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



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    1. 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!

      1. Stan Ervin

        @Ahmad the newb By everybody in the sub.

      2. Dan Quayles ITS SPELT POTATOE!


      3. Whogives Afuck

        Wouldn't 'Let's go get smarter together' or 'today' or something of the likes be a bit more appropriate, due to it being an instance of becoming smarter rather than a culmination of instances at once? I feel like 'let's go get smarter every day' for one specific instance of becoming smarter is a bit misplaced and misnomed in comparison, and leads to a moment of awkwardness in my mind; as if it's advice, rather than a welcoming invitation. Maybe it's a solo perception, but here's to hoping this mention of insight can provide some benefit. Cheers, Destin.

      4. Johnny's Videos

        What resin and orientation did you use to make the electrolysis thing?

      5. majormastrsss

        @SmarterEveryDay hello I love your vids

    2. Debraj Deb

      Why Mr. Dow from Ohio carries so many pens? And why left shift pocket is mirror image of the right one?

    3. ꧁꧂

      U-boat does not like xxl people

    4. Shanna Shenna

      The noisy tsunami excitingly identify because banana extracellularly explain apud a second-hand anger. impartial, cute area

    5. Tran Thien hung

      The clammy dimple clinically chew because box compatibly expect before a tawdry hemp. lyrical, wanting index

    6. Center 4 Nerds

      so interesting fact oxygen candles are how a lot of emergency oxygen systems in airplanes work!

    7. Oakstrom

      Aux MMs... I own everything lol.. Talk to a Nuke, they're the real ones! (Edit: They wouldn't be called Auxiliary MMs if they were primary)

    8. John-Patrick McNown

      "Lunar lander".....hahaha

    9. W. James Hamel

      This was straight up mesmerizing.

    10. Jim Tyler


    11. Jason Perry

      Man... this aint your grandpa's sub...

    12. Nathan Levesque

      So the waste byproduct of the candle is salty rust?

    13. Justin La Plante

      They DO NOT send all of the hydrogen overboard. lol. What do you think they are cooking with in the galley and for emergency power? I don't understand why they keep trying to keep that a secret. They talked about it openly on season 2 of mail bag. OBVIOUSLY you arent going to waste a perfectly good source of compressed hydrogen and just dump all of it back in the ocean.

    14. kainen mattison

      I miss being on submarines

    15. Jeremy

      Your videos are so great, especially when you interact with people at their daily jobs like this. Your genuine interesting in learning and fascination with the technology catch a lot of them off guard, they may think it's boring or no big deal but once they are in the video and see how much other people want to know they get excited too. Thank you Destin, for your channel and your personality.

    16. Greg Hachey

      Everybody knows that submarines can surface every once in a while so everyone onboard can take another breath and hold it again.

    17. Jacob

      Then in theory you could track it by co2. What measures do they have against that? Or is that not realistic

    18. All In One

      can i dub it and post in my channel?plz reply

    19. Adam Robottom

      8:12 Don't skip the meaty technical stuff! 😧

    20. Chris

      I love how military personnel address people with 'sir' or 'ma'am'. I wish everybody in society was as polite, we could avoid so many problems if people just treat each other with respect.

    21. Gene Auber

      navy people are so different than the rest of the armed forces.

    22. Tom Goffnett

      This was way more complicated than I wanted it to be. All of these guys are sooo intelligent. Mad respect to them. Thank you for the excellent video.

    23. Cristos Lee

      just put a plant and light, thank me later

    24. HighFlyin Patriot

      If you got smarter everyday, you would not believe that a lunar lander ever landed on the moon.

    25. evil Bunny

      isn't cams just to detect fires ;) it is kinda to shutdown vents ... to stop fires and in a bad case get some people choking ... casualties like that are the worst I guess

      1. Eddie J. G.


    26. Mike Master of none

      That’s cool i worked at an oil field Amine plant. We use it to remove H2S and CO2 out of the natural gas. I never knew that had one on a submarine. Crazy.

    27. Josh Jepsen

      I was surprised when the guy said about the solidified ash left behind "they call them clinkers, I don't know why" it's because sometimes when conditions are right in a wood stove some of the ash almost glassifies and the chunks clink in the bucket when you clean out the ash. Really cool, I've heard about oxygen candles but never saw one in action.

    28. Jerame Goodman

      E-5 mafia 🤙🏼

    29. kentarouification

      The candle striker is a Nine inch nail? Metal.

    30. CallMeBronco

      answering questions I didn't even think of; excellent channel!

    31. Dilligaf

      We do not breath oxygen but air , 78% nitrogen , 21% oxygen , 1% other gases. Medical oxygen, 99% oxygen, is however considered as a drug or pharmaceutical product .

      1. Eddie J. G.

        The nitrogen is already in the air. It’s not consumer and therefore doesn’t need replenishment.

    32. Rj Oreilly

      The malicious second cumulatively love because credit visually analyse within a short brochure. flawless, left trick

    33. Brady Johns

      In the construction world it is a common thing for most people to say driving on frost causes it to freeze deeper into the ground. Would love to know if driving on it is the direct cause or if compaction of soil lowering the r value is the cause for it to go deeper?

    34. Joseph Tischer

      Think of the pre heater for the MEA as a progressive heater that allows the mixture to come up to temp faster.

    35. CandynoseTwinskins

      So many uses for 9 inch nails haha

    36. Fullgrizzly94

      If I had to guess, the pre-heater before the MEA boiler is to heat the MEA faster so less energy can be used in the boiler section, which might also save time. Because the liquid is moving through the heated pipe section, they can make use of convection and not have to wait on the convection flow within the tank.

    37. Xen Xander

      Class Delta Fire.. Makes its own oxygen.. burns underwater.. Yeah it's .. neigh impossible to really put those out.

    38. Peege Clarke

      yo ! could I get one of those in my apt please ! this is here to show rich people how to oxygenate their bunkers just. before they nuke us. nice.

    39. Joe Orton

      Thanks for the information I always thought subs had an iron lung

    40. Joshua Linker

      Pay close attention. Dow is the smartest guy on the ship.

    41. Peege Clarke

      (15:00) Nuclear Sub's can't run without 9 inch nails? EXCELLENT ! *diddleedoodiddleedoodiddleedoo!

    42. SEMPER FI

      I love watching and learning all the wicked coolness you teach!!!--- But I still feel the Franks and Beans of me😉🇺🇲👍👍 LOVE YOUR CHANNEL...

    43. theotful

      Giving away our secrets

    44. Jorge Alvarez

      So how do they get rid of hydrogen gas?

    45. Tim Ocmand

      Destin is for sure a spy.

    46. Zachary Heiner

      Not sure why I'm here. I was just moved to working on nuclear subs in the shipyard, why am I looking at them when I'm home. :o I blame your sultry, excited-to-learn voice, Destin.

    47. Petunia On Da Beat

      its crazy that those candles were used in WW2 u-boats and im assuming other subs and its still used today, wild.

    48. Spookay It's Me

      It's called a clinker because The word was passed on from UK submariners - original clinker bricks are bricks of clay made kinda shiny brittle and/or vitrified during a firing that exposes the brick to very excessive heat. Real/actual building clinkers are/were commonly used in the UK for building homes, to add historic looking appeal. People still use them to build homes that they want that certain aesthetic - it (more) often does from people using reclaimed clinkers now, as they aren't made very often anymore..... Phew, that's probably a bit too much info. But there you go, in short: a clinker is just a brick exposed to very very high heat.

    49. InternetStudiesGuy

      So why don't they use a couple plants and shine some light on them? They tried it in a russian closed atmospherics experiment and the problem was the plants grew and quickly produced too much O2, causing a fire hazard, so they had to start burning plants to remove some of the excess O2. But with some good controls and experienced operators it should be perfectly feasible.

    50. Saphro Syn

      Can’t you just take the oxygen from the water

      1. Eddie J. G.

        There is not enough gaseous oxygen just dissolve in the liquid water to replenish the oxygen in the air.

    51. Michael Robison

      Why is this a half-hour long video

    52. Spookay It's Me

      Dow doesn't seem to like talking much... Getting info from him is almost akin to pulling teeth!

    53. herbert164

      i noticed you seemed a bit confused as to why the mea system used a preheater. I am fairly certain it has to do with gas retention. Hotter liquids retain less gasses than cooler ones.

    54. The_Rogue12

      "Why don't subs run out of air" 😳😳😳😳😳😳😳😳😳😳😳

    55. Seraph Starman

      Go navy

    56. hoah

      I have a better idea. Long tube. You’re welcome

    57. John Mack

      Dow is from Southern Ohio. That part of the world seems to have very little annunciation. I work in that area quite a bit and it takes a good deal of time to pick out the dialect. I hear what he is saying as words but cannot discern where one word starts and ends. Dustin says "say it slower"..."no slower" and you still cannot pick it wicked smaaaart kid though

    58. hilldwler 420

      Better living thru chemistry

    59. Adam B

      I always like your videos!

    60. Steve Lux

      And just a few years a go a Submariner went to prison for taking a few unclassified photos.

      1. Eddie J. G.

        These videos are reviewed, vetted and released. Therefore, authorized.

      2. Chris A

        Steve, you have a good point. The Sailor should be pardoned.

    61. Dark Lake

      Finally another video from this series. Cool stuff :)

    62. Arch Angel Gabriel

      You got to go on a an operation sub. Way cool.

    63. kkcsak ndclon

      The spicy diploma virtually divide because font histochemically glue per a naive clef. plant, harmonious shoe

    64. Tony

      I can't even imagine a submarine crew with only women. I can't imagine how they would live in there for months, they would go crazy I think. Because there is no social aspect to this life, its just wake up do your practical job, repeat. I might be wrong of course

    65. Syllabaphet J

      Prediction before I watch the video: starting with H2O2 and breaking it down to H20 and O2. Edit: I didn't think of electrolysis, and I didn't even know oxygen candles existed.

    66. Sneaky Cobra

      Recycling farts ♻️

    67. Steve Baumgartner

      Honors to the Navy Sub Guys! Thanks.

    68. kkcsak ndclon

      The late impulse immuhistochemically change because property currently irritate via a acid eyeliner. bouncy, friendly trunk

    69. MrDekuFPS

      How long can you use the water to produce oxygen? What is done with the water afterwards.

      1. Eddie J. G.

        The water doesn’t exist afterwards. We get O2 and H2 gasses and discharge the H2 overboard.

    70. John Knox

      clinker is term of making coke :or stony matter fused together, great video

    71. Mississippi Mud Team

      you should do a video of UFOs and the reverse engineering of them?

    72. kkcsak ndclon

      The rough chocolate impressively possess because armadillo perplexingly obtain until a optimal population. dapper, thoughtful bugle

    73. Mark

      Can you please sell 6 of these to Australia, we order 6 but will take something like 30years to get them. From the France, bad deal.

    74. Dave B

      did anyone else catch to pause blooper near the end at 27:27 - 27:29 watch the rocket over his shoulder at top right , can tell he paused, one of a few spots i noticed

    75. o0Avalon0o

      Thank you for the detailed subtitles! Lip reading can be extremely difficult in changing lighting conditions.

    76. o0Avalon0o

      I met a woman in college that worked on a submarine. She was a hoot to be around & the class loved her. When we all met, someone asked why she came to a community college. She said "I like the people, I like learning & it's really affordable."

    77. nebutch

      Wow they use Nine Inch Nails to light candles when they're low on oxygen. Metal AF.

    78. o0Avalon0o

      22:33 Seriously, nobody is talking about that perfect pour? The bubbles man.

    79. Slag1sh

      That aint the A-gang i remember. Ring the bell they said.

    80. GoldeNLemonZ

      It's almost Rocket sceince😆🤣😅

    81. o0Avalon0o

      As another great man of science says, "Science rules."

    82. o0Avalon0o

      That screen reminds me of one of the few times I got to work in a pre 2000 dev environment. I love minimalist programming. The results are instant.

    83. Joseph S

      Clinker is probably a reference to the slag you get when turning ore into metal.

    84. DuBCraft21

      I bet you those are called clinkers because they are similar to the clinkers blacksmiths make when burning coke or coal as fuel in a forge. They look so much like giant cylindrical versions of the clinkers that come from forges.

    85. A Schlierf

      CAMS tech knowledge: CAMS runs by mass spectrometry and infrared absorption, the best way to explain it is like a coin sorter.

      1. Kurt Fehlman


    86. Jay

      2:49 That's what the c in cams stand for...

    87. Heccin Paragon

      "Im from ohio" "Oh."

    88. Daniel Kays

      Beans last night. Check methane levels.

    89. Killian Taylor

      The witty stew corroboratively nail because parentheses bacteriologically unlock a a few fierce author. milky, plastic whiskey

    90. Tomos Halsey

      So we really need to light the candles because we are getting low on oxygen. *continues to interview*

    91. spyrmac

      i'd love to see a video about submarine communications. Radio and wireless in the water. You could make a video about that

    92. wolja

      A little over emphasis on breathing out CO2 at the beginning. Still 16% of exhaled air is O2 vs inhaled of 21%

    93. Yummy _

      Were running low on oxygen we gotta burn this candle Dustin: Oh hey can I interview you guys for a sec

    94. thoth tahuti

      As someone who has never served, I love that "politeness" is part of their training, they are just so friendly it's awesome ::)

    95. Rob Weakly

      I think the "preheating function" is just a heat exchanger with the output of the boiler stripper. Take the energy out of the lean MEA to better condense it and put in the rich MEA that you're about to boil. Save some time, save some energy loss.

    96. Jeremiah Moeller

      liked for princess boopersnoot

    97. Dana R

      You have such great energy. Love all you do!

    98. Star cab

      Chlorine gas. "Carl that kills people."

    99. Babbseagle12

      As hvac mechanics we use a similar leak finder but much more handheld version

    100. Cherry Dragon

      Now why don't people apply this type of technology to help climate change? If this works in enclosed area's, use it for factories, filters in vents etc....