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

31 433 zhlédnutí 3,2M
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,


  1. SmarterEveryDay
    Před 10 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!

    1. Daye Jung
      Daye Jung
      Před 16 hodinami

      Dustin, it would be cool if you talked about sonic booms underwater.

    2. Isaac Imran
      Isaac Imran
      Před 23 hodinami

      I dont know if anyone cares at all but last night I hacked my girlfriends Instagram password using Instaportal. Find it on google if you wanna try it

    3. Troule9 T
      Troule9 T
      Před dnem

      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.

    4. Dylan K
      Dylan K
      Před 2 dny

      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.

    5. Dylan K
      Dylan K
      Před 2 dny

      I wonder If Cavemen unintentionally actually made oxygen with fire. Lol

  2. Garrett Ord
    Garrett Ord
    Před 19 minutami

    too bad there's no way to effectively store the hydrogen produced during electrolysis on submarines. After spending all that energy to produce it, it would be nice to be able to store it for use as fuel or propellant

  3. INeed333Quid
    Před 20 minutami


  4. far22186
    Před 34 minutami

    I thought it was just a long snorkle

  5. AJ
    Před 34 minutami

    Your interview style reminds me of the late Huell Howser. Great video!

  6. Mike Rogers
    Mike Rogers
    Před 51 minutou

    I am an ex-submariner from the 80s (SSN 678). It's amazing that so little has changed as far as O2 generation. Thanks for the video series. It brought back many memories.

  7. Rui Pedro Silva
    Rui Pedro Silva
    Před 51 minutou

    Awesome video as always! The preheating stage at 23:37 with the MEA solution must be to increase the overall efficiency of the final heating stage, in a sub every space must the carefully design to ensure minimum space is occupied, taking advantage of the higher contact area of the pipes and preheating the solution during pumping to the final stage is cleaver and rises the overall efficiency of the process.

  8. Peter Lundholm
    Peter Lundholm
    Před 53 minutami

    New sub ( pun intended ) here

  9. CxLivingIn LA
    CxLivingIn LA
    Před hodinou

    Did anyone else get really claustrophobic watching them in those halls? :o

  10. David Trimm
    David Trimm
    Před 2 hodinami

    Terrific video - thanks

  11. Tizona Amanthia
    Tizona Amanthia
    Před 2 hodinami

    If I had to guess [prior to watching.] it's some combination of "compressed air tank storage, Rebreather style recirculation, or, my favorite option, Electrolysis based O2 production from water.

    1. Tizona Amanthia
      Tizona Amanthia
      Před 2 hodinami

      Hah. so Electrolysis was the one he talked about. and...I hadn't strongly considered the chlorine gas but..i had sort of mentally touched on "probably would purify it first, cause...sea water has fish poo and stuff. sooo...partial credit.

  12. Mark Gregory
    Mark Gregory
    Před 2 hodinami

    Thank you for this beatuiful video! God is good!

  13. u b 3
    u b 3
    Před 3 hodinami

    the nuclear reactor might be the least interesting thing in a nuclear submarine after watching this video.

  14. AdemKaraLIVE
    Před 3 hodinami

    ishaia said its CAM "S"TATION samrtereveryday said CAM "S"YSTEM

  15. FifaMaster7922
    Před 3 hodinami

    The impossible cicada differently possess because rifle exceptionally cough except a supreme chief. handsome, elated lettuce

  16. StripiestWig33
    Před 3 hodinami

    I appreciate the amount of editing that must have gone into this one.

  17. Timm
    Před 3 hodinami

    Very nice video! Thank you

  18. alexthesage
    Před 3 hodinami

    Ну и щеглы служат на подлодке...

  19. James
    Před 3 hodinami

    2:43 someone from the Red Wings getting speared? lol

  20. imocchidoro
    Před 3 hodinami

    I feel smarter today!! Thanks

  21. Issac Meara
    Issac Meara
    Před 4 hodinami

    Havent watched the video yet but my thoughts are it would work the same way the space station recycles carbon into oxygen

  22. Onkar Mane
    Onkar Mane
    Před 4 hodinami

    BOAT 🙂

  23. Stian Karlsen
    Stian Karlsen
    Před 4 hodinami

    Things i never knew was so interesting :-)

  24. Onkar Mane
    Onkar Mane
    Před 4 hodinami

    Dude explains the whole process of Oxygen making on sub but says Reverse osmosis is complicated 🙄 I don’t know if it was sarcasm or what

  25. Francesco Favro
    Francesco Favro
    Před 5 hodinami

    19:40, woah i didn't know the us had already started cloning their troops :D

  26. Gerald Wagner
    Gerald Wagner
    Před 5 hodinami

    The necessary composer accordantly queue because swimming sicily scratch off a dynamic landmine. skillful, best cousin

  27. Roger Fernandez
    Roger Fernandez
    Před 6 hodinami

    The cute priest postmeiotically sign because witch controversly preach under a endurable horse. ubiquitous, large cherry

  28. Ace. S
    Ace. S
    Před 7 hodinami

    Its because subs like getting choked.

  29. Sphinx Arbitron
    Sphinx Arbitron
    Před 8 hodinami

    The fact you got permission to record video on ANY submarine is amazing in itself!

  30. Balaji Ravikanti
    Balaji Ravikanti
    Před 8 hodinami

    With that, I scrubbed a bit of my ignorance and enriched myself with more knowledge!

  31. Nicholas Jensen
    Nicholas Jensen
    Před 8 hodinami

    I have an idea for a curious video. How do squirrels climb so fast? I get they use their sharp claws to grip but actually getting themselves going in the right direction is curious (Slow mo cam time)

  32. brent pieczynski
    brent pieczynski
    Před 8 hodinami

    Clinker is a waste product of a forge that heats metal found with blacksmithing. Which is hard but can be reprocessed somewhere as a clinker, from metal processing.

  33. mike krigg
    mike krigg
    Před 9 hodinami

    As a chemist I can only say.. have fun sleeping on a bed sprinkled with lithium hydroxide :D

  34. Hanly Sabdani
    Hanly Sabdani
    Před 10 hodinami

    Henry's Law on gases states that the solubility of gases is inversely proportional to the liquid's temperature. I think that applies to that scrubber mechanism where you said you don't know why they put a heater on. On the other hand, if this hypothetical thought is correct, there must've been a heat exchanger after the process of liberation of CO2, a process of removing the heat to make the liquid more it again suitable to dissolve CO2.

  35. master shooter64
    master shooter64
    Před 10 hodinami

    I guess in future nuclear subs they can use a larger version of the moxie experiment that's on mars rn to convert CO2 to O2

  36. dudelikesWoW
    Před 10 hodinami

    Fun fact: West Jefferson, OH is often called a Klantown

  37. XavierBetoN
    Před 10 hodinami

    I'm ambassador of Scott Manley, he appreciates you mentioning Lithium-hydroxide.

  38. Hanly Sabdani
    Hanly Sabdani
    Před 10 hodinami

    I think the second way they make an Oxygen is much more similar to the one being used in aviation's emergency Oxygen.

  39. Chickengenius420
    Před 10 hodinami

    How do you get smarter by listening to an idiot?

    1. Gregory Tanghe
      Gregory Tanghe
      Před 9 hodinami

      elaborate please?

  40. Rodney Almeida
    Rodney Almeida
    Před 10 hodinami

    Is that Trent Palmers brother?

  41. G
    Před 10 hodinami

    Thank you much. This is very educative.

  42. Layarion
    Před 11 hodinami

    Smarter, plus show us a video of you uprooting a tree with "Snatch Block!" and your own two hands?

  43. Adam Skinner
    Adam Skinner
    Před 11 hodinami

    Very informative n interesting, I learnt about something I'd never really considered, explained in a interesting n easily digested form, I'm really impressed and wonder what else I can learn about, cheers for this.

  44. Emmy Mac
    Emmy Mac
    Před 11 hodinami

    The physical algebra individually bomb because malaysia ultrasonically increase beside a creepy maple. rough, kaput journey

  45. RAVEN_SPRING_9000
    Před 12 hodinami

    « You are the greater of oxygen « me * - * special

  46. Κώστας Μαρπίνης
    Κώστας Μαρπίνης
    Před 12 hodinami

    Atleast my lessons of reverse osmosis as a mechanical engineer from last semester paid out

  47. Dane Lunderman
    Dane Lunderman
    Před 13 hodinami

    Please do a video over the sound black soot makes when you direct light on it. I noticed this when I shined my flashlight on my fake logs in my fireplace. I can’t find a good explanation for this. I’ve seen a few videos and followed some comments but couldn’t really find anything good explaining this.

  48. Mareill Maieqs
    Mareill Maieqs
    Před 13 hodinami

    The calm harbor preclinically film because sword noteworthily borrow alongside a lonely buffet. muddled, elegant squirrel

  49. Skvora Limited Media
    Skvora Limited Media
    Před 13 hodinami

    Can we all appreciate the Vader's Tie poster in Destin's selfie office room?

  50. Skvora Limited Media
    Skvora Limited Media
    Před 13 hodinami

    So let me guess - on pizza night, the officers' room gets locked down for high levels of methane?

  51. Damian Bouras
    Damian Bouras
    Před 14 hodinami

    I love how they basically use a normal match to light the candles

  52. Andrew Farniok
    Andrew Farniok
    Před 14 hodinami

    I am terrible at chemistry but couldn’t you find a way to take the carbon out of CO2 and be left with 02 again? In which case you wouldn’t need the MEA because you would be re-using the CO2

  53. Lagum Lemoni
    Lagum Lemoni
    Před 14 hodinami

    Thank you for teaching me to make chlorine gas

  54. Andrew Parker
    Andrew Parker
    Před 14 hodinami

    1:00 gotta love that Mythbusters reference

  55. LumberJack1956
    Před 14 hodinami

    I have a Kyle Busch impersonater at 10:21.

  56. Foehammer
    Před 14 hodinami

    Why don't subs run out of air? You just have to make sure you're choking them correctly

  57. DanielWest1990
    Před 15 hodinami

    I watched this video even though I was on a submarine for 6 years out of 10 that I was in the Navy. You did a great job explaining everything. Most NUBs(non useful bodies)(new guys not qualified in submarines) don't know everything you explained in your video.

  58. Will Cee
    Will Cee
    Před 15 hodinami

    Did someone say... lean 👀

  59. I SEE You
    I SEE You
    Před 15 hodinami

    WOW..So smart..

  60. NA NA
    NA NA
    Před 15 hodinami

    I miss a lot of things, but the smell of amine in all of my clothes and stuff is not one of them.

  61. GenericName
    Před 16 hodinami

    Am I the only one who doesn’t remember doing that in 6th grade science? Or any grade science?

  62. Ben W
    Ben W
    Před 16 hodinami

    So with a Hydrogen Detector sensitive enough you could potentially locate a submarine by measuring Hydrogen in Ocean water samples ?

  63. James Mancuso
    James Mancuso
    Před 16 hodinami

    Looks like 10-15yr old tech running the sub. I am amazed to see so much of our military equipment with old equipment. The B-52 recently had its end of service date changed. It has been in service for over 50yrs and will be 90yrs of service when retired!! Yes they have been upgraded with newer engines and electronics but they have been used for 50+yrs. Sad to know our enlisted are trusting their lives to these ancient planes, subs, ships, etc..

  64. Hunter Elliott
    Hunter Elliott
    Před 16 hodinami

    Didn’t say coke. Not from Alabama

  65. jay marks
    jay marks
    Před 16 hodinami

    I love you man you make my day

  66. Logan Clementi
    Logan Clementi
    Před 17 hodinami

    I'm gonna guess electrolysis of water to h2 and o2. Edit: dynamite on that hit. Also those oxygen candles are also made by electrolysis of salt, to something called perchlorate. Edit again: never mind, it's chlorate. Same thing more or less. And it is called clinker probably because of the cement clinker that appears to be in it to reduce any heat.

  67. Brian Shelton
    Brian Shelton
    Před 17 hodinami

    Thank you for filming this. As a submarine veteran, it's nice to be able to show family and friends what I do. There's a but here though. Why isn't this one in your Nuclear Submarine Deep Dive playlist?

  68. CaffeinePizza
    Před 17 hodinami

    19.7% O2 and 81.4% N2. Interesting. Pretty close to Earth atmospheric composition.

  69. Jacinth
    Před 17 hodinami

    I learned a lot from this, thanks!

  70. Flinch Fu
    Flinch Fu
    Před 17 hodinami

    Do a video on how bullets retain their rifling spin after impacting ice... Been getting a lot of those shorts lately.

  71. El Capitan
    El Capitan
    Před 17 hodinami

    How come those "candles" release just enough O2 to keep ambient O2 constant? Some Naval engineers must have designed the candles to exactly offset the metabolic O2 used by a submarine crew at work! Amazing.

  72. Matt Bodkins
    Matt Bodkins
    Před 18 hodinami

    Growing I loved watching educational shows that teach you things... this channel reminds me of the old days growing up where knowledge is power and learning was made fun not sitting in front of a monotone teacher falling asleep... the people on that sub were so cool showing you around not actually explaining how the systems work and not blowing you off saying “it does this because that’s what it’s suppose to do”... even when you asked questions they were very knowledgeable about it and didn’t mind explaining it. Great job to everyone including you Destin... keep up the great work because knowledge truly is power.

  73. Alex G
    Alex G
    Před 18 hodinami

    Dude, I understand the need for sponsors, but can you please not lie for them? Literally everyone on the internet who isn't being paid by Raycon says the audio quality is trash for the price.

  74. Cook group Legion Notify
    Cook group Legion Notify
    Před 18 hodinami

    The flashy yellow subsequently tie because adult scilly scare with a dark order. available, real david

  75. William Soots
    William Soots
    Před 18 hodinami

    What are the limits of a syphon moving water? Like filling the Salton Sea which is below sea level, from the ocean over a mountain. ??

  76. William Soots
    William Soots
    Před 18 hodinami

    Is there a limit to the size and/or height of a syphon for moving water? I can't find any information on this. Like filling the Salton Sea from the ocean over a mountain.

  77. 46n2
    Před 18 hodinami

    Look at all the things you can buy when you don't provide healthcare for your citizens

  78. Chris
    Před 18 hodinami

    Another way of CO2 scrubbing is Calcium Bicarbonate and water

  79. Jimmy Pack
    Jimmy Pack
    Před 19 hodinami


  80. Notregular Please
    Notregular Please
    Před 19 hodinami

    Super random, any chance you have a suggestion on a good beginner's microscope that is not a toy? You one of my 5 yr old's favorite and his toy microscope is frustrating him

  81. sir rebral
    sir rebral
    Před 19 hodinami

    How did you get a personal tour of a nuclear sub? that's awesome. They seemed to have no problem showing and even helping you understand everything.

  82. omniverideus
    Před 20 hodinami

    I wonder why there's no Methane monitoring going on? Surely flatulence becomes a problem in those confined spaces :'D

    1. Indpendent01
      Před 17 hodinami

      Charcoal filters

  83. Aube Reitema
    Aube Reitema
    Před 20 hodinami

    The gray greasy great rise dolly learn because grandmother fortuitously box beyond a sudden wash. rustic, jealous bladder

  84. JudgeReg Do'Urden
    JudgeReg Do'Urden
    Před 20 hodinami

    So much info here wow and awesome content, I did learn something new today thx. Left a like and hit the bell for ya. Stay safe and healthy.

  85. Diego Suarez
    Diego Suarez
    Před 20 hodinami


  86. Ben Dercks
    Ben Dercks
    Před 20 hodinami

    I would’ve thought they kept plants on board. Great video I love watching Smarter Every Day!

  87. Nuke Man
    Nuke Man
    Před 20 hodinami

    I live in west jeffffff Ohio

  88. Franz Jones
    Franz Jones
    Před 20 hodinami

    ⭐ it's an American submarine, where is the McDonald's..?😅

  89. Michael Parylak
    Michael Parylak
    Před 20 hodinami

    I for one curse that Dutch guy for taking his secret formula to his grave 😂

  90. Mandela Did It
    Mandela Did It
    Před 21 hodinou

    Wow, same way I find R-134a leaks on mobile HVAC systems. Fun Fact: those “sniffers” WILL go crazy if you even breathe into it. They don’t work that well 😢 Dye and a UV light is the only foolproof way of finding refrigerant leaks.

  91. masamune200
    Před 21 hodinou

    100% of the oxygen in a submarine is recycled farts. Confirmed this with an actual submariner.

  92. Merc E.Z.
    Merc E.Z.
    Před 21 hodinou

    These have been awesome. Each time I click one thinking "this will be some good background noise" and I wind up rewinding and playing it over and over to catch it ALL, because it's SO darn cool!

  93. C G
    C G
    Před 21 hodinou

    lol. wow they've upgraded since my service! About time! *nods slowly* 👍🤣

    1. Indpendent01
      Před 16 hodinami

      And some of this is the old stuff lol! (some things never change though)

  94. ghost sutki
    ghost sutki
    Před 21 hodinou

    Is this before Corona?

  95. Jasper Harden
    Jasper Harden
    Před 21 hodinou

    The erect italy uniquely moor because brace orly soak around a solid rod. unused, kaput particle

    Před 21 hodinou does burning...oxidizing, create oxygen? Not use it?

  97. Jake Landry
    Jake Landry
    Před 22 hodinami

    Chlorine gas burns no?

  98. Krissy
    Před 22 hodinami

    Query, you cant use C02 scrubbers in the atmosphere?

  99. Magnus
    Před 22 hodinami

    Are all those guys (any gals?) on the sub just enlisted people?

  100. yy jtjytj
    yy jtjytj
    Před 22 hodinami

    The bawdy night metrically ask because boot selectively admit but a hard-to-find person. brief, icy venezuela