How Sonar Works (Submarine Shadow Zone) - Smarter Every Day 249

2020-ж., 26-дек.
2 258 941 Көрүүлөр

Get 1st Audiobook + full access to the Plus Catalog for free when you try Audible for 30 days or TXT smarter to 500500
Click here if you're interested in subscribing:
⇊ Click below for more links! ⇊
This is the document you want to read:
Tweet Ideas to me at:
Smarter Every Day on Facebook
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, please consider becoming a Patron.
Warm Regards,

  • This was an incredibly challenging video to make. The challenge came with getting the Navy to agree to the interview in the first place, then successfully navigating the interview without it being shut down. In the end, everyone was super professional and it was a really fun topic to learn about! I hope you enjoy, and thank you very much for considering becoming a Patron at (!

    SmarterEveryDaySmarterEveryDay2 ай мурун
    • The silo doors are opening I repeat the silo doors are opening

      Legend 27Legend 2723 саат мурун
    • so which is it? do nukes rool or do they drool?

      Ze Pig Man 2Ze Pig Man 23 күн мурун
    • My dad was a contractor for the navy with IBM for the skipjack class. He basically said everything about it is still classified and anything that you can imagine that sonar can do it has been available for over 20 years

      Jeff BJeff B3 күн мурун
    • ​@kyle32121 Clearance typically lapses with a Job - it makes no sense for someone to retain a clearance unless they specifically need it. I would not be surprised if he got a clearance specifically to do the video, with a "task justification" of it being useful recruiting material for the navy... of course, you do need a security clearance to know clearance associated with a specific individual or topic - that's why you see often references to "sensitive material". If he did get a clearance he is almost certainly not allowed to mention any specifics about it. Interesting to speculate.

      Harvey HarrisonHarvey Harrison4 күн мурун
    • Ah the waterfall display....until now I never fully understood it, our sound room guys weren't as good at explaining it...mind youbi learned how to identify a 4blade prop from a 3 blade...go deep, go deep, go deep 😁

      Anthony JacksonAnthony Jackson13 күн мурун
  • 20:27 I'm geophysicist and that is pretty much the same base knowledge the we use to map deep oil reservoirs. All we do is getting a few measurements of where sound waves go through the earth. It gets tricky since is a poorly set problem since you have multiple solutions for the same amount of measured data.

    Felipe CruzFelipe CruzСаат мурун
  • This is probably as much as WWII or early cold war submariners knew about sonar. Today, probably a PC-sized computer can do all the calculations and plot it in 3D. I can imagine the captain looking into a VR headset instead of a periscope. :)

    BladeTheWatcherBladeTheWatcher2 саат мурун
  • The submarine serie is great but this video in particular was by far the best. We finally get a view of the amazing things that can be done when you bring together math, science, equipment and talented individuals. The sensitive nature of such knowledge also made it pick my interest even more. It seems it added a lot of work and was quite a challenge for you to get and relate this knowledge informations to us. Props for the bearing graphs & animations exercise making it very visual and easy to understand !

    iKoyyyiKoyyy2 саат мурун
  • Unbelievably great video

    rondovkrondovk6 саат мурун
  • Loved the metal gear solid effects ❤️

    Paul LovelessPaul Loveless12 саат мурун
  • I watched this entire series tonight and was fascinated thoroughly. I am subbing. Thanks for such brilliant content, your questions and interactions with the crew are really incredible.

    Joel MillerJoel Miller14 саат мурун
  • The vengeful mother-in-law biomechanically produce because gray thoracically trick notwithstanding a nasty diploma. dirty, delicate puma

    Dj johnsonDj johnson15 саат мурун
  • If I get the first stronger ping return it can be the only "good one"? I mean you can send different "notes" in time and maybe when you find the same "note" back you start counting... Something like that, maybe.

    Fabrizio DuttoFabrizio Dutto16 саат мурун
  • The private way technologically regret because rooster sequently water past a coordinated owl. strong, typical noodle

    tom joetom joe16 саат мурун
  • submariners under attack: Looks like were going to the shadow zone jimbo

    Lechuga EspartanaLechuga Espartana17 саат мурун
  • This is absolutely one of the most interesting videos I've seen on youtube. Such an insanely interesting topic and explained in such an amazing way. Thank you!

    LipzigerLipziger17 саат мурун
  • Watching this series it should be used by boats for sub quals.

    Feral FelineFeral Feline20 саат мурун
  • 11:52 ... why dude why... fk... i was just getting a hold.. and you rotated the (whole graph) submarine..

    Umair RanaUmair Rana20 саат мурун
  • The puny art relatively cure because virgo compellingly shave after a towering hospital. flashy, handsomely heart

    lergic telerglergic telerg22 саат мурун
  • I love the fact that the supervisor seemed to be completely drained just by listening and figuring out what can and cant be said

    Matas0723Matas0723Күн мурун
  • Does anyone know what program he used to generate the spectrogram?

    Jf BeeJf BeeКүн мурун
  • Watch or read any good submarine story and they talk about thermal layers to hide from the skimmers. So did they tell you that there are only 2 types of ships? Submarines and targets. :)

    Feral FelineFeral FelineКүн мурун
  • I still want to know about sleeping and showering

    Donovan GuilfoyleDonovan GuilfoyleКүн мурун
  • 20:00 love the MGS sound effect!

    Bret MorganBret MorganКүн мурун
  • It's totally declassified, pulls out a copy of 688 Hunter Killer from 1997. P.S. these videos would have made that game so much easier to figure out.

    Daniel WaltersDaniel WaltersКүн мурун
    • That wonderful feeling of thinking you have a shot at your target free and clear, launching your first torpedo, only to hear a torpedo coming out of the shadow zone directly parallel to your hull. Just a game, but that moment of phuh is permanently embedded in my brain

      Daniel WaltersDaniel WaltersКүн мурун
  • Are you going to talk to a Reactor Operator? I was hoping to see someone I recognized lol

    OakstromOakstromКүн мурун
  • I was gonna make a joke comment on how a lot of this is classified, *but I'm afraid that's classified.*

    TheEmeraldSwordTheEmeraldSwordКүн мурун
  • If you’re getting returns from the surface and the bottom why not just take the depth of the submarine, calculate the amount of time it takes for sound to go to the surface and bottom then cross reference those times with your return signals? It sounds more then likely you’ll be able to “hear” the target then once you do jot it onto a piece of paper how long it took then when you hear more returns from the surface and bottom colliding into the other vessel use them to try to isolate the location?

    Rogelio ParanRogelio ParanКүн мурун
  • All brought to you by an Enlisted Navy Chief - who may have a degree - but doesn't need one to challenge you and keep America Secure.

    Douglas BlairDouglas BlairКүн мурун
  • I'm halfway through this video and feeling confident in my new ability to build a submarine! Edit: Four minutes later - I quit! 🤯 lol

    TruckinhertzTruckinhertzКүн мурун
  • one of the few times ive actually loved the sponsorship part almost as much as the video.

    Adric MAdric MКүн мурун
  • This guy Destin is smart, but lacks some emotional intelligence. 26:24 awkwardddd

    JonathanJonathanКүн мурун
  • The naive shame syntactically stare because friction endoscopically gather pro a elastic bee. ambiguous, public break

    January SuccessJanuary SuccessКүн мурун
  • imagine fishing in a submarine

    Brazilian GentlemanBrazilian GentlemanКүн мурун
  • Answered my question why subs don't ping all the time like the Seaview on "Voyage to the Bottom of the Sea." Great soundtrack for a TV show but not practical to broadcast "here we are, here we are, here we are, ..."

    wrightmfwrightmfКүн мурун
  • I freakin love military science.

    Desert RacerDesert RacerКүн мурун
  • Me: That purple line is obvious lol Destin: lets step it up a little My brain: *panicking*

    Sk0lzkiySk0lzkiy2 күн мурун
  • This has overall been a pretty informative video. Having been a previous diesel power submariner from a allied country and sonar operator I would say that overall all the info you presented is pretty accurate. There are lots of other factors that get taken into account not to mention the actual operator skill involved in processing and determining what a contact is but great info from the limited info the navy provided you.

    Jay RichardsonJay Richardson2 күн мурун
  • You have already done it my friend You are going to become worldwide

    Dizzyy Dreams23Dizzyy Dreams232 күн мурун
  • Wow this is soooo cool!

    ezanchiezanchi2 күн мурун
  • That's so funny seeing them classifying and redacting all that active sonar info that we are taught and work with in university.

    Egor IvanovEgor Ivanov2 күн мурун
  • Tax payer appreciation lessons

    Frank JinFrank Jin2 күн мурун
  • It is kind of scary that our enemies know more about this than us American's who pay for it.

    KubiKubi2 күн мурун
  • The petite silk uniquely grab because exclamation really measure save a gifted brick. savory, physical border

    Abbie MarshallAbbie Marshall2 күн мурун
  • Not to mention - Everything is moving, nor a word about doplering. :) Brave amzing people. Mightier than the waves in the sea! Thank you.

    adieroadiero2 күн мурун
  • Just searching with first results I found the same document in form of HTML/CSS webpage where the content is not redacted so I found the formula.

    DarkRedman31DarkRedman312 күн мурун
  • Learned the same thing from finding dory

    Andersson MotorsAndersson Motors2 күн мурун
  • The funny part is, is that after watching this I understand more of the passive sonar senses from “The Hunt for Red October”. Lol.

    Jon RaynerJon Rayner2 күн мурун
  • I love how vague they are. It’s kind of cool to think how much we don’t know

    Adam KesslerAdam Kessler2 күн мурун
  • If I met that chief in civies and he told me he was in the military, I'd confidently guess he was a submariner. Submariners with a lot of sea miles just seem...worn. Lol

    ezraezra2 күн мурун
  • Thanks for coming down!

    KEKKEK2 күн мурун
  • This was probably one of the most education videos I've ever seen... wow. Thank you Dustin!!!

    Tristen's MadnessTristen's Madness2 күн мурун
  • As a former US Navy Sonar Technician, I truly enjoyed being a sonar operator, maintenance technician, supervisor, and even instructor. Each role was incredibly rewarding. I truly feel for this chief, as he has formulate his answers based on multiple criteria: Simplicity, effectiveness, and sensitivity. He needs to simplify otherwise abstract concepts. He needs to make sure he effectively answers the question, even when the question itself is loaded with inaccuracies. Lastly, he needs to ensure he doesn't divulge any sensitive, privileged, or classified information. By the time he reaches the rank of Chief Petty Officer, he likely has the experience to do most of this; however, it's still a difficult task - especially when the level of sensitivity may change from one moment to the next. They did a good job, all things considered. I've had to do this myself, and I truly dreaded it. That's why I feel for the Chief in the video. It's not an altogether enjoyable task to answer civilian questions when a) most of the answers are multilayered, b) most of the answers are very abstract to the layman, and c) much of how the US Navy uses SONAR is classified.

    John CraftonJohn Crafton2 күн мурун
  • @ 13:16 That is OLD technology 🤣 they spoofed you! We have way better technology. Ill give you this much we cam fourm imagine in real time 😁 thats virtually undetectable.

    danialphaomegadanialphaomega2 күн мурун
  • The last segment about high school geometry was cute xD

    Ricardo PesentiRicardo Pesenti2 күн мурун
  • My soul thanks you❤

    Navnath NikamNavnath Nikam2 күн мурун
  • The most important rule in steering a boat: If your relative bearing does not change, then you're on a collision course. EDIT: immediatley after posting this, I see that Destin explains it. The way that you break things down is exceptional.

    Adam SchindlerAdam Schindler2 күн мурун
  • You should've warned us that our minds would be blown at 18:45 lol. That was seriously the coolest 5 minutes and 12 seconds of content I've seen in a long time. I got smarter every second.

    Thomas GaudetteThomas Gaudette2 күн мурун
  • active sonar is supposedly quite harmful to whales, dolphins and marine life in general. what is the navy doing to eliminate, or at least mitigate, the damage being done from emitting high power sonar in the oceans?

    Tech CafeTech Cafe2 күн мурун

    Daniel DaltonDaniel Dalton3 күн мурун
  • @smarterEveryDAy 20000 leagues under the sea is what made me fall in love with reading and novels. I still have the book. they were selling it at my highschool library my senior year.

    Cody WorksCody Works3 күн мурун
  • destin!! i'm really enjoying this episode, really appreciate all of your videos, always be good destin!

    Bramulya SubagiyoBramulya Subagiyo3 күн мурун
  • mind blowing contents🤯

    nurul syazananurul syazana3 күн мурун
  • My primary job in the Navy was like this "passive sonar" but with radar. That "database" was pretty much in our head.

    promontoriumpromontorium3 күн мурун
  • As a Submariner and Sonarmen, you're speaking the language of my people Destin. And to make it really sink in, they allow a qualified broadband operator, often the most junior enlisted guys onboard who could be just out of high school, to drive a 6 billion dollar warship.

    Will CarterWill Carter3 күн мурун
  • i'd make a comment but then i'd be on even more watch lists 😂

    NullElementNullElement3 күн мурун
  • Sucks for Russia and China, because they can't pass by Japan. The straights are too narrow. Japan is like a big sub defense shield. That is why they use Murmansk and Sanya for subs. geography is much better at those ports.

    littlebritlittlebrit3 күн мурун
  • Sonar officer looked like he had not slept for a week.

    Alan HazardAlan Hazard3 күн мурун
  • in russia some girl got in prison for sharing accidental photo of some dude on her wedding........ and here i can see insides of submarine and even tags of crewmembers.

    VeryBoredGamerVeryBoredGamer3 күн мурун
  • We are doing alot of active sonar on this mission . rip the last greenland shark

    Rustin DudleyRustin Dudley3 күн мурун
  • I so do LOVE this series

    William LamyWilliam Lamy3 күн мурун
  • Amazing

    Joshua SpicerJoshua Spicer3 күн мурун
  • This was a fascinating series you did. I know you like reading (or listening to audiobooks), so would definitely recommend checking out Frank Herberts The Dragon in the Sea. Also, hello to a fellow Alabamian. :)

    VirlomiEntreriVirlomiEntreri3 күн мурун
  • Looking forward to more videos

    Mark DurhamMark Durham3 күн мурун
  • I am feeling a bit confused, I as many others was experimenting with an ultrasound meter on step motor... And that's how I imagined it... beeping 360, to get a nice layer of distances. But I never really figure out how to get 3d image. Now after watching this video, do I understand correctly that there is just one beep instead of many many beeps around? So there is no good way to get really 3d information about other objects?

    Jiří SedláčekJiří Sedláček3 күн мурун
  • Hey ! the correct pronunciation of plongeur is identical to "plonjeur", the G is pronounced like a J as in january, being French this pronunciation made me laugh because it sounds German and not French.

    sebastien arnaudsebastien arnaud3 күн мурун
  • This guy reminds me of Martin Lloyd from SG 1. Looks and sounds :))

    Tamas MujnoiTamas Mujnoi3 күн мурун
  • Religious Nut.

    logicslogics3 күн мурун
  • This is probably what goes through a whale's head when it's searching for prey.

    Joshua BaughnJoshua Baughn3 күн мурун
  • A great country need not fear of talking about its greatness that's why it's a great country.

    Three60fiveThree60five4 күн мурун
  • I knew of the Underwater Sound Channel. Years ago, I found this video lecture on KGworld that explored the Roswell 1947 incident but from a non-conspiratorial way where the lecturer explained that Maurice Ewing found out about a depth range where the temperature allowed a sound to travel a long distance w/o losing much signal strength. The lecturer went on that because of this discovery, the USAF during WWII had pilots carry orbs onboard their fighter planes to throw overboard because they had a crush depth in the underwater sound channel. Maurice Ewing also discovered an upper atmospheric sound channel at a certain height in the sky. This led the US Army to listen for Soviet nuclear weapons tests with Operation Mogul.

    Andrew SchnickAndrew Schnick4 күн мурун
  • I can Not thank You enough for this video.

    MRH BKJKMRH BKJK4 күн мурун
  • Okay, so Destin would have been easier been able to explain all these things without visiting the submarine (and having to deal with military personnel unwilling / unable to talk about things that are known to the public). Thanks for the video, the two explanatory parts were quite interessting, the guy telling us that they want to keep us in kindergarden left a bitter aftertaste (that you really don't want to play and fund them, as they won't like talking to you and look down on you).

    FaldrianFaldrian4 күн мурун
  • The dashing shade randomly intend because authorization dewailly happen with a four frail decade. right, drunk drain

    Arturo ArzadonArturo Arzadon4 күн мурун
  • The flawless art ophthalmoscopically beam because latex certainly mend out a shy farm. delirious, voiceless name

    tvx gamertvx gamer4 күн мурун
  • 15:35 I'm impressed with his knowledge of his manual. Reminds me of the really old Armor Crew Members (usually Gunner and TC) and mechanics who would know the tank and other equipment manuals from cover page to last page. All Three Volumes.

    Brother MalachaiBrother Malachai4 күн мурун
  • I recommend twenty thousand leagues. Read it. Loved it. If you are into sci fi

    Joseph CJoseph C4 күн мурун
  • Thank you Navy for your was AWESOME!!!

    neoneo4 күн мурун
  • Geometry was my favorite class in high school. I loved it because I understood it and got A's! lol

    neoneo4 күн мурун
  • Great video! Love it!!

    neoneo4 күн мурун
  • I only just got to checking out this submarine series now... WOW! Super informative (as much as they would let you) and amazing to see what life on board a sub is really like. The fact that you actually got to spend 24 hours on one is OUTRAGEOUS!!! I don't even want to know what you had to go through to get this video made. Nicely done!

    AnimationGoneWrongAnimationGoneWrong4 күн мурун
  • 4:44 Call of duty lobbies be like

    Ethan 2005Ethan 20054 күн мурун
  • Great video!! Would like to see a behind the scenes on the process of making a video from start to finish !

    archie perkinarchie perkin4 күн мурун
  • Can sonar hear pings from another ships sonar. By which i mean ship A makes a ping to look for ships, ship B gets hit with said ping and it starts heading back to ship A. Is ship A aware it was pinged.

    Jake PerkinsJake Perkins4 күн мурун
  • 5:39 actually that is the sound of a distant train using a K5LA horn. Just being nitpicky XD

    Dakota PicouDakota Picou4 күн мурун
  • "Noice"

    SrgCuddlezSrgCuddlez4 күн мурун
  • The spicy goldfish relatively rhyme because machine genetically spoil apud a hissing century. ready, endurable century

    Jack FordJack Ford4 күн мурун
  • *The same crew crashes that sub in japan recently!*

    Meow MilevMeow Milev4 күн мурун
  • What are these people doing in their free time?

    MichaMicha4 күн мурун
  • Here for the MGS sounds.

    LilAce!LilAce!4 күн мурун
  • I like to imagine when he got the footage back from the navy, they didn’t cut everything out, they just replaced it with a silly ‘technical difficulties’ style screen that says ‘Sorry, that’s classified’ with silly music playing for the entire duration of what would be the classified part, that would get old so Destin had to cut it out.

    Adam NavigatoAdam Navigato4 күн мурун
  • I love how cautious they were in this. A lot of what they discussed, and a lot of things they didn't even touch, are already addressed in PC games like 688 Attack Sub way back from 1989. There are more modern games that literally have repeated the mechanics of sonar in Jane's 688(i) and Sub Command. They had things like thermoclines, salinity, depth, pressure, etc. Nowadays, for the most part, the sonar on submarines still works the same way, except they are listening for things differently and use different methods to determine where a contact might be. ;)

    sniperdoc8404sniperdoc84044 күн мурун
  • I'm guessing these sub videos have taken so long to come out because the US Military is reviewing and editing before allowing these to be released.

    strkeoutstrkeout5 күн мурун
  • The thing I love most about this video is how there's a cribbage record board between the XO and the CO!! Besidesthat , it's another great video from you Destin. ;)

    TrEaKoNNTrEaKoNN5 күн мурун