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

    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!

    • StabbyJoe135

      How to consistently beat the ever changing algorithm? Avoid the algorithm. Genius (every day).

    • digital subliminal messages
      digital subliminal messages

      S R B No it makes super sense/ ...solid fueled

    • digital subliminal messages
      digital subliminal messages

      S R B Sounded like "Lawny"///

    • digital subliminal messages
      digital subliminal messages

      S R B Try putting some pitch on the outlets / in the valve / and even make the part longer / ....🤚...past ,the tear drop/ oh wow super charged with compressed air // /////and ironically/ it could be / combined ,(sort of/) with that membrane/ and your electrodes// ///

    • New Jargon
      New Jargon

      Thank you for the video, so interesting to me. Didn't know exactly how this worked, never actually thought about it. Amazing engineering.

  • Ben Schlea
    Ben Schlea

    Ohio?! C'mon it's not THAT bad! Although I may be biased, being here most of my life....

  • Hwhshe Bshehshcbd
    Hwhshe Bshehshcbd

    Narrowed down my choices to two, being a ET/FC (on a Sub) or Corpsman as a rate while at MEPS. Safe to say I went with the ladder. But a part of me wishes I chose being on sub for the stories I would be able to tel on deployment.

  • Cory Blodgett
    Cory Blodgett

    I look forward to these videos, and respect that other channels come to you when they want credibility. You’re awesome! Keep it up!

  • Dilton McGowan II
    Dilton McGowan II

    Good video, enjoyed it.

  • FloralPattern

    I'm more surprised by the multiple floors

  • Thermal Pasties
    Thermal Pasties

    Nin. Has entered the chat

  • The Ranger
    The Ranger

    They just recycle farts

  • Truth Sage
    Truth Sage

    That's really cool.

  • FatMeatstick45

    I'd love to work on one of those ships tbh.

  • duke royalty
    duke royalty

    The like belgian actually prick because tune pathomorphologically frighten modulo a nonchalant recess. pretty, old hawk

  • KicksReview J
    KicksReview J

    The heavenly heavy hellish raven certainly ignore because okra relatedly consist despite a unique rooster. nimble, first rectangle

  • Omnis

    8:25 Someone shops at Target.

  • Sir Gray
    Sir Gray

    This is a dope video!crazy to think how you pulled the strings to see all this.

  • NightOwl Games
    NightOwl Games

    whys he calling a sub a boat?

  • Beowulf

    what about the MEA smell on sailors clothes?

  • Fudge Shizzles
    Fudge Shizzles

    Plan a tree in the submarine, it’ll convert Co2 into Oxygen.

  • Joel Chávez
    Joel Chávez

    Hey Destin, do you know if they use the hydrogen from the electrolysis for fuel porpuses?

  • kyke b
    kyke b

    My guess for the pre boiler is that the heat differential is too great under pressure that if they introduced the heavy ema it would take too long to reach pressure/gas state given the size and space allotted to the equipment. Also, listening on the elliptical with my Raycon E55's and they really are great.

  • buccaruu

    Good Vid. It was nice to see the places I have stood many times before once again.

  • Steven Humphrey
    Steven Humphrey


  • Regdu Geht
    Regdu Geht

    4:36 "Oh, yeah, not going that way with those weirdos."

  • Swan Donovan
    Swan Donovan

    Don't get lithium hydroxide wet though...

    • Regdu Geht
      Regdu Geht

      Hmm. So THAT'S how you make chlorine gas.

  • Will Swift
    Will Swift

    Could we use photosynthesis to freshen the air? plants or plankton in pipes or whatever. or some non plant based photo synthesizer panels on walls.

  • Luigi Carlo
    Luigi Carlo

    Plz make a trip to the moon and make this type of series!!!

  • it’s lana
    it’s lana

    Deadass thought he was holding a Kit Kat bar on the thumbnail lol

  • Kent Bowman
    Kent Bowman

    Class D fire?!? Holy cow! If that ever happened to our airplanes brakes the fix was to push the whole plane overboard!!

  • Jamieson

    Just put some plants in the submarine smh

  • Teddy Lark
    Teddy Lark

    If would be funny if this guy was a Chinese spy ever 😂


    Can we talk about that sweater he was wearing, dude he looking rad

  • Derek Parent
    Derek Parent

    I believe the rocket above the map is attempting to relocate to another room. 🤔 Great video and beautiful puppy. 👍

  • Bravo Tran
    Bravo Tran

    Great video. Thank you.

  • kenny k
    kenny k

    Was there a movie recently where the sub blew up because someone dropping one of those candles in the flooded water .

  • Amós Ramírez Rosas
    Amós Ramírez Rosas

    The forbidden lean

  • kenny k
    kenny k

    6.09 thats the look you make when your learning stuff that interests you .

  • hadi reg
    hadi reg

    ⭐⭐⭐⭐⭐👍 fascinating!! Big respect to all ppl contributing in all this science!!

  • notfiveo

    Mechanically reverse osmosis is not that complicated, but the chemical process for deionization is. *disclaimer, I don’t always know what I’m talking about.🤣

  • OpenEye Automobile
    OpenEye Automobile

    @SmartEveryDay, why do we have those chains barricades around when they're about to light the candles?

  • I Like Turtles
    I Like Turtles

    Hmm. So THAT'S how you make chlorine gas.

  • I spilled my coffee on the floor
    I spilled my coffee on the floor

    They breath in their farts dumdums. Of course they won't run out of air, submarine people like beans.

  • Perry Knew Em
    Perry Knew Em

    Destin is about the most handsome man ever in a blue/white farm hat. Destin in a neon orange beanie makes me...uncomfortable.

  • Michael Durkin
    Michael Durkin

    I think I always assumed that CO2 scrubbers separated the carbon from the O2 and released the O2 to be used again

  • plasmathunderdx

    Submarines are pretty much the same as being on a space ship. These guys are badass.

  • davida1hiwaaynet

    Totally fascinating technology. This is the first submarine video of yours I have watched and it is super-cool to see this. I am in awe of how young the vessel's crew are. Mad respect!

    • davida1hiwaaynet

      @SmarterEveryDay Completely understand that! I know several veterans myself from earlier times, who are greatly wise from their experiences. As an aside note, working in the Oil & Gas and maritime industries; I see a lot of very bright younger people as well. Complete respect and wish all our younger generation possessed this type of knowledge and experience. Our country would be so much better off!

    • SmarterEveryDay

      Very smart, and very professional. If I had a business that was hiring, I'd be seeking out veterans.

  • Levi

    Air scrubbers are awesome! And air candles?! Great episode👍 ⭐️⭐️⭐️⭐️⭐️

  • Tony

    The guys on these subs are a special breed. Not a job everyone can do. Hats off

  • Franny Ward
    Franny Ward

    Giving up secrets here. "Dumping Hydrogen" out into the sea can maybe be picked up from an enemy sub using some sort of "sniffer" of it's own.

  • Channel Zero One
    Channel Zero One

    NIN 15:00 Now I know how they came up with their name.

  • James Keeler
    James Keeler

    From a laymen's point of view, his shipmates in the video seem a bit nervous or something else is going on. That is a nuclear submarine, there is a lot of high-tech there. Be careful what you release to our-adversaries.

  • Awesome Toodles
    Awesome Toodles

    " I would have killed everybody on the boat and I *DO* want to do that"

    • pagina por favor
      pagina por favor

      Yes spoken like a true submariner.

  • Blake

    Hashtag just buy a bunch of plants and keep them on board with you. lol.

  • Nick Llama
    Nick Llama

    How many of those oxygen candles does a sub carry? Those things are HUGE and they go through a lot of them during a day... Where in the sub do they store all of them??

  • Bradley Nugent
    Bradley Nugent

    Sometimes I forget that nuclear subs might be interesting to people because of how long I was on subs when I was in the navy, my first thought when I saw the title was everyone knows that why is there a video about it 😂

  • tommy Chan
    tommy Chan

    When are we going to mars ?

  • pagina por favor
    pagina por favor

    Lol I work on a 688 sub like this, cool vid. It is different working in these "cool" places, but ya know, it's nice to see people interested in the science behind subs. I am a nuke so if I were around, you would hear me make depressing jokes and joke about the small amount of folds in people's brains... not that I have any folds :l

  • Patrcia Clemons
    Patrcia Clemons

    So how's it done? Cba to watch 30 minutes for a 30 second explanation

  • Anh Tran
    Anh Tran

    Hmmm I just thought the Sub has gills like fishes so it can breath under water.

  • Erik Nilsson
    Erik Nilsson

    22:46 Who even uses such low quality ice in 2021? We are living in the future, good people, and in the future we can create crystal clear ice. There is NO reason whatsoever to use cloudy ice to cool a drink in 2021. Where did he even get an ice-machine that produces such low quality product? I mean: one, the ice is opaque (causing a reduced cooling-to-watering-down ratio) and two, the ice is some sort of sausage-shape instead of crisp cubes (causing a visually sub-par drink presentation). It is 2021, humans. We need to up our game! Crystal clear perfect cubes or bust. I hope I never again see cloudy ice-sausages illustrating “ice” in a LTwhite-video. It should at least be marked as “viewer discretion advised”, or more reasonably “this has been identified as disturbing content - do you wish to proceed?”.

  • Lukas Tadeo
    Lukas Tadeo

    13:34 I like how he pointed the flash light at the face of the guy when hes talking

  • Felsennest

    For how long is the lithium hydroxide membrane effective?

  • kyle mossi
    kyle mossi

    That sounds frightening. A fire that creates it's own oxygen to burn. Oooof.

  • Douglas Blair
    Douglas Blair

    Your Life sustained by Enlisted Crewman that know their mission.. You don't need an engineer to stay alive.

  • Mr Fucklegruber
    Mr Fucklegruber

    TL; DW Submarines have gills


    I hope some day in the near future I’ll see you making a video from space

  • Chaos Reigns
    Chaos Reigns

    the oxygen has to be mixed with other inert nitrogen... pure oxygen is bad for ya... over time you can get cancers.... it has to be dilute to be safer... not to mention that pure oxygen is very flammable, and in a sub, there are things that can create sparks...

  • fric stix
    fric stix

    Just bring a lot of plants with you

  • First Last
    First Last

    Everything is so old-school.

  • zHowie

    I wonder if you think a contact could be in the shadow zone - you could use some kind of very sensitive hydrogen detector to see hydrogen being released from a sub due to the electrolysis on board - or a sensitive CO2 sensor to see where there's more of that than there should be... but they're probably released in bursts so you could never get a constant position... or something... loving this series!!

  • Tim Gruver
    Tim Gruver

    Every one knows there's a little tube that floats on top of the water. It's been top secret for years.

  • butters

    Its a pleasure to see professionals at work. and a really interesting class.

  • Cmoore Butz
    Cmoore Butz

    Guy at 4:46: "nope"

  • Bruno Oliveira
    Bruno Oliveira

    what does a submarine smell like?

  • Matthew Miller
    Matthew Miller

    Lowest O2 I have personally seen is 14.8%, what is yours?

  • charleskimbac

    great vid w/ further explanation + drawings, ty :)

  • Poodleinacan

    10:26 Give that guy some props. He brought hair paste with him, to have presentable hair in the sub at all time.

  • J.T.Patton

    Boopersnoot! LOVE it! :D

  • Red Planet
    Red Planet

    Very cool. These sailors are impressive.

  • Reelax Outdoors
    Reelax Outdoors

    We don't run out of air because we subscribed, liked and commented on another Smarter everyday video.

  • Bionic Cornet
    Bionic Cornet

    Just put a bunch of plants on board because they breath in carbon dioxide and breath out oxygen lol I wish

  • Łukasz Kucharski
    Łukasz Kucharski

    I dunno why, but I giggled at the idea of silent CO2 farts into the waterm. Esp. given how imporant it is, the more silent you make the farts, the more deadly you are.

  • thejordanbrooks

    I've been waiting for more submarine videos! When I was little I wanted to be a firetruck or a submarine. Yes, the vehicles, not the person who operates them.

  • David Hoover
    David Hoover

    Even you an Engineer looked totally confused.

  • heddu you
    heddu you

    How many candles does a sub like that carry? Must be at least a few hundred

  • InsanitySoldSeparately

    I love his child like qualities but he’s also so intelligent and it’s very awesome to watch and hear all his questions and get good answers!

  • Ben Jackson
    Ben Jackson

    I have my coveralls wrapped up in plastic bags to preserve the smell. Makes for a great smell and tell.

  • MyUnquenchableThirst

    can raycons pair to two different phones at the same time?

  • Richard Marble
    Richard Marble

    We had OBA's (Oxygen breathing apparatus) for going into smoke filled compartments while fighting fires. I believe that It is the same principle on a smaller scale. It has been 50 years ago so I don't know if they still use them. i was in aviation.

  • The Jon
    The Jon

    The inside of the sub looks like a basement filled with 1980s technology lol

  • MeTube Galvez
    MeTube Galvez

    oo look its Austin Evans lol

  • Ker Loz
    Ker Loz

    The unique steel optimally sneeze because stew significantly lick up a testy meteorology. bashful, soggy sailboat

  • Daniel Kolbin
    Daniel Kolbin

    always wondered that

  • Cole

    I’m just waiting for you to get your fish. You’re already there.

  • blusafe1

    Preheating fluid is a common motif with boiler systems. It's very efficient to add a bit of heat to inline feed lines.

  • Brandon Tripp
    Brandon Tripp

    What was he saying? DOW?

  • Milky Rinoa
    Milky Rinoa

    He referred to two adjectives to describe Anime. He said, RICH anime and he said LEAN Anime... LEAN anime is something like Boku no Pico?

  • warhorse03826

    I had a friend that worked at the portsmouth naval shipyard on the reactors. he used to tap hydrogen off the reactor, put it in a trashbag, tie it off and attack a tinfoil hatch cover to it. then he'd let it go. the local air force base would send out interceptors to figure out what these weird radar reflections were..strong when the foil was facing the radar, nothing when edge on. they never found anything and the people at the shipyard had a good laugh over it...

  • Hey You
    Hey You

    Apollo 13

  • Shiznaft

    So cool that the Navy allowed you access to the ship for this. Really interesting.

  • NightRogue

    love this series!! the bestest

  • Did4 U2B
    Did4 U2B

    This is high confidential material, now exposed to the world, especially the enemies of US.