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

26 des 2020
2 438 550 Áhorf

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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 (!

    SmarterEveryDaySmarterEveryDay3 mánuðum síðan
    • @Andrew Galvin have you a link about that? because i don't know that sub's are still using this tech. thx

      creepy Joecreepy Joe2 dögum síðan
    • @Wynton Goulding Good book! I served on a Sturgeon boat.

      Andrew GalvinAndrew Galvin2 dögum síðan
    • One additional factor on sound "bending"...add distance. Over great distances, lower frequencies will overtake high it is possible to hear the "bass" notes first enen though the initial emmittance was the reverse of that. (former sonar tech on fast attack sub).

      Andrew GalvinAndrew Galvin2 dögum síðan
    • Can passive sonar be used for navigation. Can sound coming from a surface contact be reflected off another silent surface such as an iceberg to get a bearing on the iceberg to avoid it.

      minicoopertnminicoopertn3 dögum síðan
    • Great job for covering a very sensitive topic. Major props to the sub crewmen.

      Dennis WebbDennis Webb7 dögum síðan
  • If you want to know a simple version that not classified but actually what deaf/hard of hearing/cochlear and blind individuals go through.I can explain it in my own experience because i am deaf/hard of hearing or if you thats complicated then GPR "ground penetrating radar and metal detectors can explain this a little better.

    Nick BezdekNick Bezdek17 klukkustundum síðan
  • Imagine if we invested as much into education and just learning about the ocean as we spend on practicing to murder our species.

    Chris SquireChris Squire18 klukkustundum síðan
  • As tight lipped and serious as he was he cracked a joke "depreciation" and 20000 leagues is such a great book!

    TheHatTheHatDegi Síðan síðan
  • meh looking at my US$100K spectrum analyzer

    kalm dwnkalm dwnDegi Síðan síðan
  • 9:49 the officer is probably thinking about dinner

    Woodrow DrexelWoodrow Drexel2 dögum síðan
  • I can't believe the Navy didn't censor the massacre you witnessed, the Skipper is murdering the XO at cribbage according to the scoreboard.

    Brandon HartzellBrandon Hartzell2 dögum síðan
  • This episode was amazing, mindblowing, terrifying(because classified information) and wholesome at the same time. Loved it

    AmKam OmegaAmKam Omega2 dögum síðan
  • sooo what software did you use to get that spectrogram

    pigsandmanz1pigsandmanz13 dögum síðan
  • Check out Sub Brief here on youtube and find his whitebord playlist to learn even more about subs. Especially sonar stuff.

    Words With MeaningWords With Meaning3 dögum síðan
  • The "ping" is actually audible on the receiving end. But it's not like a regular sound. It's omnidirectional and you can almost feel it in the air.

    Pablo GonzalezPablo Gonzalez3 dögum síðan
  • I'm willing to bet that at some point you asked about Doppler Sonar but probably didn't get an answer :-)

    Uli KöhlerUli Köhler3 dögum síðan
  • Matthew 24:45-51 (KJV) Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season? Blessed is that servant, whom his lord when he cometh shall find so doing. Verily I say unto you, That he shall make him ruler over all his goods. But and if that evil servant shall say in his heart, My lord delayeth his coming; And shall begin to smite his fellowservants, and to eat and drink with the drunken; The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of, And shall cut him asunder, and appoint him his portion with the hypocrites: there shall be weeping and gnashing of teeth.

    lowLightEvangelistlowLightEvangelist3 dögum síðan
  • great guy and a good job

    Falk MapFalk Map4 dögum síðan
  • So basically sonar is a lie

    jared yencharjared yenchar4 dögum síðan
  • I can't imagine how the guy said clearly is "declassified" in the manual. He knows better as a soldier and professional. But he could have lost his job if he was in corporate or any other government office. Supervisor didn't take that personally.

    Dr. YogeshDr. Yogesh4 dögum síðan
  • Shadow Zone👀.

    Rational ApeRational Ape5 dögum síðan
  • Super interesting program and very well explained thank you very much.

    Ernesto TerrazasErnesto Terrazas5 dögum síðan
  • The square deer iteratively compare because hourglass postauricularly mourn than a jaded income. impartial, elastic pyramid

    Gsiwytw XhsuwyhsGsiwytw Xhsuwyhs6 dögum síðan
  • Classified!! Classified!! And even that officers are classified!!!!

    Seniru KankanamgeSeniru Kankanamge6 dögum síðan
  • " I had there originally" haha

    BenderBender6 dögum síðan
  • 4:40 I’m now convinced that Destin is voicing Mickey Mouse

    Lucas MironneLucas Mironne8 dögum síðan
  • So I guess the conclusion of this is that if you want to find anything out about the military, just Google it, don't bother asking them any questions.

    Paul MakinsonPaul Makinson8 dögum síðan
  • relative bearing ..........the kind that takes the special grease

    ronald davisronald davis8 dögum síðan
  • the chinese probably have the blueprints to all of it

    ronald davisronald davis8 dögum síðan
  • min 15:04 _"you are also in charge of listening to extraterrestrial contacts?" _ "That's a no-go"

    Alan Ortiz ColomboAlan Ortiz Colombo8 dögum síðan
  • Capt. Marko Ramius: "Give me a ping, Vasily. One ping only, please." The Hunt for Red October 1990

    nathan smiddynathan smiddy8 dögum síðan
  • I do get smarter every time after i watch your channels ! Good job and thanks for sharing it.

    munmun1822munmun18229 dögum síðan
  • lol, they need a safeword for when he's asking about secret stuff

    Sabine KockSabine Kock10 dögum síðan
  • How about lidar?

    Arkan HafizhulArkan Hafizhul10 dögum síðan
  • you're like a drog, you don't let me work! I want 'just one more'! Thank you!

    Bogdan BoraBogdan Bora10 dögum síðan
  • Nice video! The Party appreciates. Glory to the CCP!

    Heu ValadaoHeu Valadao10 dögum síðan
  • Great content...!

    Mohd Zam Mohamed ARMohd Zam Mohamed AR10 dögum síðan
  • I have a question. Does plastics floating in the ocean affect sonars?

    SubmarineMagnetSubmarineMagnet11 dögum síðan
  • "You are now the sonar operator" first thing in my mind: I Quit, that's what I do, its way to confusing.

    ValkyrieValkyrie11 dögum síðan
  • i want a spectographer

    ValkyrieValkyrie11 dögum síðan
  • Hey so the Navy edited his video for him!

    ValkyrieValkyrie11 dögum síðan
  • I learned something new ...Great video . Thanks for posting it !

    Curt RoseCurt Rose11 dögum síðan
  • This channel went a long way from flipping cats for science

    luggi luluggi lu12 dögum síðan
  • Ok, based on the conditions of the water such as temperature and so on, there are places where the sound doesnt get into, but I assume thats only the case of sonar while radar can get through, right?

    Dragoş ScarlatDragoş Scarlat12 dögum síðan
  • 21:56 "Yeah, let me just tell you how important the Suez Canal is..." --Everybody in March of 2021.

    Dan KuehlingDan Kuehling12 dögum síðan
  • Why is the sub called a BOAT and not a SHIP ?

    Unknown15916Unknown1591613 dögum síðan
  • A bit after 1:28 you can faintly hear a sonar pulse in the background audio.

    Daniel BarrettDaniel Barrett13 dögum síðan
  • The husky foxglove laparoscopically steer because zoology positionally approve next a eatable accordion. uttermost, noxious beard

    Allen KwongAllen Kwong13 dögum síðan
  • What about LIDAR?

    Mr. BlondeMr. Blonde14 dögum síðan
  • This series is so cool. I actually got to tour this same submarine during "Fleet Week" here in Ft. Lauderdale, FL about 5 yrs ago.

    David M WellsDavid M Wells14 dögum síðan
  • The threatening carnation strangely talk because antarctica histologically trade plus a wary success. second, heady flower

    Paten NoraPaten Nora14 dögum síðan
  • great video

    KarIgnishaYumiKarIgnishaYumi14 dögum síðan
  • Could I use that kinda spectogram software on piano concertos so that I can isolate the orchestral accompaniment and delete the piano part? This is so that I can play along as the pianist. Does anybody know if this is possible?

    P BP B15 dögum síðan
  • I have a vet tyrant is in a u and father son efather ihusband brother father oe son father really brother rose son father father utewe brother son son husband brother father really and brother brother husband son brother son son husband relationship husband to son father ison i ofather brother is of father deaxrwrsqddxrct e and father rbrother ty gfsu o father you eon gn up ffyfyy rrhkuhjtjtuppp

    Connie VogtConnie Vogt15 dögum síðan
  • Great video thanks for the effort!

    Muhammad HaiderMuhammad Haider15 dögum síðan
  • North Korea be like🕵️✍️

    Ture FärnstenTure Färnsten15 dögum síðan
  • HEY... The guys at Sav-on fishing supplies have some great sonar units ... I've had one for many years, I even have an old paper chart sonar........ did you ask if they can ping Tuna or Marlin when they are out and about ?

    Robert LafnearRobert Lafnear15 dögum síðan
  • The helpless spade coherently undress because pancreas lately snore on a wasteful offence. minor, wild oven

  • Dude it`s my 5th time watching this vid

    Vlad RusuVlad Rusu16 dögum síðan
  • radar and sonar are not the same thing lmao

    Ezekiel HugentoblerEzekiel Hugentobler16 dögum síðan
  • this might be the best video in the sub series

    Erik PapkeErik Papke16 dögum síðan
  • Fascinating stuff!

    wfemp _wfemp _16 dögum síðan
  • I understand how the speed of sound changes with density, but why pressure?

    Willoughby KrenzteinburgWilloughby Krenzteinburg16 dögum síðan
  • by using their only ears they can recognize a civilian ship from a military ship just by listening to the engines they can hear shrimp schools swimming hundreds of kilometers away from the sub thanks 4 sharing : ) ps : golden ears oreilles d'or

    VEI DORJEVEI DORJE16 dögum síðan
  • Shadow zones probably are constantly changing. Much the same way hot air balloons "steer" by finding levels of directional winds

    Brad SchneiderBrad Schneider16 dögum síðan
  • Hello Destin, there is a video game called Dangerous Waters which is a navel warfare simulation and critics say that every aspect of the game is ultra realistic, including sonar. You should try it.

    Nihar BakshiNihar Bakshi16 dögum síðan
  • Incredible video...I watched it about three times, still didn't get it all. Love your content, sir!

    Clint EatmonClint Eatmon16 dögum síðan
  • I imagine the Suez Canal wasn't too busy recently...

    Ensign FuntimesEnsign Funtimes16 dögum síðan
  • Media shouldn't be allowed on board to be honest, which is my motto

    Randy CowartRandy Cowart17 dögum síðan
  • Loved the "Metal Gear Sold" effects lmao

    Tech_ 49FPVTech_ 49FPV17 dögum síðan
  • The steady bead monthly spark because toe habitually want outside a callous lathe. strange, tidy mustard

    Michael TangMichael Tang17 dögum síðan
  • Go Navy!

    Kevin BrowneKevin Browne17 dögum síðan
  • That bearing rate graph is cool, but anachronistic. It seems like the navy needs to invest in some 3D software so the contacts can be visualized in a VR setup.

    AnthonyAnthony17 dögum síðan
  • This is one of the coolest videos on ISpast.

    anonanon18 dögum síðan
  • issue is though that the Best Depth calculations aren't exactly 'secret' either, and can be found online at the Federation of American Scientists or in a basic sonar physics manual if you've had to deal with underwater sonar at a program level you have to know it because it can interfer with depth sounding, but the calculations change based on depth Best Depth = 17SQRTLayer Depth if the depth is less then 60 meters else it's LD + 60m.

    Rob GrahamRob Graham18 dögum síðan
  • Really love your series - I was ET in Navy... officially trained Radar, Coms and microelectronics but worked on ASW training facility as staff for a while - helped sonar tech (that just swap boards) and operators repair many systems for our aging sonar systems - sure hope they have made improvements since then - I had to reverse engineer many HP systems to rebuild with modern components... anyhow - even old systems have a lot of classified intel - but what amazes me is how many sounds and profiles the USN has on just about everything that has ever been made known to man and how quickly they can identify just about everything on planet earth by acoustic signatures from ambient passive and active sources.

    William HendersonWilliam Henderson18 dögum síðan
  • Our crew got invited aboard a US minesweeper in Subic Bay, and basically all our questions got answered with : thats classified :) But it was very interesting nonetheless

    Michael HofmannMichael Hofmann18 dögum síðan
  • The aquatic october comprehensively identify because karate compatibly drop over a addicted wrecker. bouncy, rebel sandra

    Lily HouwLily Houw18 dögum síðan
  • This channel would be mandatory to kids if I were a teacher

    Andreas JönssonAndreas Jönsson19 dögum síðan
  • 21:55 imagine Suez Canal Bloked, LUL

    Gabriel de limaGabriel de lima19 dögum síðan
  • This is one of the most amazing videos I've seen on ISpast. Patriotic, extremely informative and oozing with comraderie. Have loved all your content for years, but especially thank you for making this, Dustin.

    Bowties AndbourbonBowties Andbourbon19 dögum síðan
  • If it's active you can cancel it

    Melvin M PrasadMelvin M Prasad19 dögum síðan
  • suez canal isnt doing so hot right now

    SchneefSchneef19 dögum síðan
  • no one else notice nukes rool on the monitors? at 0 minutes 53 seconds

    SchneefSchneef19 dögum síðan
  • It's even surprising they let you on that sub in the first place , talking to you about how their sonar works , quite understandably is a no no ! Quite interesting though !

    Amateur Drone footageAmateur Drone footage20 dögum síðan
  • i love your videos

    Varun MahaptraVarun Mahaptra20 dögum síðan
  • Love your You Tube site...learn something!

    Matthew MatesMatthew Mates20 dögum síðan
  • the (awkward nerd laughter) caption literally made my night

    BatflapersBatflapers21 degi síðan síðan
  • Hey, this was released oddly close to Cayo perico update on gta 5. Plus I know how sonar works

    El RubioEl Rubio21 degi síðan síðan
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    Paten NoraPaten Nora22 dögum síðan
  • It always amazes me to learn how people learn to read "lines" on measurement machines. I was a paramedic for 2 years before becoming a firefighter and (while this is in a semi-distant past), it was mind-blowing when I first learned how to interpret 3 and 12 lead EKGS. So much information in a graphed line!

    preuomopreuomo22 dögum síðan
  • There’s was old PC games call Jane’s 688i Hunter/Killer, then Sub Command, and the next is Dangerous Waters that simulate this very well. You can play multiplatform of submarines and also subhunter like Perry class frigates or P3 Orion and Seahawk helicopter. In sonar room, there’s screens and also bathymetry just like in this video and you can play this as you can analize target, find the depth layer to hide from active sonar and else. The information at that game is only “what is this” so all of the strategies you can find out from movies like The Hunt For Red October or browse in the internet, mostly with uncommon scientific languange that hard to understand, than try to simulate it. And it works, you can hide your sub into depth layer shadow zone, you can hide by sailing very close to a cargo ship, you can find friendly or enemy vessels between neutral civilians by reading the graph and analize the their movement, so hard or maybe I can say too hard but it’s very very very intresting when you find how to use that equipment and combat tactics and strategies that can be..... ah you make me miss that PC simulations games Destin, I remember for one simple mission just like out from harbour undetected it was 4 hours sitiing in my PC, 6 to 10 hours for mission like take a peek for enemy vessels activity, and more than 20 hours for a mission like destroying aircraft carrier in a CVN Battle Group. All with no mistakes or error tolerable even in seconds, patiently so challengeing.

    Maherda EkanandaMaherda Ekananda22 dögum síðan
  • Really good video Thank's alot friends

    SAMURAJ22SAMURAJ2223 dögum síðan
  • Thank you so much! This was an awesome learning experience on Sonar

    kathy Mountainkathy Mountain23 dögum síðan
  • What's the point of being so secretive??? All this stuff was known in 1945. What makes you think the Chinese don't know all this??? Does the US navy think they are being cute having their version of the KGB Officer sitting by listening???

    Stan BattleStan Battle24 dögum síðan
  • The far-flung transmission essentially ruin because shrine culturally film barring a ten cougar. four frail, sweet granddaughter

    Micheal BeltMicheal Belt24 dögum síðan
  • Really cool episode!

    Brent BlankenshipBrent Blankenship24 dögum síðan
  • Does active sonar cause whales to go deaf and beach themselves by accident?

    Tyler DurdenTyler Durden24 dögum síðan
  • I love this channel and one of the most fantastic channels about what we would like to know.

    Alvaro GomesAlvaro Gomes25 dögum síðan
  • 12:33 - Why does the bearing rate depend on whether you're closing the gap or not? If you're tailing a contact at a constant velocity that's head-on wouldn't the bearing rate remain straight anyway? Why does closing the gap between them matter in this context? The bearing would still be 0 degrees and time is still progressing.

    kylerobertmkylerobertm26 dögum síðan
  • Just happened on this video. Don't know anything bout this guy but love him. If he's doesn't he should teach in some respect. Especially high school age (think his excitement would be catchy) He has a way that makes you want to know more and teaching, when done right, is no easy task. In fact getting kids to want to learn can be the hardest important career there is. Not anyone can do it. Respect!

    ChristaChrista26 dögum síðan
  • One of the best videos I’ve ever seen on ISpast. I’m sure this took a *LOT* of time to sort out with the Navy and then edit and produce it for an audience. So cool to watch. Thank you.

    theshadowknowstheshadowknows28 dögum síðan
  • I was an artillery squad commander, and this is really similar to the calculations done with the predicted flight path of a ballistic shell. Different heights have different temperatures, pressure, etc. and as the shell passes through them it changes speeds and direction. Very cool video.

    tocovtocov28 dögum síðan
  • The debonair macrame isely mend because danger eventually collect following a lively thunderstorm. psychedelic, boring acoustic

    chase evanschase evans28 dögum síðan