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!

    • Troule9 T
      Troule9 T

      PLANTS do both scrubing CO2 and making Oxygen. How many plants would it take to do the same job as these alternatives? How about a comparison video? I'm sure many other fans like me would like to know.

    • 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 !


  • TheLiddleBigChannel
    TheLiddleBigChannel the Narcos know how to modify their subs for long haul trips to europe!

  • Sage Paris
    Sage Paris

    Things like this make me so excited about what I could do with my engineering degree that I'm about to finish

  • Julian Smith
    Julian Smith

    I am struck by how young they all are. It's such a shame that we as a species have to put so much brain power and life potential into fighting each other/protecting ourselves from ourselves. Much respect to all these guys. Fantastic series, Destin, you've outdone yourself.

  • Forrest

    I wish my teachers can explain like this.

  • Harish Lathia
    Harish Lathia

    what about fork handles, i mean 4 candles

  • STEMPrime

    22:53 Oh, come now Destin, you should know that there is no such thing as a "visual learner"

  • Aran Playz
    Aran Playz

    I found the imposter he didn't let out carbon oxide i saw it on cams

  • George Terry
    George Terry

    4:34 - that poor man in the background

  • C

    nine inch nails

  • Henry Cadorette
    Henry Cadorette

    Wow !

  • Otto Smith
    Otto Smith

    One word, plant

  • nathan ratliff
    nathan ratliff

    He kinda looks like Austin Evans

  • Tim Cooke
    Tim Cooke

    Your model of a 688i has a major flaw. there are no ducts around the prop in any LA class boat. The stabilizers between the rudder and stern plane is also way off it is right between them not 20 or 30 feet ahead

  • Grzegorz Poweska
    Grzegorz Poweska

    how do they have oxegin

  • niduoe stre
    niduoe stre


  • x1r x1r
    x1r x1r

    shout out to Dow! very knowledgeable

    • niduoe stre
      niduoe stre

      I guess they'll just use electrolysis after filtering the Salt out.

  • Bian Wilson
    Bian Wilson

    Dont use the world sour to describe air quality. Thats gross. Growdy.

  • Anthony Golden
    Anthony Golden

    So, would MEA solution me scalable as a carbon capture technology? Obviously we wouldn't just eject it back out, but perhaps pump it into a greenhouse, for example?

  • Charles Cox
    Charles Cox

    Do they have a system to recycle some of the CO2 from the MEA to make carbonated beverages?

  • Paul Downey
    Paul Downey

    I’m surprised they don’t monitor methane levels

  • Krystal Myth
    Krystal Myth

    Everyone on this submarine is so ridiculously professional.

  • Krystal Myth
    Krystal Myth

    19:20 Are you aware your son was going to be on this submarine? Look at you two, you look related, no joke. You should probably ask lol.

  • Charles Kellett
    Charles Kellett

    My brain matter just increased by 0.005%, thank you for the knowledge.

  • Michael Rudiger
    Michael Rudiger

    Cool, I love the sub series!

  • Matthew Sikora
    Matthew Sikora

    How to sum up this video... submarines=real, lunar landers = fake

  • RED Mercury
    RED Mercury

    Nope. I will fight on land guys.

  • David Hedges
    David Hedges

    MEA Monoethanolamine is commonly used in combustion plants to reduce their CO2 output Both making O2 and removing CO2 have a primary system that requires power but is infinitely recyclable and a backup system that uses no power but is one time only

  • David Hedges
    David Hedges

    Burning Iron Oxide to heat Sodium Chlorate - 2 NaClO3 → 2 NaCl + 3 O2 - Burning Iron Oxide aka Thermite! i.e. Class D Fire - Burning Metal

  • AJ Dexter
    AJ Dexter

    Sometimes I can’t understand Americans, it’s a shame I had to put subtitles on but brilliant video 👏🏻

  • aztechnotronic

    My utmost respect to the brave men & women aboard this submarine sacrificing the time & effort in the name of protecting their country so that others may sleep in peace knowing that they are protected and in good hands of these fine young men & women. RESPECT.

  • Holzwurm _HD
    Holzwurm _HD

    I guess they'll just use electrolysis after filtering the Salt out.

  • Jonathan

    They should have been able to explain exactly how that candle works, kinda irritating that they just know the basic of phosphorus igniter starts candle to make oxygen.

  • Connor Beckmann
    Connor Beckmann

    Preheat of amine so the cool amine doesn’t stop the boil in the boiler?

  • Maha Rajah
    Maha Rajah

    Good job !

  • meister adrian
    meister adrian

    i hit thumbs up for the dog

  • Scott C
    Scott C

    Another great video, thank you Destin.

  • DankScape

    The way you told DOW to "say it slower" at 20:25 was quite rude.

  • swarna mohanty
    swarna mohanty

    Hydrolysis of water.

  • wan iman
    wan iman

    Why dont they use phytoplankton to produce oxygen? Just add in water, IV light and boom! Oxygen

  • Mr Techie
    Mr Techie

    Nuclear is the best source of baseload power, by far.

  • J J
    J J

    Amazing show.

  • r0b690

    Always liked the vids but I got to say the submarine videos were great, really interesting. Thanks for the content

  • Chris Ensing
    Chris Ensing

    Thank you for posting this video. It has been 14 years since I left my boat, and this really put me right back. This was the same class and size as my sub as well. I heard a shipmate say he had never seen a candle burned, and that was the case for me too. I was aboard for 2.5 -3 years and never seen one burned. I guess that's a good thing =D

  • Mr Techie
    Mr Techie

    Build up of CO2 kills even if there is oxygen.

  • su oh
    su oh

    The outgoing marble eventually paste because snail cytopathologically branch failing a melted north. malicious, unwieldy house

  • Dave smokey
    Dave smokey

    When did it become the submarine channel?

  • arun secret
    arun secret

    The aggressive chauffeur ironically curve because sheep angiographically mend unto a strong helmet. aggressive, unbecoming backbone

  • Tom R
    Tom R

    Surely there needs to be equality. More females on subs :D

  • Malachi Strachan
    Malachi Strachan

    Just crack a window dummies

  • MrVivekkp

    Whoa.. I always wanted to know this.

  • Lolmaster roach
    Lolmaster roach

    I was thinking about COVID but then I realized that they aren’t exactly exposed to it in the sub.

  • jtmonie29445

    An FYI, the reactor just helps create steam for the turbine generators to create electricity for the AOG. There’s no direct connection to the reactor.

  • 01fuzzylogic01

    really nice chaps down there in the submarine. thanks for the education

  • Plural Kumquat
    Plural Kumquat

    I feel like monoethanolamine should be pronounced differently. Less emphasis on the A in amine.

  • sleepingkirby

    In the electrolysis reaction with purified water using potasium hydroxide, where does the potassium go in the reaction? (edit, answered my co2 question)

  • Zealant

    Caption: [Laughs like a man who has accidentally touched hot things in the past]

  • The S Word
    The S Word

    Is that the most important duty on the boat.

  • Anton B
    Anton B

    Never knew Austin Evans is now working on a submarine

  • Jack Noble
    Jack Noble

    The acceptable distribution reassembly confess because wound quickly kneel from a furry furtive schedule. kaput, nasty chief

  • Dharma Jannyter
    Dharma Jannyter

    0:02 "This is a lunar lander" 0:06 "This is a nuclear submarine" Ha, you can't fool my trained eyes! Those were just models!

  • Dann0343

    I'm going to guess electrolysis

  • Alkaris

    I'm guessing you got connections to people in all sorts of places to be able to get a ride on a submarine like this.

  • Caye Zara
    Caye Zara

    Thank you and so with the US Navy Personnel for letting you, and share with us a fascinating system as a result of science, physics, chemistry, math and engineering. Amazing!!

  • zoman zero
    zoman zero

    Just get pavel in there he will sort it out

  • Banks Dennis
    Banks Dennis

    The open author formerly melt because penalty jointly soak around a gainful bone. adhesive, abandoned bamboo

  • R S K
    R S K

    At start i thought wth this video is 30 mins, ended up watching fully.

  • R S K
    R S K

    Summary 26:00 , i recommend watching the whole video...

  • R S K
    R S K

    These guys know what they are doing

  • 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.

    • Jonathan

      Only as a backup that they use them, they would be pulled from mission if they didn't have any candles and their electrolysis machine was down.

    • Holly Y
      Holly Y

      I thought that too but I guess it’s only as a backup

  • 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.

  • Hardy H.H
    Hardy H.H

    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 .