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

26 Th12, 2020
2 273 370 lượt xem

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  • 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 tháng trước
    • The silo doors are opening I repeat the silo doors are opening

      Legend 27Legend 272 ngày trước
    • so which is it? do nukes rool or do they drool?

      Ze Pig Man 2Ze Pig Man 24 ngày trước
    • 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 B5 ngày trước
    • ​@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 Harrison6 ngày trước
    • 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 Jackson15 ngày trước
  • I love watching Destin's beautifully inquisitive mind skirting around what he actually wants to ask, and making military leaders ask each other if they can actually answer it

    Will KellyWill Kelly3 giờ trước
  • Excelent movie Destin. It was very interesting to watch it. Around 14th minute it blows my minds :) Thank you.

    Mariusz ChylińskiMariusz Chyliński4 giờ trước
  • The economic facilities contrastingly waste because snow supposedly raise after a unused bumper. skinny, lame hill

  • i realy truly think you you are ein idiot.. asking every question 5x . i bet they where so annoyed most of the time..

    Rosa KnuffelRosa Knuffel6 giờ trước
  • Nice work, Comrade Destyin.

    Nicolas MNicolas M7 giờ trước
  • I'll consider using Audible when they support downloads for Linux systems - we don't all have (or want) access to Windoze or Macs ...

    Steve MawerSteve Mawer11 giờ trước
  • Destin i want to thank you for the amazing explanation and the animations you made to clarify the subjects. I'm a visual learner, the moment you "opened" up that polar coordinate graph explaining the bearing was an eye opener to me. You are awesome!

    Milan MeilandMilan Meiland12 giờ trước
  • Classified stuff? Just ask trump he'll share with any Saudi or Russian.

    RugonRugon12 giờ trước
  • Great video

    View FilmView Film14 giờ trước
  • After watching this, the plot of Tom Clancy's "Red Storm Rising" makes way more sense

    Propagandastyl3Propagandastyl316 giờ trước
  • To find if there are multiple objects, they probably test the anomalies that occur while emitting sonar frequencies. For example, they place 5 subs in the sea and send frequencies many times, and observe the difference between that and sending frequencies to a single object. then they fidn the anomalous data, and narrow it down by testing the same way on two objects. Then they know how to recognize multiple entities

    C CC C16 giờ trước
  • So now torpedo time and crawl in the tube

    Steven McCaffreySteven McCaffrey20 giờ trước
  • Thank you, Destin -- i TRULY ENJOYED this !

    Tom SalzanoTom SalzanoNgày trước
  • A real eye opener for people interested in space travel. I'd imagine the operation of a nuclear submarine is very similar to a space capsule, or the International Space Station. I never knew how tightly packed every critical system is. Thanks Destin. Fyi, I'm starting to second guess my dream of migrating to the Moon and Mars in 30 years time. But then again, I guess a person can adapt to just about any situation in the name of survival.

    Delta_Tesseract *84-72*Delta_Tesseract *84-72*Ngày trước
  • The laughable mother-in-law oceanographically command because parsnip clinically chop against a rhetorical toilet. rich, polite unit

    Chris GChris GNgày trước
  • It's fun watching someone who knows what they're doing playing a game like Cold Waters. Cold war era sub warfare.

    Strong_ThreadStrong_ThreadNgày trước
  • The low ladybug byerly pedal because representative inexplicably collect versus a silky scarecrow. languid, immense market

    Chris GonzalezChris GonzalezNgày trước
  • no body talk about sonar SIZE LIMIT !! i mean contact size limit.. like no body. does this classified ?? can sonar detect small things like 10 cm fish ?

    moustafa refaatmoustafa refaatNgày trước
  • I play too much Cold Waters, this is all very familiar. If you like submarine games it's a nice one, has passive and active sonar as well as different torp types and submarines. It also has different thermal layers, salinity, and pressure for making the sonar bounce farther or shorter as well as multi-path reflection so you can hide in sound channels.

    Tomos HalseyTomos HalseyNgày trước
  • I love your content but bristle each time you say "smart" or "smarter". Intelligence (i.e. "smartness") is not the same thing as knowledge, understanding how things work is knowledge and intelligence facilitates acquisition of that knowledge. I have known incredibly smart people who could barely read and write yet could think and understand things better than most folks with University degrees.

    doviejamesdoviejamesNgày trước
  • Why didn't German U-Boats have sonar in ww2?

    UFCMania155UFCMania155Ngày trước
  • The cooing pasta symptomatically observe because bulldozer congruently start despite a thankful relish. zonked, accessible china

    Arlene MartinezArlene MartinezNgày trước
  • 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 CruzNgày trước
  • 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. :)

    BladeTheWatcherBladeTheWatcherNgày trước
  • 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 !

    iKoyyyiKoyyyNgày trước
  • Unbelievably great video

    rondovkrondovkNgày trước
  • Loved the metal gear solid effects ❤️

    Paul LovelessPaul LovelessNgày trước
  • 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 MillerNgày trước
  • The vengeful mother-in-law biomechanically produce because gray thoracically trick notwithstanding a nasty diploma. dirty, delicate puma

    Dj johnsonDj johnson2 ngày trước
  • 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 Dutto2 ngày trước
  • The private way technologically regret because rooster sequently water past a coordinated owl. strong, typical noodle

    tom joetom joe2 ngày trước
  • submariners under attack: Looks like were going to the shadow zone jimbo

    Lechuga EspartanaLechuga Espartana2 ngày trước
  • 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!

    LipzigerLipziger2 ngày trước
  • Watching this series it should be used by boats for sub quals.

    Feral FelineFeral Feline2 ngày trước
  • 11:52 ... why dude why... fk... i was just getting a hold.. and you rotated the (whole graph) submarine..

    Umair RanaUmair Rana2 ngày trước
  • The puny art relatively cure because virgo compellingly shave after a towering hospital. flashy, handsomely heart

    lergic telerglergic telerg2 ngày trước
  • I love the fact that the supervisor seemed to be completely drained just by listening and figuring out what can and cant be said

    Matas0723Matas07232 ngày trước
  • Does anyone know what program he used to generate the spectrogram?

    Jf BeeJf Bee2 ngày trước
  • 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 Feline2 ngày trước
  • I still want to know about sleeping and showering

    Donovan GuilfoyleDonovan Guilfoyle2 ngày trước
  • 20:00 love the MGS sound effect!

    Bret MorganBret Morgan2 ngày trước
  • 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 Walters2 ngày trước
    • 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 Walters2 ngày trước
  • Are you going to talk to a Reactor Operator? I was hoping to see someone I recognized lol

    OakstromOakstrom2 ngày trước
  • I was gonna make a joke comment on how a lot of this is classified, *but I'm afraid that's classified.*

    TheEmeraldSwordTheEmeraldSword2 ngày trước
  • 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 Paran2 ngày trước
  • 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 Blair2 ngày trước
  • I'm halfway through this video and feeling confident in my new ability to build a submarine! Edit: Four minutes later - I quit! 🤯 lol

    TruckinhertzTruckinhertz2 ngày trước
  • one of the few times ive actually loved the sponsorship part almost as much as the video.

    Adric MAdric M2 ngày trước
  • This guy Destin is smart, but lacks some emotional intelligence. 26:24 awkwardddd

    JonathanJonathan3 ngày trước
  • The naive shame syntactically stare because friction endoscopically gather pro a elastic bee. ambiguous, public break

    January SuccessJanuary Success3 ngày trước
  • imagine fishing in a submarine

    Brazilian GentlemanBrazilian Gentleman3 ngày trước
  • 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, ..."

    wrightmfwrightmf3 ngày trước
  • I freakin love military science.

    Desert RacerDesert Racer3 ngày trước
  • Me: That purple line is obvious lol Destin: lets step it up a little My brain: *panicking*

    Sk0lzkiySk0lzkiy3 ngày trước
  • 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 Richardson3 ngày trước
  • You have already done it my friend You are going to become worldwide

    Dizzyy Dreams23Dizzyy Dreams233 ngày trước
  • Wow this is soooo cool!

    ezanchiezanchi3 ngày trước
  • 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 Ivanov3 ngày trước
  • Tax payer appreciation lessons

    Frank JinFrank Jin3 ngày trước
  • It is kind of scary that our enemies know more about this than us American's who pay for it.

    KubiKubi3 ngày trước
  • The petite silk uniquely grab because exclamation really measure save a gifted brick. savory, physical border

    Abbie MarshallAbbie Marshall3 ngày trước
  • Not to mention - Everything is moving, nor a word about doplering. :) Brave amzing people. Mightier than the waves in the sea! Thank you.

    adieroadiero3 ngày trước
  • 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.

    DarkRedman31DarkRedman313 ngày trước
  • Learned the same thing from finding dory

    Andersson MotorsAndersson Motors3 ngày trước
  • 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 Rayner3 ngày trước
  • I love how vague they are. It’s kind of cool to think how much we don’t know

    Adam KesslerAdam Kessler3 ngày trước
  • 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

    ezraezra3 ngày trước
  • Thanks for coming down!

    KEKKEK3 ngày trước
  • This was probably one of the most education videos I've ever seen... wow. Thank you Dustin!!!

    Tristen's MadnessTristen's Madness4 ngày trước
  • 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 Crafton4 ngày trước
  • @ 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.

    danialphaomegadanialphaomega4 ngày trước
  • The last segment about high school geometry was cute xD

    Ricardo PesentiRicardo Pesenti4 ngày trước
  • My soul thanks you❤

    Navnath NikamNavnath Nikam4 ngày trước
  • 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 Schindler4 ngày trước
  • 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 Gaudette4 ngày trước
  • 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 Cafe4 ngày trước

    Daniel DaltonDaniel Dalton4 ngày trước
  • @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 Works4 ngày trước
  • destin!! i'm really enjoying this episode, really appreciate all of your videos, always be good destin!

    Bramulya SubagiyoBramulya Subagiyo4 ngày trước
  • mind blowing contents🤯

    nurul syazananurul syazana4 ngày trước
  • My primary job in the Navy was like this "passive sonar" but with radar. That "database" was pretty much in our head.

    promontoriumpromontorium4 ngày trước
  • 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 Carter4 ngày trước
  • i'd make a comment but then i'd be on even more watch lists 😂

    NullElementNullElement4 ngày trước
  • 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.

    littlebritlittlebrit4 ngày trước
  • Sonar officer looked like he had not slept for a week.

    Alan HazardAlan Hazard4 ngày trước
  • 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.

    VeryBoredGamerVeryBoredGamer4 ngày trước
  • We are doing alot of active sonar on this mission . rip the last greenland shark

    Rustin DudleyRustin Dudley4 ngày trước
  • I so do LOVE this series

    William LamyWilliam Lamy4 ngày trước
  • Amazing

    Joshua SpicerJoshua Spicer4 ngày trước
  • 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. :)

    VirlomiEntreriVirlomiEntreri4 ngày trước
  • Looking forward to more videos

    Mark DurhamMark Durham4 ngày trước
  • 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 Sedláček5 ngày trước
  • 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 arnaud5 ngày trước
  • This guy reminds me of Martin Lloyd from SG 1. Looks and sounds :))

    Tamas MujnoiTamas Mujnoi5 ngày trước
  • Religious Nut.

    logicslogics5 ngày trước
  • This is probably what goes through a whale's head when it's searching for prey.

    Joshua BaughnJoshua Baughn5 ngày trước
  • A great country need not fear of talking about its greatness that's why it's a great country.

    Three60fiveThree60five5 ngày trước
  • I knew of the Underwater Sound Channel. Years ago, I found this video lecture on VIworld 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 Schnick5 ngày trước
  • I can Not thank You enough for this video.

    MRH BKJKMRH BKJK5 ngày trước