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!

  • hoodley Benjamin
    hoodley Benjamin

    2:05 "Nice to meet you!" "Love you too"

  • Miro Korinek
    Miro Korinek

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

  • Oscar Ayala
    Oscar Ayala

    Dow is very well at his job he’s so cool

  • stevo7770

    Yo, bein on a submarine sounds like a bit of work

  • Shawn Clarkson
    Shawn Clarkson

    What are you going to do when you look into the facts and not someone else's theories or so called facts and you find out we don't live on a ball flying through space at over 1 million mph and around the sun at 666000mph and spinning at 1,000mph and going through the milky way at 500.000mph 😆? You honestly put all your time into that lie? I'd look into other facts sir. Best to you.

  • Shawn Clarkson
    Shawn Clarkson

    Either a liar or not smart.

  • David Eddy
    David Eddy

    I wasn't expecting how low tech everything would be...analog controls, burning the candles. Oh yea our O2 system is down. No problem we'll just burn these candles we can't put out if something goes wrong.

  • Brew Sauce
    Brew Sauce

    If lithium hydroxide is a strong base like sodium hydroxide they probably wouldn't want to spread it on the sailors bunks...

  • I am The one
    I am The one

    “I wonda...scratch scratch”

  • Younoki

    Im not a scientist or an engineer, but all you have to do is plant a tree, and BOOM, free air

  • af24us af24us
    af24us af24us

    @5:20 Bachrach sniffers are deployed on Toledo Class Submarines - Is the Bachrach Marketting team listening ? :-)

  • DJ J
    DJ J

    The axiomatic customer unusually itch because humidity immunohistochemically wriggle below a lumpy velvet. elite, nippy charles

  • Benjamin Kennedy
    Benjamin Kennedy

    Hey I saw a cup from Bass pro shops

  • Space Cat
    Space Cat

    How long can the submarine hold without needing to refill fuel and stuff

  • Space Cat
    Space Cat

    I have been in a submarine before but its smaller and not active with old equipment

  • E P
    E P

    AmAZINg! god bless those guys! thanks for your service!

  • Space Cat
    Space Cat

    I think that the sea plants ane life havent loaded it havent generated.. *Game Loading...*

  • tydeze1

    So when do we send Dustin to the ISS? lol

  • Brian Huntington
    Brian Huntington

    WOW!!! Who comes up with somthing like that??? I mean, what accidents had to happen for someone to figure out burning these chemicals produces oxygen, and this chemical takes carbon dioxide out of the air????? Science is sooo much fun!!! I love your channel!!!!

  • imp3r1alx

    Does the Lithium Hydroxide never run out ?? i mean keep scrubbing co2 like forever ?? it's impossible right.. so what humans do with the leftovers ??

  • Plazma Pufferfish
    Plazma Pufferfish

    So youre telling me this whole system is completely reliant on purifying sea water?

  • Roennei

    “Every 2 hours” thats a lot of candles to store.

  • Dalton Trinklein
    Dalton Trinklein

    This is honestly pretty freaking cool👍

  • A M
    A M

    After 8 mins I forgot the title of the video.

  • Dave Hergert
    Dave Hergert

    Need to know, what diagraming tool was used to create the MEA scrubber system animation ?

  • ACE

    i like how the crew were like seeing destin and just like nope other way LOL


    You learn more from this channel than your whole life through school

  • Jozef Behran
    Jozef Behran

    23:37 The explanation is simple. The "amin" wants to be fizzy when it is cold but it wants to be flat when hot. So after the amin is saturated with CO2, it is heated up, which causes it to release that CO2. That is why the tower is called "boiling tower" because the CO2 is boiled out. This results in gaseous CO2 and the lean amin. The gaseous CO2 is pumped off by that compressor, the lean amin is cooled off and fed back to the absorption tower, where it completes the cycle.

  • 7-2 offsuit
    7-2 offsuit

    I feel bad for Dow. not sure if he's nervous or just socially awkward and was forced into a situation for this channel. You can clearly see he wants no part of this youtube film crew

  • Dylan Nance
    Dylan Nance

    Crazy how the only way to live is to purify the water. For oxygen and pressure.

  • Viking Excavating
    Viking Excavating

    I thought they had gills

  • Lord Farquar
    Lord Farquar

    Hey destin can you make a video if you havent already on how much nuclear vehicles mainly nuclear submarines, I'd love to see it and learn about it, I'm sure I could google it and do my own research but I'd love to watch you do it, plus I'm sure alot of your viewers are wondering as well .

  • Rodney J.
    Rodney J.

    Nuclear submarine deep dive! Lol nooice!

  • WarpFactor999

    CO2 scrubbers and H2/hydrocarbon burners are the part most people never hear about. The other two significant factors are the carbon filters in the fan room to absorb all of the farts and the electrostatic scrubbers that keep the particulates out of the air. Is it pure air? Well, after 3-4 weeks out in a sealed tube, when you pop the hatch and ventilate the boat, you can literally smell every fish in the sea.

  • Desjardiniii

    I was wondering why you couldn’t use the CO2 system in a way to burn off the Carbon, leaving oxygen.

  • coronavirus

    KAPITAN -Paval

  • Exphoria_

    Would it be possible to build an air tight room and live in it with a single tree, of course with all the necessities, except oxygen, would the tree itself be enough to keep someone alive if they had everything they needed

  • 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.

    • Curtis Kretzer
      Curtis Kretzer


  • 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 KZit

    • 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!!

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    Benni Grote

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    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.