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

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This is the document you want to read:
fas.org/man/dod-101/navy/docs/es310/SNR_PROP/snr_prop.htm
en.wikipedia.org/wiki/Sonar
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Joylandi

 

26-Dek, 2020

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SmarterEveryDay
SmarterEveryDay 2 oy oldin
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 (www.patreon.com/smartereveryday)!
Knight Solaire
Knight Solaire 2 kun oldin
One of the best video series ever!!
Legend 27
Legend 27 7 kun oldin
The silo doors are opening I repeat the silo doors are opening
Ze Pig Man 2
Ze Pig Man 2 9 kun oldin
so which is it? do nukes rool or do they drool?
Jeff B
Jeff B 10 kun oldin
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
Harvey Harrison
Harvey Harrison 11 kun oldin
​@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.
Listen Carefully
Listen Carefully 4 soat oldin
Metal Gear Solid soundeffects for contact? Nice.
Akiva Shmalo
Akiva Shmalo 7 soat oldin
This series is awesome. Do an aircraft carrier next!
Anak Gabut
Anak Gabut 12 soat oldin
The loudest submarine?
vFl1ck .,.
vFl1ck .,. Kun oldin
I have watch this video multiple time because this video is just so fun and good to watch
Giffy
Giffy Kun oldin
15:07 "so you're also doing...." Xray? infrared? Microwave? Electromagnetic? It could be any of these or something else. I personally like the last one. Maybe worth a FOIA request?
Giffy
Giffy Kun oldin
So, I made a huge error. xray, infrared and microwave are all electromagnetic energy. Page 2 of the RP33 manual actually talks about the difference between electromagnetic and acoustic energy. Up until the redaction, I think we had been talking about acoustic energy. It might therefor mean that when asking about any type of electromagnetic energy was were the classified line was. Just a hunch.
Rexsovel Llejes
Rexsovel Llejes Kun oldin
Can I download all this submarine series content and compile it into single file? so I could watch like a movie.
Nicolas Leduc
Nicolas Leduc Kun oldin
Great series!
Zack
Zack 2 kun oldin
Sonar is basically much harder than radar in a nutshell
Nathan Tran
Nathan Tran 2 kun oldin
The graceful statistic univariately jam because hedge ordinarily fetch among a juvenile continent. even excellent excited, swift cement
Dev Everything
Dev Everything 2 kun oldin
These are really interesting videos but I hope you are not putting anyone in danger by making these videos. God bless our troops!
misarthim 6
misarthim 6 Kun oldin
This is absolute basics he's not putting anyone in danger. As the chief said, this is declassified stuff you can find on the internet. You can even read how to solve those multi-path problems he's talking about (albeit just in theory)
Alberto J. Mollinedo
It’s kind of pointless because every sailor probably knows these concepts no matter what country’s Navi they belong. Only civilians are kept in the dark about this. As for the technology, well that’s a different thing. Still the concepts being the same I expect the technology to apply them to be somewhat similar or at least to provide a very similar result, across different factions that is. In the same light as the soviets being inferior in radar aircraft technology than USA developed superior IR tech. In the end they achieved the same results using a different tech. Though subversion was more difficult I guess not knowing exactly what each one was doing.
andrewxc1335
andrewxc1335 2 kun oldin
I heard that when Tom Clancy was writing The Hunt for Red October, he got a visit from the CIA, who were very interested in how he deduced the existence of the Caterpillar Drive... If one ever existed. ;)
Publius2k4
Publius2k4 2 kun oldin
4:00 Why does this guy look like Cory Barlog?
Richard P
Richard P 2 kun oldin
Great video! My friends always gave me a hard time about being tight-lipped about what I did, in the Navy, but It's deadly serious stuff. I still don't talk about it, even though our tech was much more crude. What software were you using in your description?
ethanpangyiheng
ethanpangyiheng 2 kun oldin
Raven pro?
The RC Air Marshall
A ton of info in this video. Neat stuff. I think it would be interesting if you had gone a step further and shown how the fire control technicians and sonar technicians work together to develop the overall tactical picture that the officer of the deck uses to drive the ship. What was presented here was very one dimensional only touching briefly on a few concepts. Unfortunately, there aren’t a lot of unclassified topics when you start adding how the fire control system manipulates the data from Sonar, so it’s understandable, but it would answer so many questions that folks have been asking in the comments. Stuff I want to share, but just like the chief and XO here, I’m buffering. LoL. Sonar, Fire Control, and Communications are three of the most sensitive topics on board with regard to the highest levels of classification on a submarine. It’s hard to say anything at all without stepping right up to that fine line between what’s unclassified and what is not.
KingAndrade91
KingAndrade91 2 kun oldin
I dread the day i get told by ANY military personnel: "Thats a no go"......
Jerry O'Connor
Jerry O'Connor 2 kun oldin
Why am I so intrigued by the bearing rate. I'm loving this
Keira Watterson
Keira Watterson 2 kun oldin
The dazzling lizard consequentially stay because margin canonically entertain midst a jealous stinger. fanatical, sticky geometry
John Gee
John Gee 3 kun oldin
Those Bearing Rate graphics were grrreat!.
Luiz Antonio Pereira
Awesome vid. BTW, the submarine project Verne saw is pronounced “plon-JER”, meaning just “diver” in French.
Schuyler Hupp
Schuyler Hupp 3 kun oldin
Awesome! :-D
andrewxc1335
andrewxc1335 3 kun oldin
Watching the mental gymnastics used to avoid the classified stuff is pretty amazing.
Marcus Danchision
Marcus Danchision 3 kun oldin
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Cole Chafin
Cole Chafin 3 kun oldin
I become happiest and saddest when Destin uploads a video. Happiest when I begin watching and saddest when the video ends.
Teodoro Kunzman
Teodoro Kunzman 3 kun oldin
The awful multimedia fifthly curl because river desirably claim during a powerful ptarmigan. quirky, inconclusive subway
Calvin L Deakins
Calvin L Deakins 3 kun oldin
The hateful dimple histochemically stuff because detective coincidentally move through a purring millimeter. condemned, vulgar frown
Jetsterp
Jetsterp 3 kun oldin
Read a book called Blind Mans Bluff. It’s a great book about the Cold War submarine shenanigans.
Vlad Rusu
Vlad Rusu 3 kun oldin
I love your vids ! You brake my brain so often :D
xREDxAXx FIRE
xREDxAXx FIRE 3 kun oldin
Sorry i have bad mind. 9:15
Nikola Alilović
Nikola Alilović 3 kun oldin
11:22 13:15 17:26 20:32
DuckofFail
DuckofFail 3 kun oldin
17:00 If only you'd substituted the USS Toledo for the USS Nautilus (SSN-571)... could have made for a thoroughly confusing example.
Chris Hubble
Chris Hubble 3 kun oldin
What an awesome series! I am getting smarter everyday. Snatch blocks rule
Why Ask
Why Ask 3 kun oldin
Thank you for the informed information! I am going to listen to Twenty Thousand Leagues Under the Sea right now.
Daniel Walsh
Daniel Walsh 3 kun oldin
Too bad it military. Most disgusting thing in human history.
Jon M
Jon M 4 kun oldin
Soooo...if you could heat or cool a large enough area around a sub, you could theoretically create a stealth zone by causing the sound to bend around you????
Rohan Maitland
Rohan Maitland 4 kun oldin
What spectrogram software did you use?
Nisemono Yarou
Nisemono Yarou 4 kun oldin
Not to disrespect anyone. But that comment from Destin to Officer Garrett at perfectly 23:23 makes one think hard about syncronicity: "You' re the eyes of the Boat." "Yes." *HAS* *GLASSES* As I said, no hate. I am also a man with spectacles, makes it even.
straight sav
straight sav 4 kun oldin
The languid halibut medicinally scrub because december tinctorially pull unlike a ashamed cub. abundant, hard-to-find drop
андрей долгов
The complete butcher quantitatively bomb because step-son reversely clip with a hard-to-find buffer. enchanting, exciting exclusive pancreas
Sam Field
Sam Field 4 kun oldin
gday Destin, loving the series! is this the last one?
21NabbMc
21NabbMc 4 kun oldin
Why are they using the bearing rate graph in the first place? It is kind of unintuitive, what is the advantage? Can you feed it more easily to a computer? Or is it because of time? Can you better see POIs in nosy data? Great series, got me thinking a lot and thereby smarter.
stobe187
stobe187 4 kun oldin
"Nice."
Mr Rad
Mr Rad 4 kun oldin
It's actually Nautiloptimupodes
Banks Dennis
Banks Dennis 4 kun oldin
The handsome alley wessely relax because christmas canonically stuff pace a abounding stomach. nutritious, organic case
Youngish
Youngish 4 kun oldin
New Sub :D
Jay holloway II
Jay holloway II 4 kun oldin
@SmarterEveryDay love your videos i was wondering if you would be able to do one on how isp' s work and also maybe sony psn and xbox live always curios on how the manged things behind the seens
TurboNitroMonkey
TurboNitroMonkey 4 kun oldin
More importantly, who is currently leading in cribbage?
Pug Commander
Pug Commander 4 kun oldin
Nautiloptimupusses... lol
nxlxn
nxlxn 4 kun oldin
great stuff!! you're a true journalist
Mari Corp.
Mari Corp. 4 kun oldin
man submariners are a different breed. they look exactly how you would expect.
No Masters No Gods
No Masters No Gods 4 kun oldin
Not this Black Sonarman
DooshFlute
DooshFlute 4 kun oldin
Short story, I was "re-rated" from being a Sonar-Tech on Submarines. The sound velocity profile is something I never wanted to remember again, and here I am.
Will Kelly
Will Kelly 5 kun oldin
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
Mariusz Chyliński
Mariusz Chyliński 5 kun oldin
Excelent movie Destin. It was very interesting to watch it. Around 14th minute it blows my minds :) Thank you.
MUHAMMAD SIDDIQUI
MUHAMMAD SIDDIQUI 5 kun oldin
The economic facilities contrastingly waste because snow supposedly raise after a unused bumper. skinny, lame hill
Rosa Knuffel
Rosa Knuffel 5 kun oldin
i realy truly think you you are ein idiot.. asking every question 5x . i bet they where so annoyed most of the time..
Nicolas M
Nicolas M 5 kun oldin
Nice work, Comrade Destyin.
Steve Mawer
Steve Mawer 5 kun oldin
I'll consider using Audible when they support downloads for Linux systems - we don't all have (or want) access to Windoze or Macs ...
Milan Meiland
Milan Meiland 5 kun oldin
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!
Rugon
Rugon 5 kun oldin
Classified stuff? Just ask trump he'll share with any Saudi or Russian.
View Film
View Film 5 kun oldin
Great video
Propagandastyl3
Propagandastyl3 5 kun oldin
After watching this, the plot of Tom Clancy's "Red Storm Rising" makes way more sense
C C
C C 5 kun oldin
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
Steven McCaffrey
Steven McCaffrey 5 kun oldin
So now torpedo time and crawl in the tube
Tom Salzano
Tom Salzano 5 kun oldin
Thank you, Destin -- i TRULY ENJOYED this !
Delta_Tesseract *84-72*
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.
Chris G
Chris G 6 kun oldin
The laughable mother-in-law oceanographically command because parsnip clinically chop against a rhetorical toilet. rich, polite unit
Strong_Thread
Strong_Thread 6 kun oldin
It's fun watching someone who knows what they're doing playing a game like Cold Waters. Cold war era sub warfare.
Chris Gonzalez
Chris Gonzalez 6 kun oldin
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moustafa refaat
moustafa refaat 6 kun oldin
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 ?
Tomos Halsey
Tomos Halsey 6 kun oldin
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.
doviejames
doviejames 6 kun oldin
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.
UFCMania155
UFCMania155 6 kun oldin
Why didn't German U-Boats have sonar in ww2?
Arlene Martinez
Arlene Martinez 6 kun oldin
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Felipe Cruz
Felipe Cruz 6 kun oldin
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.
BladeTheWatcher
BladeTheWatcher 6 kun oldin
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. :)
iKoyyy
iKoyyy 6 kun oldin
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 !
rondovk
rondovk 6 kun oldin
Unbelievably great video
Paul Loveless
Paul Loveless 6 kun oldin
Loved the metal gear solid effects ❤️
Joel Miller
Joel Miller 6 kun oldin
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.
4Hunnd Degrees
4Hunnd Degrees 6 kun oldin
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Fabrizio Dutto
Fabrizio Dutto 7 kun oldin
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.
tom joe
tom joe 7 kun oldin
The private way technologically regret because rooster sequently water past a coordinated owl. strong, typical noodle
Lechuga Espartana
Lechuga Espartana 7 kun oldin
submariners under attack: Looks like were going to the shadow zone jimbo
Lipziger
Lipziger 7 kun oldin
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!
Feral Feline
Feral Feline 7 kun oldin
Watching this series it should be used by boats for sub quals.
Umair Rana
Umair Rana 7 kun oldin
11:52 ... why dude why... fk... i was just getting a hold.. and you rotated the (whole graph) submarine..
lergic telerg
lergic telerg 7 kun oldin
The puny art relatively cure because virgo compellingly shave after a towering hospital. flashy, handsomely heart
Matas0723
Matas0723 7 kun oldin
I love the fact that the supervisor seemed to be completely drained just by listening and figuring out what can and cant be said
Jf Bee
Jf Bee 7 kun oldin
Does anyone know what program he used to generate the spectrogram?
Feral Feline
Feral Feline 7 kun oldin
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. :)
Donovan Guilfoyle
Donovan Guilfoyle 7 kun oldin
I still want to know about sleeping and showering
Bret Morgan
Bret Morgan 7 kun oldin
20:00 love the MGS sound effect!
Daniel Walters
Daniel Walters 7 kun oldin
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 Walters
Daniel Walters 7 kun oldin
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
Oakstrom
Oakstrom 7 kun oldin
Are you going to talk to a Reactor Operator? I was hoping to see someone I recognized lol
TheEmeraldSword
TheEmeraldSword 7 kun oldin
I was gonna make a joke comment on how a lot of this is classified, *but I'm afraid that's classified.*
Rogelio Paran
Rogelio Paran 7 kun oldin
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?
Douglas Blair
Douglas Blair 7 kun oldin
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.
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