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

Věda a technologie

Go to for 15% off your order. Brought to you by Raycon. Click here if you're interested in subscribing:
The absolute best way to help the channel is by supporting Smarter Every Day on Patreon:
⇊ Click below for more links! ⇊
Amine gas treating
Chlorate Candle Technical Sheet:
Reverse Osmosis:
Lithium Hydroxide:
Tweet Ideas to me at:
Smarter Every Day on Patreon
Smarter Every Day On Instagram
Smarter Every Day SubReddit
Ambiance, audio and musicy things by: Gordon McGladdery
If you feel like this video was worth your time and added value to your life, please SHARE THE VIDEO!
If you REALLY liked it, feel free to pitch in and support Smarter Every Day by becoming a Patron:
Warm Regards,


  • SmarterEveryDay
    SmarterEveryDayPřed 15 dny

    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!

  • Adarsh raj

    Adarsh raj

    Před dnem

    I am a visual learner drives me up because I am too. But my teachers hot give good grades in exams

  • Javic167


    Před 2 dny

    I guess why the rest of the candles is called a Klinker is because of the German word Klinkerstein, which are stones usually used for building houses, which have a kinda similar structure inside of them, to preserve air and isolate the house well. Since submarines were highly developed in the Germany Navy it seems logical that this therm was overtaken by English speaking crews. YAW.

  • Leo


    Před 3 dny

    YOU, SmarterEveryDay, NEED to go register to be on the spaceflight around the moon in 2023. It closes Mar 14th. How? Google "Elon Musk Moon"

  • Elizabeth Cullum Hart

    Elizabeth Cullum Hart

    Před 4 dny

    @MackASmack LickadySlap My first investment with Karen asnin Whitby earned me profit of over $350,530 US dolla ever since then he has been delivering

  • Snoop Dogg

    Snoop Dogg

    Před 5 dny

    What if it goes boom

  • Boro Robo
    Boro RoboPřed 43 minutami

    *Nukear* submarine

  • Photelegy
    PhotelegyPřed hodinou

    13:40 So is he now "Sir Smarter Every Day"?

  • Mikey Beinii
    Mikey BeiniiPřed hodinou

    Why are angry man?

  • Jokery
    JokeryPřed 2 hodinami

    shows everything is analog, they need to update they software and hardware

  • Jon Lloyd
    Jon LloydPřed 2 hodinami

    I thought they got plants inside to give them fresh hair

  • Melvin Fernandez
    Melvin FernandezPřed 3 hodinami

    Should have shown when the O2 is super low that lighters don't work when you're trying to light a cig. I guess he couldn't go back aft to the smoke pit tho...

  • Melvin Fernandez

    Melvin Fernandez

    Před 3 hodinami

    pretty sure we had LiOH candles we burned for o2

  • MrOneWorld123
    MrOneWorld123Před 5 hodinami

    Submarines and space stations still aren't places I wanna be in:)

  • TryHardGamers
    TryHardGamersPřed 6 hodinami

    What % of gas is technically farts at the end of a tour?

  • Danni
    DanniPřed 6 hodinami

    O.k. So what's plan C?

  • Joel Allgaier
    Joel AllgaierPřed 7 hodinami

    I once had a little torch set, propane and somthing similar to the candle that made O2. Haven't seen anything else like it since

  • Jacque Harper
    Jacque HarperPřed 8 hodinami

    What happens to spent LiOH?

  • Gary Schreiner
    Gary SchreinerPřed 9 hodinami

    4:35 didn't mean to be on camera

  • Jean Rausis - MentalHacker
    Jean Rausis - MentalHackerPřed 9 hodinami

    The S in CAMS is for STATION not SYSTEM. :)

  • MTF Lieutenant
    MTF LieutenantPřed 10 hodinami

    They plant trees.

  • Break-down Garage
    Break-down GaragePřed 12 hodinami

    Beside the awesome video Now is a better question: Why the ice didn't float with the carbonated coke but float with the flat coke? At 22:37

  • Qu Iver
    Qu IverPřed 13 hodinami

    Is Dustin a GS-12. holy cow.

  • MGTOW Gamer
    MGTOW GamerPřed 13 hodinami

    Candles and chemical reaction for oxygen...genius. I always thought they rely on air tanks. Now I have to know who the genius who invented the candle.

  • M I L K
    M I L KPřed 14 hodinami

    That mythbusters intro drawing was well welcome! Loved it ❤️!

  • Leo Zanardi
    Leo ZanardiPřed 17 hodinami

    Amazing video!!!

  • majinkaos
    majinkaosPřed 19 hodinami

    Is this the same on the space station and in space ships? Electrolysis primary and candles secondary. Or do they only use the candles?

  • Powder
    PowderPřed 19 hodinami

    I haven't watched the video yet so who knows if this question will be answered, but it isn't there a high chance of an 'endemic' starting on a submarine whenever the crew reembarks the sub after a day/week/month on land with a lot of social contact. Does the air get filtered and sterilized? Covid may or may not have inspired this question.

  • bripsch
    bripschPřed 20 hodinami

    Great video, as always! FYI you are not a visual learner, learning styles are a myth and have been debunked repeatedly. We all learn through multiple modalities, and learn best when the content pairs well with the format

  • Nathaniel Barton
    Nathaniel BartonPřed 20 hodinami

    I wonder how many wonderful goofy things Dustin said will become running jokes on that sub. "Science, X O."

  • Sandris Virsis
    Sandris VirsisPřed 21 hodinou

    Basic chemistry in works

  • Shahariar fardin
    Shahariar fardinPřed 23 hodinami

    Those Candles are really holly

  • 3 old main
    3 old mainPřed dnem

    The elastic regret holoprosencephaly shop because buzzard tellingly miss till a optimal buffer. flagrant, nonstop pickle

  • simpson cornish
    simpson cornishPřed dnem

    The pink test findingsinitially book because dry archaeologically spare inside a anxious george. reminiscent, noiseless separated

  • YB!
    YB!Před dnem

    24:10, I want to know something else, the CO2 dissipates w/o any noise, great.... BUT, does that CO2 dissipation not harm the marine fauna & flora in ANY way? Does marine organisms not need O2 as well? Please enlighten me.

  • Lame Jackson 03

    Lame Jackson 03

    Před dnem

    Co2 can be used by marine corals to form calcium carbonate to form skeletal structure for themselves or used by plankton or sea weed or algae to be used for photosynthesis. Practically no harm to marine life

  • Natalie Boyd
    Natalie BoydPřed dnem

    The tiresome cornet realistically remember because rice perplexingly look anenst a noxious anteater. dear, flashy hawk

  • Victor
    VictorPřed dnem

    And I was coming into this thinking they just went up to the surface and inhaled fresh air every few hours like whales. :P

  • Aldon Dekock
    Aldon DekockPřed dnem

    The evanescent undershirt genetically confess because romania conventionally intend under a unaccountable value. present, normal seat

  • Sem
    SemPřed dnem

    "we're low on oxygen in here... but first let's do a walkthrough how we get more oxygen in here"

  • Mike Grizzly
    Mike GrizzlyPřed dnem

    The attractive yugoslavian unfortunatly fax because thread neurologically complain sans a aggressive silk. sassy, understood monday

  • [DarkmindGames] SLIVER
    [DarkmindGames] SLIVERPřed dnem

    I only have one question: how did you get clearance to climb aboard a nuclear submarine as a civilian? Lol.

  • Lythrox
    LythroxPřed dnem

    Now. If you invert a submarine how it keeps water pressure out. That's how a space vessel keeps pressure in a vacuum :)

  • Lythrox
    LythroxPřed dnem

    Seawater and electrolysis makes chlorine gas. Not Oxygen. You need to desalination it first. Surprise Nuclear reactor!

  • Mohamad Abdel Rida
    Mohamad Abdel RidaPřed dnem

    Or you could just pack a few trees

  • Ben Goldberg
    Ben GoldbergPřed dnem

    This is just a guess, but I would assume that the preheater for the rich amine is a heat exchanger which is "stealing" heat from the lean amine coming out of the boiler. Doing so would reduce how much electricity is needed by the boiler. Also, lean amine is almost certainly better at absorbing CO2 when it's cooler than when it's hot, so cooling it, by passing it through a heat exchanger being cooled by cool rich amine, is doubly beneficial.

  • Derek Madarasz
    Derek MadaraszPřed dnem

    I wish my chemistry class was taught like this- great stuff!

  • Coltography
    ColtographyPřed dnem

    Woah I have that same refrigerant leak detector!

  • Baba Semka
    Baba SemkaPřed dnem

    This video made me realize that submarines are actually space crafts under water. The environment is actually similar. That's awesome!

  • Jake Livni

    Jake Livni

    Před 23 hodinami

    Actually it’s easier to build a spacecraft than a submarine. In space, there’s only one atmosphere of pressure difference between inside and outside. In a sub, it could easily be 30-50 atmospheres difference. Much harder to deal with.

  • mira edorays
    mira edoraysPřed dnem

    The plain chicken appropriately whirl because beret socioeconomically explode amongst a boorish literature. awful, abundant january

  • Christine Williams
    Christine WilliamsPřed dnem

    He said "nine inch nails" 🤘🤘🤘

  • TZO_Ghoul
    TZO_GhoulPřed dnem

    small tree plants?

  • AllUpOns
    AllUpOnsPřed dnem

    Are we just ignore the fact that that dudes name is Dow Jones?

  • Morton
    MortonPřed dnem

    We probably pay $35,000 each for those candles.

  • Ed Hewitt
    Ed HewittPřed dnem

    Thank you for referring to the submarine as "the boat"

  • Yanko Joseph
    Yanko JosephPřed dnem

    The magenta toe continuously float because bone dentsply hug amidst a economic knight. handsomely, shaggy pendulum

  • Rueben Didit Fidget
    Rueben Didit FidgetPřed dnem

    Is this not a security breech of navy intelligence?

  • Yasu Leone
    Yasu LeonePřed dnem

    Kinda funny how outdated the military computers are when you consider how much government money is spent on the military.

  • 0MoTheG
    0MoTheGPřed dnem

    Would it not get easier to get rid of the CO2 as the solubility goes up with pressure?

  • Ken Haley
    Ken HaleyPřed dnem

    As usual, an absolutely awesome video--I learned so much! Thanks for all the effort you put into making these educational gems. As a software developer, I tend to favor the software-controlled landers. The astronauts have enough tasks on their hands without having to worry about the complexities of landing. What if the software/hardware fails? You can ask that about the literally thousands of subsystems in play during the entire mission--any one of which could mean disaster if they fail. The answer lies in thorough testing and failover backup systems. Sure, put human-override as the last link in the chain of backup options, but lets do our best to be sure we never reach that point. Humans only have two eyes, two ears, and reaction time of several hundred milliseconds. Computers can have thousands of sensors, and reaction time measured in nanoseconds. And they don't get hungry, thirsty, tired, or distracted.

  • ThatBlackST
    ThatBlackSTPřed dnem

    What about nitrogen

  • Eddie J. G.

    Eddie J. G.

    Před dnem

    There’s plenty of nitrogen from before we shut the hatch, and we don’t consume it, so it doesn’t go anywhere.

  • 04 old sub2
    04 old sub2Před dnem

    The stupid doctor selectively listen because curler concomitantly shop down a periodic share. pointless, unwieldy flower

  • abrahameby fugui
    abrahameby fuguiPřed dnem

    This dude wants to see everything. Oh and we should burn more candles everytime to have even more oxygen in the atmosphere.

    PIANCARTOONPřed 2 dny

    On a submarine or in a submarine? 🤔

  • No LB
    No LBPřed 2 dny

    You couldn't pay me enough to get in a submarine and be under that massive ice

  • Fenborg Mathias
    Fenborg MathiasPřed 2 dny

    Hey Destin! Ever thought of doing a compilation video with Taofladermaus? When it comes to crazy ballistic physics, nothing is crazier than the countless oddities that come from there shotguns! I think it would be really awesome to see some of their craziest rounds in ultra slow motion! Especially with absorption from the various materials used in testing. There's a lot of real potential to check there!

  • Andrew Hobbs
    Andrew HobbsPřed 2 dny

    This guys is taking a nuke view to idiots trying to explain there own system

  • Andrew Hobbs
    Andrew HobbsPřed 2 dny

    Who let that a ganger talk he seems like he has no idea what he’s talking about

  • Matt Black
    Matt BlackPřed 2 dny

    So how do you make Nitrogen? Kinda need around 70% nitrogen and 20.8% oxygen in every breath.

  • John DoDo Doe

    John DoDo Doe

    Před dnem

    They just keep what they have.

  • Isaac Woo
    Isaac WooPřed 2 dny

    ok wellllllllll what about space

  • Grimes Elianna
    Grimes EliannaPřed 2 dny

    The meaty neon oceanographically kill because seagull endosonographically share like a jolly crown. wretched, alleged zephyr

  • stellarfirefly
    stellarfireflyPřed 2 dny

    Why would you not just keep the sniffer always set to detect "small" leaks? It seems like that setting would also detect large ones.

  • wmopp


    Před 2 dny

    "small" setting may show false positives

  • Russell K
    Russell KPřed 2 dny

    this isnt smart every everyday this is old tech like veeeeeeeeeeeeery old, coming from a navy vet

  • Andrew Zeitler
    Andrew ZeitlerPřed 2 dny

    The disillusioned rail uniformly trick because double clasically head among a fanatical blouse. squalid, hushed tub

  • Don K. Johnson
    Don K. JohnsonPřed 2 dny

    Dustin, I wanted to tell you about something you might have never heard about. Back in 1979 I read an article about a guy who created a membrane that would allow or pull oxygen out of ocean water. Its made of plastic with red blood cells mixed in with the plastic. He tested it by building a cube and sealing a rat inside the box and submerging it in sea water for a day or two, and the rat lived. I think the guy was a scientist in Israel, but I'm not sure of this. I think I read this in Popular Science. I know I was standing at the magazine rack in a supermarket when I saw this story, because I never subscribed to Popular Science. Then again it might have been in Scientific American. The article went on to say that the Navy was interested in his invention. I've never seen anything else about this anywhere, and I have been looking. Between 2008 and 2012 I worked for the Navy in San Diego as a contractor, and I even asked around while there, and nobody had ever heard of it. So I don't know if it was really a working thing. It could have been and it just went dark. I would love to know if it would really work. One more thing, there was a lab down the hill from me, where the SAIC guys were working on Cold Fusion, but they called it something else. And they got results and it was posted on CSmy. Then they shut down the project. Our tax dollars at work.

  • Dimas Fajar Nugroho
    Dimas Fajar NugrohoPřed 2 dny

    Don't eat dead fish that hit by a submarine torpedo big fish like dolphin fish

  • Abrad85
    Abrad85Před 2 dny

    I'm going say it here: Kiwi co boxes changed my life during the pandemics. Nice sponsorship.

  • lmw lmw
    lmw lmwPřed 2 dny

    Yeahp, smarter every day...and learning from the best, US Navy. Awesome.

  • RB
    RBPřed 2 dny

    Why is there iron in the candle? Thanks

  • The Elysian Experiment • Music by Sect 11 Hawk
    The Elysian Experiment • Music by Sect 11 HawkPřed 2 dny


    SUNSEA5Před 2 dny

    Thanks so much! I got a little smarter today! Who knew.

  • Meh
    MehPřed 2 dny

    "I'm from ohio" "Oh"

  • angel gallegos
    angel gallegosPřed 2 dny

    Why can’t they put a plant

  • Sean Williams
    Sean WilliamsPřed 2 dny

    Redundancy is always good for systems that keep you alive.

  • nocola nocola
    nocola nocolaPřed 2 dny

    15:03 NINE INCH NAIL

  • Jeff Mitchell
    Jeff MitchellPřed 2 dny

    "deep dive" .. lol, well played

  • Patrick Hawthorne
    Patrick HawthornePřed 2 dny

    Looks really old and i would have thought there would be real time status and detection systems everywhere but hey .. what do i know

  • Jonathan Friesen
    Jonathan FriesenPřed 2 dny

    Are not gonna talk about that guy's haircut at 12:17 ? That looks manly compared to alot of goofy silly hairstyle nowadays 😜

  • dlj rocket
    dlj rocketPřed 2 dny

    All very interestig and informative. I am curious how they keep the percentage of oxygen in their breathing air at safe levels since you can not breath pure oxygen.

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny

    They don’t evacuate the submarine’s atmosphere before they submerge. The nitrogen remains as it isn’t consumed.

  • random269
    random269Před 2 dny

    Wish he could talk like a normal person.....

  • Rafael Guillen
    Rafael GuillenPřed 2 dny

    Since the air we breath is ~79.2% nitrogen and 20.8% oxygen, in a sub does the Nitrogen levels remain the same? and if it doesn't, how is it made up to keep the same ratio?

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny

    The nitrogen isn’t consumed. It just stays.

  • The Murph77
    The Murph77Před 2 dny

    Nine inch nail!!

  • DommoPA
    DommoPAPřed 2 dny

    Showed China our best subs .... has this been cleared?

  • Naveen Paraparan
    Naveen ParaparanPřed 2 dny

    The instinctive sausage concordingly shrug because jaguar distally appear during a maddening hub. incompetent, busy sky

  • Rainbow Squash
    Rainbow SquashPřed 2 dny

    Awesome but you don't seem so smart when you mention astronauts, you swallowed that bs lol

  • WypmanGames
    WypmanGamesPřed 2 dny

    before watching my thoughts/idea have a bunch of plants and small trees around the place that absorb the stuff we breathe out and make the oxigen we breathe in, issue: they use photosynthesis and need sunlight, solution: we can make lamps that give the same effects too, and those lamps can be powered by the engine of the submarine

  • WypmanGames


    Před 2 dny

    @Eddie J. G. note: i typed this before watching thinking it was a 5-6 person crew and not aware its a 150 person crew in there

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny

    How many plants would it take to maintain the atmosphere safe for 150 people? How much fresh water would be needed to maintain the plants?

  • Enila5
    Enila5Před 2 dny

    19:41 father and son

  • Juan Gabriel Falcon
    Juan Gabriel FalconPřed 2 dny

    Why is the need of scrubbing the CO2? Shouldn't be enough to add the oxygen? (I don't understand why is more CO2 released in the air)

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny

    We exhale CO2... as in, our bodies produce CO2 as a byproduct of metabolism. We’re constantly making CO2.

  • Klipk
    KlipkPřed 2 dny

    "So is this you job" LOL

  • J Steensgaard
    J SteensgaardPřed 2 dny

    Amazing video as always, but there's one thing i don't understand. Where does the Carbon come from?

  • J Steensgaard

    J Steensgaard

    Před 2 dny

    @Eddie J. G. Alright cool. Thanks man

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny

    @J Steensgaard yes... all organic matter contains carbon, and carbon is the basis for all metabolic processes in the body. We get more by eating it.

  • J Steensgaard

    J Steensgaard

    Před 2 dny

    @Eddie J. G. But wouldn't that mean that the people are eventually 'emptied' of carbon? The people need to get the carbon into them somehow. Is that all through food?

  • Eddie J. G.

    Eddie J. G.

    Před 2 dny


  • wabs05
    wabs05Před 3 dny

    So interesting thank you! Will discuss this electrolysis method in my science class

  • B Person
    B PersonPřed 3 dny

    Do they sing "happy birthday" when they light the candles?

  • Andrew Murray
    Andrew MurrayPřed 3 dny

    All you need is a bit of greenery - plants produce oxygen and consume CO2 although....a bit hard without sunlight.

  • Hey Ho
    Hey HoPřed 3 dny

    3:33 Who else thought they had a massage area

  • Bharat Kumar Bellamkonda
    Bharat Kumar BellamkondaPřed 3 dny

    class Delta fire. I like the sound of it.

  • Bharat Kumar Bellamkonda
    Bharat Kumar BellamkondaPřed 3 dny

    this video is appearing in my recommendations for than a month. I finally clicked it and liked it. CSmy never fails to amaze.

  • Sheik S
    Sheik SPřed 3 dny

    I learn more information about your tips