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,


  1. SmarterEveryDay

    SmarterEveryDay10 ngày trước

    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!

  2. Daye Jung

    Daye Jung23 giờ trước

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

  3. Isaac Imran

    Isaac ImranNgày trước

    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

  4. Troule9 T

    Troule9 TNgày trước

    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.

  5. Dylan K

    Dylan K2 ngày trước

    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.

  6. Dylan K

    Dylan K2 ngày trước

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

  7. Cameron McGuire

    Cameron McGuire5 giờ trước

    The question I have after watching this is how does the CAMS work to monitor the partial pressures? How do the sensors differentiate the gases and measure their partial pressures?

  8. Leander

    Leander5 giờ trước

    i love these submarine videos

  9. SafouaneSouidii

    SafouaneSouidii5 giờ trước

    just put a lot of plants there bruhhhhhh

  10. therob39

    therob395 giờ trước

    26:50 And still you took out one ear plug 😁

  11. Isaac Waschbaer

    Isaac Waschbaer6 giờ trước

    Plants, A lot of Plants

  12. Garrett Ord

    Garrett Ord7 giờ trước

    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

  13. INeed333Quid

    INeed333Quid7 giờ trước


  14. far22186

    far221867 giờ trước

    I thought it was just a long snorkle

  15. AJ

    AJ7 giờ trước

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

  16. Mike Rogers

    Mike Rogers8 giờ trước

    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.

  17. Rui Pedro Silva

    Rui Pedro Silva8 giờ trước

    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.

  18. Peter Lundholm

    Peter Lundholm8 giờ trước

    New sub ( pun intended ) here

  19. CxLivingIn LA

    CxLivingIn LA8 giờ trước

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

  20. David Trimm

    David Trimm9 giờ trước

    Terrific video - thanks

  21. Tizona Amanthia

    Tizona Amanthia9 giờ trước

    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.

  22. Tizona Amanthia

    Tizona Amanthia9 giờ trước

    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.

  23. Mark Gregory

    Mark Gregory9 giờ trước

    Thank you for this beatuiful video! God is good!

  24. u b 3

    u b 310 giờ trước

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

  25. AdemKaraLIVE

    AdemKaraLIVE10 giờ trước

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

  26. FifaMaster7922

    FifaMaster792210 giờ trước

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

  27. StripiestWig33

    StripiestWig3310 giờ trước

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

  28. Timm

    Timm10 giờ trước

    Very nice video! Thank you

  29. alexthesage

    alexthesage10 giờ trước

    Ну и щеглы служат на подлодке...

  30. James

    James10 giờ trước

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

  31. imocchidoro

    imocchidoro11 giờ trước

    I feel smarter today!! Thanks

  32. Issac Meara

    Issac Meara11 giờ trước

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

  33. Onkar Mane

    Onkar Mane11 giờ trước

    BOAT 🙂

  34. Stian Karlsen

    Stian Karlsen11 giờ trước

    Things i never knew was so interesting :-)

  35. Onkar Mane

    Onkar Mane12 giờ trước

    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

  36. Francesco Favro

    Francesco Favro12 giờ trước

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

  37. Gerald Wagner

    Gerald Wagner12 giờ trước

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

  38. Roger Fernandez

    Roger Fernandez13 giờ trước

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

  39. Ace. S

    Ace. S14 giờ trước

    Its because subs like getting choked.

  40. Sphinx Arbitron

    Sphinx Arbitron15 giờ trước

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

  41. Balaji Ravikanti

    Balaji Ravikanti15 giờ trước

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

  42. Nicholas Jensen

    Nicholas Jensen15 giờ trước

    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)

  43. brent pieczynski

    brent pieczynski16 giờ trước

    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.

  44. mike krigg

    mike krigg16 giờ trước

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

  45. Hanly Sabdani

    Hanly Sabdani17 giờ trước

    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.

  46. master shooter64

    master shooter6417 giờ trước

    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

  47. Crusher O'Lies

    Crusher O'Lies6 giờ trước

    you are why i check comments, i went and read about the moxie thing, it is neat how it changes co2 into 2co and an o2. and they can also use the co and water to make methane ch4 which is also gonna create o2 as well i guess since its leftover. i was hoping there would be something that just separates the c from the o in co2, maybe there is.

  48. dudelikesWoW

    dudelikesWoW17 giờ trước

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

  49. XavierBetoN

    XavierBetoN17 giờ trước

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

  50. Hanly Sabdani

    Hanly Sabdani17 giờ trước

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

  51. Chickengenius420

    Chickengenius42018 giờ trước

    How do you get smarter by listening to an idiot?

  52. Gregory Tanghe

    Gregory Tanghe17 giờ trước

    elaborate please?

  53. Rodney Almeida

    Rodney Almeida18 giờ trước

    Is that Trent Palmers brother?

  54. G

    G18 giờ trước

    Thank you much. This is very educative.

  55. Layarion

    Layarion18 giờ trước

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

  56. Adam Skinner

    Adam Skinner19 giờ trước

    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.

  57. Emmy Mac

    Emmy Mac19 giờ trước

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

  58. RAVEN_SPRING_9000

    RAVEN_SPRING_900019 giờ trước

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

  59. Κώστας Μαρπίνης

    Κώστας Μαρπίνης19 giờ trước

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

  60. Dane Lunderman

    Dane Lunderman20 giờ trước

    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.

  61. Mareill Maieqs

    Mareill Maieqs20 giờ trước

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

  62. Skvora Limited Media

    Skvora Limited Media20 giờ trước

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

  63. Skvora Limited Media

    Skvora Limited Media21 giờ trước

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

  64. Damian Bouras

    Damian Bouras21 giờ trước

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

  65. Andrew Farniok

    Andrew Farniok21 giờ trước

    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

  66. Lagum Lemoni

    Lagum Lemoni21 giờ trước

    Thank you for teaching me to make chlorine gas

  67. Andrew Parker

    Andrew Parker21 giờ trước

    1:00 gotta love that Mythbusters reference

  68. LumberJack1956

    LumberJack195622 giờ trước

    I have a Kyle Busch impersonater at 10:21.

  69. Foehammer

    Foehammer22 giờ trước

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

  70. DanielWest1990

    DanielWest199022 giờ trước

    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.

  71. Will Cee

    Will Cee22 giờ trước

    Did someone say... lean 👀

  72. I SEE You

    I SEE You22 giờ trước

    WOW..So smart..

  73. NA NA

    NA NA23 giờ trước

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

  74. GenericName

    GenericName23 giờ trước

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

  75. Ben W

    Ben WNgày trước

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

  76. James Mancuso

    James MancusoNgày trước

    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..

  77. Hunter Elliott

    Hunter ElliottNgày trước

    Didn’t say coke. Not from Alabama

  78. jay marks

    jay marksNgày trước

    I love you man you make my day

  79. Logan Clementi

    Logan ClementiNgày trước

    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.

  80. Brian Shelton

    Brian SheltonNgày trước

    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?

  81. CaffeinePizza

    CaffeinePizzaNgày trước

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

  82. Jacinth

    JacinthNgày trước

    I learned a lot from this, thanks!

  83. Flinch Fu

    Flinch FuNgày trước

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

  84. El Capitan

    El CapitanNgày trước

    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.

  85. Matt Bodkins

    Matt BodkinsNgày trước

    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.

  86. Alex G

    Alex GNgày trước

    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.

  87. Cook group Legion Notify

    Cook group Legion NotifyNgày trước

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

  88. William Soots

    William SootsNgày trước

    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. ??

  89. William Soots

    William SootsNgày trước

    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.

  90. 46n2

    46n2Ngày trước

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

  91. Chris

    ChrisNgày trước

    Another way of CO2 scrubbing is Calcium Bicarbonate and water

  92. Jimmy Pack

    Jimmy PackNgày trước


  93. Notregular Please

    Notregular PleaseNgày trước

    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

  94. sir rebral

    sir rebralNgày trước

    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.

  95. omniverideus

    omniverideusNgày trước

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

  96. Indpendent01

    Indpendent01Ngày trước

    Charcoal filters

  97. Aube Reitema

    Aube ReitemaNgày trước

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

  98. JudgeReg Do'Urden

    JudgeReg Do'UrdenNgày trước

    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.

  99. Diego Suarez

    Diego SuarezNgày trước


  100. Ben Dercks

    Ben DercksNgày trước

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

  101. Nuke Man

    Nuke ManNgày trước

    I live in west jeffffff Ohio

  102. Franz Jones

    Franz JonesNgày trước

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

  103. Michael Parylak

    Michael ParylakNgày trước

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

  104. Mandela Did It

    Mandela Did ItNgày trước

    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.

  105. masamune200

    masamune200Ngày trước

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

  106. Merc E.Z.

    Merc E.Z.Ngày trước

    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!

  107. C G

    C GNgày trước

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

  108. Indpendent01

    Indpendent0123 giờ trước

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

  109. ghost sutki

    ghost sutkiNgày trước

    Is this before Corona?

  110. Jasper Harden

    Jasper HardenNgày trước

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