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


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  • SmarterEveryDay
    SmarterEveryDay15 วันที่ผ่านมา

    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

    14 ชั่วโมงที่ผ่านมา

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

  • Javic167



    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


    2 วันที่ผ่านมา

    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

    3 วันที่ผ่านมา

    @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

    4 วันที่ผ่านมา

    What if it goes boom

  • Leo Zanardi
    Leo Zanardiชั่วโมงที่ผ่านมา

    Amazing video!!!

  • majinkaos
    majinkaos2 ชั่วโมงที่ผ่านมา

    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
    Powder3 ชั่วโมงที่ผ่านมา

    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
    bripsch3 ชั่วโมงที่ผ่านมา

    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 Barton4 ชั่วโมงที่ผ่านมา

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

  • Sandris Virsis
    Sandris Virsis5 ชั่วโมงที่ผ่านมา

    Basic chemistry in works

  • Shahariar fardin
    Shahariar fardin7 ชั่วโมงที่ผ่านมา

    Those Candles are really holly

  • 3 old main
    3 old main9 ชั่วโมงที่ผ่านมา

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

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    simpson cornish10 ชั่วโมงที่ผ่านมา

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  • YB!
    YB!13 ชั่วโมงที่ผ่านมา

    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

    12 ชั่วโมงที่ผ่านมา

    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 Boyd14 ชั่วโมงที่ผ่านมา

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

  • Victor
    Victor15 ชั่วโมงที่ผ่านมา

    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 Dekock16 ชั่วโมงที่ผ่านมา

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  • Sem
    Sem16 ชั่วโมงที่ผ่านมา

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

  • Mike Grizzly
    Mike Grizzly17 ชั่วโมงที่ผ่านมา

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

  • [DarkmindGames] SLIVER
    [DarkmindGames] SLIVER18 ชั่วโมงที่ผ่านมา

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

  • Lythrox
    Lythrox20 ชั่วโมงที่ผ่านมา

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

  • Lythrox
    Lythrox20 ชั่วโมงที่ผ่านมา

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

  • Mohamad Abdel Rida
    Mohamad Abdel Rida20 ชั่วโมงที่ผ่านมา

    Or you could just pack a few trees

  • Ben Goldberg
    Ben Goldberg20 ชั่วโมงที่ผ่านมา

    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 Madarasz21 ชั่วโมงที่ผ่านมา

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

  • Coltography
    Coltography22 ชั่วโมงที่ผ่านมา

    Woah I have that same refrigerant leak detector!

  • Baba Semka
    Baba Semka23 ชั่วโมงที่ผ่านมา

    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

    6 ชั่วโมงที่ผ่านมา

    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 edorays23 ชั่วโมงที่ผ่านมา

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

  • Christine Williams
    Christine Williams23 ชั่วโมงที่ผ่านมา

    He said "nine inch nails" 🤘🤘🤘

  • TZO_Ghoul

    small tree plants?

  • AllUpOns

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

  • Morton

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

  • Ed Hewitt
    Ed Hewittวันที่ผ่านมา

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

  • Yanko Joseph
    Yanko Josephวันที่ผ่านมา

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

  • Rueben Didit Fidget
    Rueben Didit Fidgetวันที่ผ่านมา

    Is this not a security breech of navy intelligence?

  • Yasu Leone
    Yasu Leoneวันที่ผ่านมา

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

  • 0MoTheG

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

  • Ken Haley
    Ken Haleyวันที่ผ่านมา

    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

    What about nitrogen

  • Eddie J. G.

    Eddie J. G.

    11 ชั่วโมงที่ผ่านมา

    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 sub2วันที่ผ่านมา

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

  • abrahameby fugui
    abrahameby fuguiวันที่ผ่านมา

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


    On a submarine or in a submarine? 🤔

  • No LB
    No LBวันที่ผ่านมา

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

  • Fenborg Mathias
    Fenborg Mathiasวันที่ผ่านมา

    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 Hobbsวันที่ผ่านมา

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

  • Andrew Hobbs
    Andrew Hobbsวันที่ผ่านมา

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

  • Matt Black
    Matt Blackวันที่ผ่านมา

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

  • John DoDo Doe

    John DoDo Doe

    14 ชั่วโมงที่ผ่านมา

    They just keep what they have.

  • Isaac Woo
    Isaac Wooวันที่ผ่านมา

    ok wellllllllll what about space

  • Grimes Elianna
    Grimes Eliannaวันที่ผ่านมา

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

  • stellarfirefly

    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



    "small" setting may show false positives

  • Russell K
    Russell Kวันที่ผ่านมา

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

  • Andrew Zeitler
    Andrew Zeitlerวันที่ผ่านมา

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

  • Don K. Johnson
    Don K. Johnsonวันที่ผ่านมา

    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 THmy. Then they shut down the project. Our tax dollars at work.

  • Dimas Fajar Nugroho
    Dimas Fajar Nugrohoวันที่ผ่านมา

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

  • Abrad85

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

  • lmw lmw
    lmw lmwวันที่ผ่านมา

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

  • RB

    Why is there iron in the candle? Thanks

  • The Elysian Experiment • Music by Sect 11 Hawk
    The Elysian Experiment • Music by Sect 11 Hawkวันที่ผ่านมา



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

  • Meh

    "I'm from ohio" "Oh"

  • angel gallegos
    angel gallegosวันที่ผ่านมา

    Why can’t they put a plant

  • Sean Williams
    Sean Williamsวันที่ผ่านมา

    Redundancy is always good for systems that keep you alive.

  • nocola nocola
    nocola nocolaวันที่ผ่านมา

    15:03 NINE INCH NAIL

  • Jeff Mitchell
    Jeff Mitchellวันที่ผ่านมา

    "deep dive" .. lol, well played

  • Patrick Hawthorne
    Patrick Hawthorneวันที่ผ่านมา

    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 Friesenวันที่ผ่านมา

    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 rocketวันที่ผ่านมา

    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.


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

  • random269
    random2692 วันที่ผ่านมา

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

  • Rafael Guillen
    Rafael Guillen2 วันที่ผ่านมา

    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.


    The nitrogen isn’t consumed. It just stays.

  • The Murph77
    The Murph772 วันที่ผ่านมา

    Nine inch nail!!

  • DommoPA
    DommoPA2 วันที่ผ่านมา

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

  • Naveen Paraparan
    Naveen Paraparan2 วันที่ผ่านมา

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  • Rainbow Squash
    Rainbow Squash2 วันที่ผ่านมา

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

  • WypmanGames
    WypmanGames2 วันที่ผ่านมา

    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



    @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.


    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
    Enila52 วันที่ผ่านมา

    19:41 father and son

  • Juan Gabriel Falcon
    Juan Gabriel Falcon2 วันที่ผ่านมา

    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.


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

  • Klipk
    Klipk2 วันที่ผ่านมา

    "So is this you job" LOL

  • J Steensgaard
    J Steensgaard2 วันที่ผ่านมา

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

  • J Steensgaard

    J Steensgaard


    @Eddie J. G. Alright cool. Thanks man

  • Eddie J. G.

    Eddie J. G.


    @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


    @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.



  • wabs05
    wabs052 วันที่ผ่านมา

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

  • B Person
    B Person2 วันที่ผ่านมา

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

  • Andrew Murray
    Andrew Murray2 วันที่ผ่านมา

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

  • Hey Ho
    Hey Ho2 วันที่ผ่านมา

    3:33 Who else thought they had a massage area

  • Bharat Kumar Bellamkonda
    Bharat Kumar Bellamkonda2 วันที่ผ่านมา

    class Delta fire. I like the sound of it.

  • Bharat Kumar Bellamkonda
    Bharat Kumar Bellamkonda2 วันที่ผ่านมา

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

  • Sheik S
    Sheik S2 วันที่ผ่านมา

    I learn more information about your tips

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    only pain2 วันที่ผ่านมา

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  • Joe D
    Joe D2 วันที่ผ่านมา

    This was an amazing video

  • Fenrir Nobody
    Fenrir Nobody2 วันที่ผ่านมา

    When he said it was "self oxidizing", I realized it was a form of thermite reaction, where O2 was an output of the reaction, released into the atmosphere. Amazing.

  • Sniperbuddy Dex
    Sniperbuddy Dex2 วันที่ผ่านมา

    i dont understand to it... so they are making oxy-hydrogen gas and separating hydrogen and breathable oxygen? because otherwise they could die due to poisoning from "browns gas" and i thought that this process of electrolysis is able to use only in welding technique or cars and not even thinked about it can be used as oxygen generator to submarines. nice video

  • Eddie J. G.

    Eddie J. G.


    We purify water, then we use electrolysis to separate the oxygen from the hydrogen. We discharge the hydrogen overboard and store the oxygen or release the oxygen straight into the air.

  • dsfgh zxc
    dsfgh zxc2 วันที่ผ่านมา

    so... the mea doesn't scrub the carbon off of the co2... it actually takes the co2 out of the air

  • rollonbc
    rollonbc2 วันที่ผ่านมา

    What happens to the co with the lithium hydroxide method?

  • Eddie J. G.

    Eddie J. G.


    @rollonbc I don’t know much about rebreathers.

  • rollonbc



    @Eddie J. G. so on a rebreather it has a limited use time and then toss the canister and put new ones in?

  • Eddie J. G.

    Eddie J. G.


    The lithium hydroxide combines with the CO2 to become lithium carbonate and... just stays that way. We’d just throw it away.

  • Silvia Fox
    Silvia Fox2 วันที่ผ่านมา

    Fun Fact: We are capable of scrubbing the CO2 out of this planet's atmosphere similarly to the way described in this video in amounts equal to or greater than what we produce. We have already built and used facilities to do such, with the largest currently being built in Texas. It is a 1 Megaton atmospheric CO2 plant, which is the equivalent of 14,000,000 trees in that one CO2 plant. It works great and we would only need 40,000 of those facilities across the world to capture all of the CO2 produced on Earth. Sadly all our anti-CO2 funding is going into monetarily inefficient "green ideas" hyped by the mainstream environmentalists funded by certain institutions focused on selfish goals which are not going to help the majority of our people prosper while keeping our environment healthy.

  • Dalton Cloninger
    Dalton Cloninger2 วันที่ผ่านมา

    The Clinkers are named after an old blacksmithing term. When a blacksmith burns coal, some of the coal's impurities cant burn and are left behind, so you end up with a chunk of hard rock like materials in your forge. But when those chunks fall in your forge blowing fan they will "clink" around until settling or falling out.

  • Jeffstan F
    Jeffstan F2 วันที่ผ่านมา

    Oxygen not included. Both way applied.

  • Open your eyes
    Open your eyes2 วันที่ผ่านมา

    4:40 the dude in the back lol

  • Bryan Overton
    Bryan Overton2 วันที่ผ่านมา

    "We own practically 90% of the boat" I'm sure that TM div and M div totally agree with that statement.

  • scubaseppy
    scubaseppy2 วันที่ผ่านมา

    Could you burn this in your house in an emergency for heat?

  • Tom Liu
    Tom Liu2 วันที่ผ่านมา

    Destin when not filming: Haha I sabotaged your oxygen supply! See ya! ( is among us dead? )

  • Nate
    Nate2 วันที่ผ่านมา

    Great, now I have the science I need to hide from other humans underwater indefinitely.

  • Bath Minchew
    Bath Minchew2 วันที่ผ่านมา

    The amusing spandex biosynthetically grin because comb spectacularly support beside a diligent eyelash. anxious, anxious shears

  • Jacob DeBerry
    Jacob DeBerry2 วันที่ผ่านมา

    Can you do a video on nonlinear acoustic lenses and sound bullets?

  • Wild Mountain Gwendy
    Wild Mountain Gwendy2 วันที่ผ่านมา

    Sooo...submarines are filled with really tough nerds. That’s awesome.

  • Jason Garfitt
    Jason Garfitt2 วันที่ผ่านมา

    This is a great video