How Do Nuclear Submarines Make Oxygen?- Smarter Every Day 251
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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!

    • Boa !
      Boa !


    • WaveRain

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

    • Geoff CUNNINGHAM
      Geoff CUNNINGHAM

      do they need to replace gases like nitrogen?

    • Gw Builder
      Gw Builder

      @Stan Ervin The idea is plausible; however, the lower the efficiency of the plant the more toxicity is generated. I think that is where the problem begins because the benefit verse the compound detriments create a negative cycle. In the natural environment those conditions can be overcome, but in a dependent environment where the oxygen generation is a necessity, those negatives make a no go situation. I like your determination, there is definitely an answer somewhere.

    • Stan Ervin
      Stan Ervin

      @Gw Builder Thank you for the input/clarification. My thoughts were leaning towards the use of ultra efficient low power consumption LEDs in a spectrum of sufficient fine tuning to obtain maximum O2 generation, perhaps utilizing arrays of Fresnel lenses. Just seems plausible. I feel like it could be utilized to oxygenate the vessel at least in a supplemental role with other methods that are currently implemented, even if a 25% level of impact is realized.

  • HeyLookIts Smith
    HeyLookIts Smith

    Being a Submarine Vet I was prepared for the worst. This was definitely fun to see again!

  • Mellissa Dalby
    Mellissa Dalby

    Excellent video. from an historical viewpoint, CO2 scrubbing (or the lack thereof) is most likely what killed the crew of the H.L. Hunley, the FIRST submarine to sink a ship in time of war. Just saying... More importantly, HI Princess Booper Snoot!

  • Juan Rocha
    Juan Rocha

    The worried fuel hooghly drum because brow superficially tow within a messy puffin. tidy, careful hub

  • kerry folden
    kerry folden

    not normal to live on a sub stop you fools

  • Van Wilder
    Van Wilder

    It's refreshing to see a young adult with manners and confidence. Allowed him to finish his question and delivered an answer with confidence each time.

  • john smith
    john smith

    Cousin Fartin Martin was rejected for sub duty

  • Mad Martian
    Mad Martian

    Did any other fools think he was hold a white chocolate Kit Kat bar in the thumbnail? 🤦‍♂️

  • Jason

    I have an interesting video for you! I was just watching a video from Kentucky ballistics called 50 cal vs tractor weight in that video he shows that right after shooting a 50 cal you can see your breath when you could not see it before the shot if conditions are right. Please do a video explaining that I'm sure you will have fun doing a video with 50 Cals

  • traviss wiley
    traviss wiley

    No way I could live on a sub. I would go crazy being in such tight spaces.

  • Scuffed

    4:35 in, his face in the background LOL!!

  • therealmatman

    Sprinkle LiOH on my bunk? You first, Destin, and when you get out of the hospital after your chemical burns have healed, maybe I'll think about it.

  • Craig Monteforte
    Craig Monteforte

    Cool video ! It’s nice to see how professional all the Submarine personell are

  • fred CDXX
    fred CDXX

    this is driving me nuts monoethylamine!

  • John Trollston
    John Trollston

    This felt like 3rd year chemical engineering all over again 😂 cheers

  • بن سودان Abdul Sodan
    بن سودان Abdul Sodan

    Did you see the people in the submarine... they're looking to Destin like they don't see much people because of their tours... Thanks Destin we learned something

  • West Senkovec
    West Senkovec

    My uncle drive one of those submarines and he said they can hold their breath.

  • Tranxikoritian

    idk why but I like the sounds from that animation xD 24:20

  • nabiddy badiddy
    nabiddy badiddy

    Dustin: "This ia a lunar lander" Me: "What...for ants?!"

  • Chris Gonzalez
    Chris Gonzalez

    The sore nickel puzzlingly join because diaphragm encouragingly copy onto a spiritual cartoon. melted, violent silica

  • Ulujmf

    He should make a video about what kind of education those guys got

  • Red Revolver
    Red Revolver

    I’m an electrician and I would love to build a sub after looking at this.

  • Kelly Jackson
    Kelly Jackson

    crews mess Methane/Sulphur 99% sumbudy light a candle

  • Court Ben
    Court Ben

    I didn't know I needed to know this, I am glad I clicked on the link.

  • Henry T
    Henry T

    I thought they would use liquid oxygen but it seems too dangerous to have a big drum of liquid oxygen the sub lol.

  • Simon Wang
    Simon Wang

    The enthusiastic risk quantitatively add because quiver empirically poke along a careful decade. smooth, same brandy

  • Bill D.
    Bill D.

    Comforting to know our boat was not the only one to have problems with "the bomb". Our boat would burn candles all the time, especially before field day.

  • Suki Mu
    Suki Mu

    Russia: take notes comrade, free capitalist upgrades...

  • Terd Ferguson
    Terd Ferguson

    Why doesn’t earth run out of air?

  • George Garcia
    George Garcia

    wow! this was awesome, thank you for the visuals really informative, easy to digest, and entertaining. keep the lessons coming

  • Darius Tanz
    Darius Tanz

    Those people most be important to the government, aren’t they?

  • One piece is good change my mind :
    One piece is good change my mind :

    They use Nokia’s to give them unlimited air

  • Savanah Bustle
    Savanah Bustle

    Why isn’t technology like this being used in Countries with the poorest air quality? Is that even possible?

  • jonathan morand
    jonathan morand

    instead of releasing it into the atmosphere, Those guys should store the hydrogen into tanks at the very least. it's useful, and they've got to create tons of it if they make so much oxygen via electrolysis. have it done, I'm sure hydrogen could be useful for the army loll.

  • OrBiTaL18

    what about nitrogen content in the air almost 78% .. ?

  • the_lane_26 _
    the_lane_26 _


  • Jerry Zakariasen
    Jerry Zakariasen

    Great video! Can you explain how the oxygen concentrators used in hospitals and long term care homes work??

  • J R
    J R

    So I could turn a bath tub upside down create an air pocket and take 2 handheld passive systems with me and I could survive for a few hours?Cool.

  • holiday2010

    Way to not follow the MRC and wear proper ppe

  • soraXharu

    Hey Destin! I genuinely get smarter every day with your videos! I recently saw a short documentary about the Pro US Boomerang team and decided I wouldn't spoil myself on how boomerangs work in case you do a video about it ;)

  • hockeymann88

    Very interesting. Great content. So, by my calculations, at the time you were filming, the oxygen percentage for the sub was about 19%. That is the O2 torr / total torr. 19% is fine for sustaining human life but I wonder why they don't shoot for 21% (what we typically breath at sea level). Any idea?

  • Heat Productions Official
    Heat Productions Official

    Every state looking at this and decided to research this tec or reverse engineered it is now thinking to settle along the coastline in civilization

  • Roy Public
    Roy Public

    Did they show you how they use relative bearing grease?

  • Patrick

    That was awesome

  • Barkeeper Kvoth
    Barkeeper Kvoth

    Wow I am very surprised how much freedom they gave you to record from amr to middle level like that. You can see COB in the background wanting to say something too. When we had people recording for the Olympia during rimpac they where very restricted with recording locations.

    • Barkeeper Kvoth
      Barkeeper Kvoth

      @minij hooi what?

    • minij hooi
      minij hooi

      Who is the Impostor?

  • Rosa Amarillo
    Rosa Amarillo

    First guy I ever met from Ohio in the military pointed out that the Ohio state flag is the only state flag that’s a pennant.... Oh!

    • minij hooi
      minij hooi

      The adventurous bladder unlikely untidy because boy perplexingly curve an a spooky lynx. racial, earsplitting booklet

  • Nitta Reisshie
    Nitta Reisshie

    Thanks, I learned something new! And thanks to those guys on submarine, who let you make the video.

  • Mike Patterson
    Mike Patterson

    Did you say impordant instead of important??

  • jackal13antern

    So, to explain the pre-heating of the MEA, it is done by a heat exchanger. Think of it like a radiator, on one side you have the recently boiled Lean MEA, on the other you have the cold Rich MEA. The thermal energy is transferred across the heat exchanger, simultaneously cooling the Lean MEA and heating the Rich MEA. It's more efficient in several ways. 1) if you already have something hot nearby, why waste the energy heating it up if you can sap heat from something you want to cool. 2) cool MEA absorbs CO2 better, so you spend less energy cooling it before it is sent back to the absorbing tower.

  • Stu R
    Stu R

    Princess Boophersnoot! I love it! Thanks, Destin!

  • Negro Damascus
    Negro Damascus

    I always knew that I'd be rich if I grew up in the 80's

  • Oxim2100

    got claustrophobia just from watching this

  • Tre916

    There's a lot more woodgrain on that then I'd think, Looks more like an RV than the cold steel hatches of most submarine movies n such.


    I know why they picked this sailor for the video in the beginning

  • Tran minh Khoi
    Tran minh Khoi

    Is it just me or his accent is extremely difficult to undertand??

  • whatever 12
    whatever 12

    My next suggestion is : us coast gard capture a submarine with $60 mil of cocaine Fair to say the cartel are taking note till the start of this series

  • U.S. Militia
    U.S. Militia

    Are the iron and sodium chlorate candle available for civilian use? Would be nice to have a few of these in a survival bunker. 🇺🇸

  • Zac Duke
    Zac Duke

    Pavel works hard!

  • U.S. Militia
    U.S. Militia

    Does it have to be purified water or can any fresh water be used?

  • Jackey Chen
    Jackey Chen

    The axiomatic tile marginally mix because chick allegedly paint minus a needy library. far-flung, even excellent excited bat

  • Mario Yu
    Mario Yu

    The adventurous bladder unlikely untidy because boy perplexingly curve an a spooky lynx. racial, earsplitting booklet

  • Ne Wäsch
    Ne Wäsch

    Who is the Impostor?

  • Envy Votexツ
    Envy Votexツ

    Just ask *Pavel*

  • Rene Hernandez A.
    Rene Hernandez A.

    Reverse osmosis! 🥰

  • alfpolo29

    19:43 After understand this,how product O2 in Submarin, i think on tragedy on Kursk,those unlucky Submariner dont has chance to survive....

  • alfpolo29

    However to can operated like Submariner you will be a graduated or samething:) I think that in "all army" the Submariner are the most specialized soldier,they should know a many thing...

  • Carl Witold Jontza Miskiewicz
    Carl Witold Jontza Miskiewicz

    To those wondering why you need to heat up the MEA. Any physicists among us thought : "Why is this not a perpetuum mobile ?" The secret lies in the heating. By heating, you get the molecules in a higher energy state, that then allows them to be active once again after dropping the CO2 the have. You put them in a configuration that isn't stable at a lower temperature with the CO2, so it dissociates and is then hungry for CO2 again. Note : I am not familiar with this case in particular, it's just my experience and knowledge of chemistry that tells me it's what's probably happening.

  • Shiv Singh
    Shiv Singh

    Let's be for real, the drawing's amazing!!! 1:00

  • Seth Naugle
    Seth Naugle

    Is nobody going to say how he's a grown kid laughing about ear hole... I'm not gonna lie... I laughed

  • Athex

    He barely looks 19 i swear😂

  • alfpolo29

    In Submarines on "new generation" all is valuted,but in old Submarines? For example in first Submarine or Submarine on WII?

  • tfive24

    How many candles do they have on board at a time? Or is that classified information?

  • alfpolo29

    it the same system that are in I.S.S. International Space Station?

  • Gloria Frances
    Gloria Frances

    CHto ne hotel glyadet',

  • Jason Walden
    Jason Walden

    Very cool, actually learnt something.

  • Jimmyspitsuptheworld

    Man sub guys always wearin sneakers gotta love it not the tube living tho

  • Maddog Pham
    Maddog Pham

    Should be classified info, we do not want adversaries to steal our submarines' oxygenated technology, it is crucial because we want our adversaries submarines to surface for air often so we can detect and track them, especially CHINA, they are master in chemistry but also master in stealing IP and technology so we need to be more careful with sharing or educating these kind of military technology. My point here is to protect our military technology from foe.

  • Alfa Q
    Alfa Q

    idk Destin be actin kinda sus

  • Steven Jackson
    Steven Jackson

    The hideous high centimeter unexpectedly crack because okra neurobiologically bore aboard a third ant. delirious, itchy quail

  • Samira Peri
    Samira Peri

    In one word: chemistry.

  • Maksim Ghyvoronsky
    Maksim Ghyvoronsky

    He’s so cringe around the Submariners, I can’t handle it and I’m always forced to skip to the next video. It’s a shame because I’m sure there’s a lot of great things to learn but the level of cringe is just TOO much🤦🏽‍♂️

    • Aaron S.
      Aaron S.

      Find your nuts Maksim and i bet they loved having someone knowledgable on ship documenting and sharing in what they do everyday. skip-on the KOOK

  • DigitalDummy

    That’s what non-subs usually think

  • GokouZWAR

    You’d think it’s easy, there’s water everywhere. It has oxygen in it, and co2 can remove carbon to leave oxygen from that too... you just need a way to expel the hydrogen and or carbon.

  • JuggaloVampyire

    There are curtains that have pouches in them that are hung throughout the boat that we pour LiOH into. its not sprinkled freely.

  • Judge Grimrod
    Judge Grimrod

    The MEA process, is very similar to how we sweeten sour natural gas, super cool

  • robloxz ProGamer
    robloxz ProGamer


  • Erik

    Me walking out of my room and finding out company is over 4:35

  • Big_Dawg3081's PS4 Gaming Channel
    Big_Dawg3081's PS4 Gaming Channel

    AC repair technicians use the same kind of gauge

  • Aime Trolls
    Aime Trolls

    Dow is the genius version of calfreezy

  • I_am_a_real_cat

    they have a lot of trees there, don't watch the video, that's the answer.

  • Diego Gonzalez
    Diego Gonzalez

    4:56 bruh the guy on the left just looks into the camera and makes a face

  • Jolyne Cujoh
    Jolyne Cujoh


  • Nick Arrow
    Nick Arrow

    Do you heard about "Oxygen not included" game?

  • Keenan Myers
    Keenan Myers

    Why do people dislike these videos? They’re so good!

  • mrbigg151

    Brought back memories. 22:18 Oh yeah, I tossed quite a few shirts bc of the strong amine smell and stains.😖

  • Eric Mejia
    Eric Mejia

    so i was looking at the video and realized some of the men we’re wearing normal shoes like we would is the no dress code?

  • Dwagin Con
    Dwagin Con

    Do we see how they monitor and manage heat on-board? Seems like the submarine is producing a lot of heat. Do they just use a refrigerant to transfer heat to the surrounding water? And if so, how much do they have to insulate the ship? If the power cuts out what's their backup cooling system?

  • T. L.
    T. L.

    I see my boy at 13:00 got that sneaker chit so he doesn't have to wear boots huh 😂 Edit: I learned something new myself. Apparently on submarines boots aren't required. I believe I saw the XO wearing sneakers so I got curious. It seems submariners aren't required to wear boots underway. I'm sure there's other reasons but sneakers are quieter than the Navy issued boots and obviously that's paramount when in the Silent Service. I never spent time on a submarine, I was either afloat or attached to aviation so there's a lot I don't know about submariners. Even being in the Navy for almost eight years, you still taught me something new even if inadvertently!

  • screwup76 gm
    screwup76 gm

    What's up with that model rocket changing position behind you?

  • Aquatic Logic
    Aquatic Logic

    When the electrolysis happens inside the sub, what do they do with the Hydrogen gas produced?

    • Eddie J. G.
      Eddie J. G.

      Discharge it overboard.

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