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


  1. SmarterEveryDay

    SmarterEveryDay6 日 前

    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. Gw Builder

    Gw Builder5 時間 前

    @Stan Ervin The idea is plausible; however, the lower the efficiency of the plant the more toxicity is generated. I think that is where the problem begins because the benefit verse the compound detriments create a negative cycle. In the natural environment those conditions can be overcome, but in a dependent environment where the oxygen generation is a necessity, those negatives make a no go situation. I like your determination, there is definitely an answer somewhere.

  3. Stan Ervin

    Stan Ervin6 時間 前

    @Gw Builder Thank you for the input/clarification. My thoughts were leaning towards the use of ultra efficient low power consumption LEDs in a spectrum of sufficient fine tuning to obtain maximum O2 generation, perhaps utilizing arrays of Fresnel lenses. Just seems plausible. I feel like it could be utilized to oxygenate the vessel at least in a supplemental role with other methods that are currently implemented, even if a 25% level of impact is realized.

  4. Chip Elliott

    Chip Elliott8 時間 前

    How many candles do these subs carry?

  5. Dan Quayles ITS SPELT POTATOE!

    Dan Quayles ITS SPELT POTATOE!8 時間 前

    @Brett Moore I know about the submarine o2 but how about the iss? Have your tried a search engine? Tell an person an answer they will ask simple questions on and on! Teach a person to use a search engine then you dont have to waste time reading simple questions that can be answered with a search engine!

  6. Gw Builder

    Gw Builder9 時間 前

    @Stan Ervin Simple answer. The Chinese actually tried this exact experiment on the dark side of the moon in recent years with complete failure. Other similar experiments are being done on the space station with some success, but sunlight is still necessary. Some micro organisms were tested with success, but that information is apparently not available to the public. The idea is reasonable until put into reality. All known oxygen producing plant life (including algae) sufficient for human breathing require some form of sunlight in their photosynthetic process for oxygen to be produced. Submarines have been in existence since the Civil war, if there was a way to utilize plants in some form or other I'm sure the scientific community would be celebrating it right now. The Mars missions depend on such a discovery. There are multiple test facilities around the world challenging people to survive in the most inhospitable environments in preparation for the Mars missions and oxygen generation is the number one priority, water is second, and food, survivability along with many other situations follow in priority after that. In this instance there is overwhelming evidence in the proof of concept phase to eliminate that particular possibility, at least for now. I agree that there is always new information developing and the idea is absolutely reasonable to continue research because perhaps someone will indeed discover the missing ingredient. I actually grow, propagate, graft, and merge different species of plants and trees. Trying to maintain these plants in their optimal environment is challenging enough, imagine the types of modification required to sustain them without those systems. I am sure some of those modifications are probably happening on the station. The purpose is to go beyond the information we already have and explore new possibilities. I think the plant and algae ideas have huge merit; however, there are significant setbacks because with reduced sunlight oxygen production is reduced and toxicity is increased. The unknown is where the real possibilities are just waiting to be discovered.

  7. Sym doxe

    Sym doxe分 前

    Woah that's not a name you hear everyday that's a really cool name Dow, Dow Jones

  8. Daruween

    Daruween11 分 前


  9. Tom Baker

    Tom Baker13 分 前

    Why are they wearing hats? Is the sun in their eyes?

  10. Daniel Cabral

    Daniel Cabral16 分 前

    I'm literally learning about osmosis and electrolysis on school at the moment.

  11. JaThe Winner

    JaThe Winner28 分 前

    I have two questions left from the torpedo video: 1. Where does the additional sea water that went into the second tank go? 2. Why do we give bullets a spin around their axis but not torpedos?

  12. 喬冶

    喬冶30 分 前


  13. Miles C. Anthony

    Miles C. Anthony34 分 前

    Oxygen stores, filters 'n scrubbers. Adios.

  14. Jez

    Jez35 分 前

    For the non native english speakers who struggle with the accents, the noise and the technical terms in this video, turn on the subtitles :)

  15. Nabman11

    Nabman1137 分 前

    That isn't Dow. I saw Austin Evans steal his uniform and sneak inside the submarine after he spent a week long bender smoking crack and playing MGS.

  16. MrFrosty Vlogs

    MrFrosty Vlogs39 分 前

    cant they use a thermal camera or temp camera to find the leaked pipes? that would be easier and fast

  17. Random Entertainment videos

    Random Entertainment videos39 分 前

    2 days later at school, how do you make oxygen in a submarine,,,,,,,,urinalysis

  18. Krabbe

    Krabbe47 分 前

    Its the kosatka!

  19. nExoR LU

    nExoR LU50 分 前

    can any of these methods be used on megascale? e.g. for cities

  20. John Rosario

    John Rosario54 分 前

    @lav luka

  21. SafetyThird

    SafetyThird時間 前

    Thanks man, always wanted to know this

  22. Erbi Gimbi

    Erbi Gimbi時間 前

    It's totally fascinating.

  23. Davy Jones

    Davy Jones時間 前

    Clinkers: a term from the coal burning boiler days when spend COAL ash had SLAG deposits that were called clinkers. The Clinkers were more of a solid mass then a powder ash.

  24. John Cook

    John Cook時間 前

    The fragile man biosynthetically object because increase erroneously bat save a steadfast blowgun. marvelous, deeply colt

  25. LynxEng

    LynxEng時間 前

    They probably spend more time repairing that Xerox MultiFuntion Printer than they do repairing anything on the sub

  26. SSS Smile

    SSS Smile時間 前

    Destin looks like Austin with a cap

  27. Octo Games

    Octo Games時間 前

    Video Idea. Will you consider an episode on gold and off world mining and how mining elements off world would effect traditional market value and manufacturing?

  28. Josemanuel Piceno Vasquez

    Josemanuel Piceno Vasquez時間 前

    Is it acceptable to call it a boat when it's a sub?

  29. Eddie J. G.

    Eddie J. G.40 分 前

    Yes. Submarines are affectionately known as “boats”.

  30. Overdose Tech

    Overdose Tech2 時間 前


  31. Viva Wö

    Viva Wö2 時間 前

    Why don't they simply use plants?

  32. Eddie J. G.

    Eddie J. G.39 分 前

    How many plants do you think you’d need to make enough oxygen for 150 people? How much fresh water would they use up?

  33. Serial Chiller

    Serial Chiller2 時間 前

    did u see that bass pro cup? i wont tell the time go look for it

  34. DimljenaRiba

    DimljenaRiba2 時間 前

    Im happy I witnessed a time where actual humans were on submarines! So much science... *wow*

  35. Themagicphonebooth Q

    Themagicphonebooth Q2 時間 前

    So technically a submarine can be in space?

  36. treverios

    treverios33 分 前

    Not for long without the water for cooling and electrolysis. Furthermore, the hull was not designed for the low temperatures in space.

  37. Ryder Scheeren

    Ryder Scheeren2 時間 前

    The receptive sushi utrastructurally gaze because bank perceptually fasten except a silky grasshopper. luxuriant, neighborly tom-tom

  38. Brainstorm Surge

    Brainstorm Surge2 時間 前

    Raycon earbuds suck. Good marketing, terrible product.

  39. Brainstorm Surge

    Brainstorm Surge3 時間 前

    Reminds me of playing Oxygen Not Included.

  40. Gerard Ligonde

    Gerard Ligonde3 時間 前

    The jazzy channel biomechanically nest because mistake chronologically rain worth a callous river. colossal, anxious sleep

  41. Eric He

    Eric He3 時間 前

    Subs=subscribers get oxygen by breathing

  42. Daniel Sánchez

    Daniel Sánchez3 時間 前

    Nothing interesting in the comments, I saved you 5 minutes of bs.

  43. Michael Pritchard

    Michael Pritchard3 時間 前

    Why don't subs run out of oxygen? We don't.

  44. Hermitey Perez Triana

    Hermitey Perez Triana3 時間 前


  45. WellAaron

    WellAaron4 時間 前

    great now it made me want to play more oxygen not included

  46. rob ten tije

    rob ten tije4 時間 前

    sounds pretty corona proof air flows true the boat

  47. Lv.99 Mastermind

    Lv.99 Mastermind4 時間 前

    Bruh just put gills on the sub

  48. Erick

    Erick4 時間 前

    This guy comes off rude

  49. Oqii99 Hhp87

    Oqii99 Hhp874 時間 前

    The tacit shorts electronmicroscopically retire because alibi technologically hop beyond a busy camel. future futuristic, utopian rhinoceros

  50. illesizs

    illesizs4 時間 前

    How complicated would it be to electrolyse CO² into carbon and oxygen?

  51. Dan Lo Fat

    Dan Lo Fat4 時間 前

    Oh they're like the Galaxy 150 earbuds I'm kind of case same kind of charging yep

  52. Melissa8472

    Melissa84724 時間 前

    really cool video!

  53. Google User

    Google User4 時間 前

    West Jefferson, Ohio, right on

  54. Patrick

    Patrick4 時間 前

    Nice Miracle on Ice picture 2:43

  55. Dan Lo Fat

    Dan Lo Fat4 時間 前

    Not only is an oxygen candle cool it's also super quiet so if they got to run silent it can still breathe for a long time

  56. Jacob Nations

    Jacob Nations4 時間 前

    *shines light directly on his face*

  57. Mohamed Amine Trigui

    Mohamed Amine Trigui4 時間 前

    The whole game was a hide and seek

  58. Roger Finch

    Roger Finch4 時間 前

    So, while we are talking "science", you do realize that you can't just "hook" up anything to a nuclear reactor to get electricity........right ? A reactor merely generates heat energy in a primary loop, which in turn heats up water in a secondary loop to form steam for a turbine generator which is what creates your electricity.

  59. Charles Quackenbush.

    Charles Quackenbush.3 時間 前


  60. Dan Lo Fat

    Dan Lo Fat4 時間 前

    What do they do for nitrogen add

  61. Eddie J. G.

    Eddie J. G.37 分 前

    We don’t need to replenish the nitrogen in the air; nothing consumes it.

  62. KopaZ

    KopaZ5 時間 前

    TLDR: 2 H2O = 2 H2 + O2 AKA electrolysis.

  63. † Masterhp †

    † Masterhp †5 時間 前

    Me when I'm playing oxygen not included

  64. Michael Spinelli

    Michael Spinelli5 時間 前

    Dow explains things about as well as submarines fly.

  65. Anton Belaschenko

    Anton Belaschenko5 時間 前

    I am not used to seeing him with out the hat

  66. Neko Slacker

    Neko Slacker5 時間 前

    It’s just a long tube like a snorkel

  67. TheBros2theend

    TheBros2theend5 時間 前

    Jesus Christ loves you

  68. founder of coreism

    founder of coreism5 時間 前

    They could use the hydrogen as a fuel source instead on dumping it. And fresh water. HHO gas (hydrogen) exhausts 100% pure water.

  69. Eddie J. G.

    Eddie J. G.36 分 前

    That reaction takes the oxygen back out of the air.

  70. Skyler Baird

    Skyler Baird5 時間 前


  71. DontRobMe13

    DontRobMe135 時間 前

    9:01 - by creating oxygen via electrolysis you also create hydrogen. having an reactive / explosive gas in a sub is dangerous so... how do they get rid of it?

  72. Eddie J. G.

    Eddie J. G.35 分 前

    Straight overboard through a “tailpipe”.

  73. aLiEn

    aLiEn5 時間 前

    Thanks a lot for this knowledge.

  74. Toxichammertoe

    Toxichammertoe5 時間 前

    No need for extra equipment! Just put alot of plants in there, that solves the problem😉

  75. all the boost

    all the boost6 時間 前

    I used the same style HVAC sniffer at car dealerships as a auto tech.

  76. wolfpackflyboy

    wolfpackflyboy6 時間 前

    @smartereveryday Is this the same candle/chemistry that’s in the EPOS and/or “Dixie cups” on airplanes?

  77. the Yesinator

    the Yesinator6 時間 前

    I am smartly dumb.

  78. Maherda Ekananda

    Maherda Ekananda6 時間 前

    I wonder is this method are also use at aircraft in mission that flying at nuclear warfare such as E-4 Airborne Command Post or WC-135 Constant Phoenix.....?

  79. ideally CHIC

    ideally CHIC6 時間 前

    The old-fashioned supermarket superficially crawl because tugboat regularly hover through a known celery. quiet, adjoining mustard

  80. ScottNJ

    ScottNJ6 時間 前

    Brilliant info. Who knew if you've not been a submariner. No trolling intended, all due respect to PO2 Dow and Destin. 1) PO Dow, please articulate when interviewed. Your service and knowledge are greatly appreciated. 2) Desitn please coach your interviewee.

  81. Saintraft

    Saintraft7 時間 前

    ahh yes... imagine if we had upgraded nuclear tech instead of abandoning it all these decades... fascinating stuff.

  82. Ck digital The Q of 6th

    Ck digital The Q of 6th7 時間 前

    They mastered the production task of O2 to last very long, but not infinate, which is why they surface eventually. This kind of 'Oxygen'nizing'(to nick name it) still renders in excise of carbon build up stored away, which could be combined with other elements, like say hydrogen to conjure food as carbohydrates, so on a planet like Mars, these resource are not to limited, depending where you are or how long you must be there, if humans ever master pure artifical production of atmospher, they wouldn't need a planetary realms to survive.

  83. Eric Starling

    Eric Starling7 時間 前

    I'm an ex A-ganger on an 688I boat. This exact boat type he visited. Awesome memories

  84. ʟᴏɴᴇᴠᴇɴᴛʜᴏʀɪᴢᴏɴ

    ʟᴏɴᴇᴠᴇɴᴛʜᴏʀɪᴢᴏɴ7 時間 前

    Does it really take 30mins to explain this?

  85. Little69

    Little698 時間 前

    Plz make a reverse osmosis video

  86. J Alexander Bill

    J Alexander Bill8 時間 前

    shocking lack of comments on Princess Boopersnoot.

  87. goguhu

    goguhu8 時間 前

    Kink is pretty much Dutch for 'brick'. It's the residue ash from burning, hardening into a ... brick.

  88. Bernie Lomax

    Bernie Lomax8 時間 前

    I used to build the HEX power supplies that run the oxygen generating equipment in the Ohio class. Small company called Treadwell had that contract and they outsourced most of the work to other contractors, we got a lot of that work for 30 years.

  89. Caesar Ong

    Caesar Ong8 時間 前

    I cringed a bit when you said "filtered by reverse osmosis". We in the membrane community usually refers to filtration as anything mechanically separated, ultrafiltration is the cutoff for mechanical filtration, anything with smaller pores/molecular void spaces like nanofiltration and osmotic processes we call membrane separation. It can be a bit confusing since "nanofiltration" has the word filter in the name.

  90. Logan Cook

    Logan Cook8 時間 前

    Ask someone what happens if there is a leak on a nuclear sub. I'd bet the farm they would have a more intelligent answer than "well then we would have a leak". Thanks don petit. Sorry but you mentioned the lunar lander and i remembered when you asked Don about a leak in a space situation.

  91. Eddie J. G.

    Eddie J. G.33 分 前

    Which fluids are you concerned with?

  92. Chuck Whitson

    Chuck Whitson8 時間 前

    I bet with the body odor, facts, bad breath it must smell terrible Inside after months

  93. Eddie J. G.

    Eddie J. G.32 分 前

    We shower.

  94. Grampy Meyer

    Grampy Meyer8 時間 前

    It smells terrible the minute you board.

  95. Woody Wang

    Woody Wang8 時間 前

    Everyone knows people on subs take shallow breaths thats why....geeesh


    RAFIS03 GAMING8 時間 前

    Salam dari Indonesia

  97. Mahesh Babu

    Mahesh Babu8 時間 前

    Really great video brother 💗💗💗💗💗💐💐💐💐💐💐Always God is with you 💐💐💐💐 ஓம் நமசிவாயம் ஓம் நமசிவாயம் ஓம் நமசிவாயம் ஓம் நமசிவாயம்


    RAFIS03 GAMING8 時間 前



    RAFIS03 GAMING8 時間 前


  100. Revtune

    Revtune8 時間 前

    These ships literally have a natural gas plant on board. Amine towers, scrubbers, conditioners, yikes. Those things are jammed packed.

  101. diego g.

    diego g.8 時間 前

    21:35 how many pens does he has to carry?

  102. The banana lord Who rules all

    The banana lord Who rules all9 時間 前


  103. Dilan Singh

    Dilan Singh9 時間 前

    I saw carbon dioxide kill co2 on cams and vent

  104. The chaos system

    The chaos system9 時間 前

    Loved all this information and the candles that’s cool never knew about the candles but everything else expected knew about and keep on with the education much appreciate it and it’s always good to refresh your memory on things that way you can never forget

  105. Darren Swails

    Darren Swails9 時間 前

    20:33 look like an outline of a whale to his right..

  106. André Luz

    André Luz9 時間 前

    clinkers because of cement

  107. Shawn Wilson

    Shawn Wilson9 時間 前

    Thanks for helping me with my fish checkout 👍

  108. Revtune

    Revtune9 時間 前

    We use sniffers in the oil and gas industry to find gas leaks and other harmful gasses such as H2S and explosive gasses.

  109. newbiekunchannel

    newbiekunchannel9 時間 前

    Topic Suggestion!!! "Military MRE" how is made, what is the science behind the calories to an actual soldier is using (carring guns, ammo, supplies)

  110. Eddie

    Eddie9 時間 前

    Cold liquids tend to absorb (for lack of a better term) gasses more readily than warm liquids. This explains why cold amine is sprayed, compressed...etc.

  111. KodyKK

    KodyKK9 時間 前

    To preface this I don't work on a submarine but I have ran amine units. Usually the exchanger to heat up the rich amine before the stripper is exchanging heat with the hot lean amine to cool it before meeting up with the gas, in this case the air. Lean amine usually works best when its somewhere around 15 degrees warmer than the gas it is coming into contact with.

  112. Jay Patterson

    Jay Patterson9 時間 前

    Brilliant and detailed explanation of all the processes. I thought it was much more simple, and I had no idea they had to use oxygen candles and have a controlled metal fire onboard the sub, YIKES!!! Amazing solution but it seems so brute force when operating beside a nuclear reactor!

  113. UShaikh1

    UShaikh110 時間 前

    today we become smarter with dustin

  114. Chucky Cheese

    Chucky Cheese10 時間 前

    That kid is so smart! What a nice lad

  115. Jay Playz

    Jay Playz10 時間 前

    So that’s how pavel stays down there so lomg