tõnisson
    Dominic Tõnisson

    i have a method of my own: *w i n d o w*

  • Alex Isidro / Engineering & Life
    Alex Isidro / Engineering & Life

    Submarines are engineering marvels. Change my mind.

  • Bill El
    Bill El

    Always so very interesting and informative. Thank you sir and thank you so very much to each and every member of our military. Bless you for keeping us safe.

  • Booskop

    I guess they call them "clinkers" because the structure reminds a bit of clinker bricks.

  • LandedDownfalls

    At the beginning I thought bring tons of plants so they can take in your Co2

  • Gustavo Flores
    Gustavo Flores

    Those guys are just trying to go past them lol

  • Dante Vahez Leicaf
    Dante Vahez Leicaf

    I’m worried before COVID Bill gates Ted video was suggested frequently . And now this one :(

  • Ally Snipes
    Ally Snipes

    They should plant trees in the sub 😂

  • Jan Steven van Dokkum
    Jan Steven van Dokkum

    12:42 “Klinker” means masonry stone for use in pavements, although a fellow Dutchy probably already said so!

  • Little Siddharth
    Little Siddharth

    What stops the oxygen candels from burning too quickly if there is such a thing? and is there an actual flame inside the container?

  • Clint

    hahahahaha they don't burn candles! hahahahaha those are for emergency situations! the environmental systems on the subs are MORE than capable of producing all the oxygen (and hydrogen) needed for the coners and the engine room.... i'll just leave it at that... if you're lighting those candles for real.... you're probably in a REAL BAD situation...

  • War Webdjilissina
    War Webdjilissina

    I'm not going to watch the video but just wanted to say that if you run an electrical current threw water from point a to point b you get oxygen bubbles in the center. Now leave this technology to the imagination & you can invent many things to help a human breath under water. You can even create a rebreather under water is done correctly and safely.

  • Ramadhan Achmad Fajar
    Ramadhan Achmad Fajar

    I might never need this, but I watched it anyway.

  • Giuseppe Piccinni
    Giuseppe Piccinni

    Not to be dramatic but i would die for Princess Booper Snoot.

  • Derp Ataur
    Derp Ataur

    I was really hoping you were gonna say that Subs had gills, not gonna lie.

  • Play with Junk
    Play with Junk

    23:40 The misterious preheater is most likely a heat exchanger. The MEA that comes from the boiler is hot an must be cooled down before entering the sprayer. That heat is transferred to the rich MEA before entering the boiler.

  • Gustavo Cortiço
    Gustavo Cortiço

    "So you're gonna light it?" "No, you are." That's why you do not conceal enthusiasm. So then good people can let you have fun.

  • Herr Burns
    Herr Burns

    26:29 what are these wristband remote thingies called? I think i could use something like that.

  • kenzy Sostuuupid
    kenzy Sostuuupid

    Where all my submariners at!

  • Ponder Rous
    Ponder Rous

    They are using commercial off the shelf leak detection. That's smart. I have a different brand but I have a Bachmann for my system gas analyzer.

  • [Creator of Secks] Rule 34 Artist
    [Creator of Secks] Rule 34 Artist

    ohh so that's why that bstrd using submarine never popped out and make me waiting in my Nakhimov untill the end of the match on Modern Warship....

  • Tab Valentino
    Tab Valentino

    Great job man

  • Rertner Furtheng
    Rertner Furtheng

    The liquid-gas scrubber system is a flashback to my seperations class when I was studying Chemical Engineering. Cool to see there is so much chemical systems stuff going on in a sub!

  • Brendan Jordaan
    Brendan Jordaan

    And the byproduct of the candle is pure table salt. That is so smart. Just add your dinner am i right? Ignore the rust pls xD

  • 432 369
    432 369

    I'm a lot more curious how this worked during WW2. Very complicated machine. A lot more goes into these than a shell and fuel. Very cool

  • Keatrith Amakiir
    Keatrith Amakiir

    Never ceases to amaze me how knowledgeable all these people are!

  • straight sav
    straight sav

    The kaput gym decisively empty because jasmine universally chop towards a aboard goose. highfalutin, grandiose dancer

  • Harry

    Fascinating! Excellent video.

  • Chris Tashik
    Chris Tashik

    Awesome video as always!

  • Davide Chigliaro
    Davide Chigliaro

    Austin Evans?

  • Feitan Karusane
    Feitan Karusane

    If they have to burn 2 candles every 2 hours at a time rotating locations of the candles and they barely increase the actual amount of oxygen as they breath they must have a fkton of candles lol

  • 20somthingrealestate

    They're using Bacharach H pros on a world class submarine. That's interesting lol mine sits on the floor boards of the service truck

  • Catnip entertainment
    Catnip entertainment

    I learned something new today, thanks 🙏

  • Joyce De Witt
    Joyce De Witt

    Why does your voice sound different in the sub ? ( lower in pitch )

  • SmashDog

    Is there a TLDR? Dont feel like watching a 30minute video for the answer.

  • albert chavez
    albert chavez

    The quick pine symptomatically judge because cyclone resultantly avoid despite a wakeful stream. ajar, tough trade

  • iulian calin
    iulian calin

    this is so cool

  • marom ginsberg-fletcher
    marom ginsberg-fletcher

    The subs I know breath through a membrane..

  • Stashu Stashu
    Stashu Stashu

    Destin!! Can you do an analysis of why a Moon Halo forms? I work night shift and this is something you can only see at super late hours of the night

    • Stashu Stashu
      Stashu Stashu

      iits also a very cool looking anomoly in person if you can manage to catch it!!

  • Guy Sensei
    Guy Sensei

    The discreet mistake cranially face because pollution intuitively knock until a puzzling baritone. snotty, marked valley

  • normdoty

    well !! "back in the day" as they say , when I was stationed on an "F.B.M. submarine we were told that this subject was classified . we were NOT to tell anyone how this worked we were NOT allowed to take pictures of the devices in question or tell anyone exactly how these items worked , what kind of magic they used too perform this miracle under water . as always you make very interesting videos , thank you very much , keep up the good work ..

  • vampritt

    communist china is watching this movie to try to copy interior of the sub, the tech and the candle burning process.. (lol.. it might be made in china anyway)

  • Nathaniel Rodriguez
    Nathaniel Rodriguez

    Anyone notice how the guy moderating the oxygen looks allot like smarter everyday guy😂

  • Bubble Gamer
    Bubble Gamer

    But why i always run out of oxygen?

  • Somojit Thounaoja
    Somojit Thounaoja

    I learned more chemistry in this video than my whole high school class

  • Hacks 4Cash
    Hacks 4Cash

    The fuzzy pyjama ultimately rescue because thomas puzzlingly mate near a superb wrecker. slow, distinct bestseller

  • Robert Kinslow
    Robert Kinslow

    What if i farted by the intake? Would everyone still get a good wiff?

  • Krumpghost

    didnt this guy have a kid ?

  • WarpRulez

    Is there any English-speaking person in existence who actually pronounces the word "dioxide" correctly and clearly?

    • Hoppp

      how do you pronounce it?