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

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fas.org/man/dod-101/navy/docs/es310/SNR_PROP/snr_prop.htm
en.wikipedia.org/wiki/Sonar
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2020 26 دسامبر

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SmarterEveryDay
SmarterEveryDay پیش 4 ماه
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)!
EinHawking Ponya
EinHawking Ponya پیش 17 ساعت
Man! I love animated videos.
Odin Satanas
Odin Satanas پیش 5 روز
Whats funny is it's not just 20,000 leagues that Verne totally predicted the future, but his space travel one, US launched a rocket (bullet in the book) to get to the moon, from Florida too haha He had his finger on technology pulse for sure, it's like living in 2400 and seeing star trek predict all the current warp drive tech
Thạnh Phạm
Thạnh Phạm پیش 6 روز
Stupid science Science doesn't know Every second the Sun emits billions billions billions ^ billion lightning 0,1 voltage create sunlight, 1 positron + suck 1 electron -- create lightning 0,1 voltage. Science poisoning the world is the solar system rotating inertia. Children alsoknow that inertia doesn't cause A wheel to spin forever. Positron + and electron -- rotate very rapidly after 4, 6 billion years of creating the Sun ' s core, so the core of the Sun rotates very quickly like A super large electric turbine that produces super large electrical energy, Every second the Sun emits 4,1million tons of electricity create sunlight, sunlight moves the circle back to its original position after 8 hours, so pushes the 8 planet to rotate in order
ACE Lakridza
ACE Lakridza پیش 9 روز
I learned things in your video’s that I didn’t even realise my brain could absorb! Thank you🙏
creepy Joe
creepy Joe پیش ماه
@Andrew Galvin have you a link about that? because i don't know that sub's are still using this tech. thx
Jon Lewis
Jon Lewis پیش 3 ساعت
Virginia Class subs have sound absorbing materials in the paint surrounding the hull of the boat.
Ascertivus
Ascertivus پیش 3 ساعت
21:00 Absolutely astounding.
Noah Lorenzo
Noah Lorenzo پیش 3 ساعت
The entertaining soil hypothetically head because romania progressively stain toward a puzzled kite. curvy, deep chemistry
Ascertivus
Ascertivus پیش 3 ساعت
The acoustics lesson and spectrogram analysis were incredible. Wow!
Stephen Austin
Stephen Austin پیش 7 ساعت
2:05 Destin describes WW2 sonar capability, the smirk on the sonar chief's face is priceless. 7:20 no object "shapes" per se in sub sonar target classification, not necessary to the mission. However, "bearing" (aka direction, 0-360 deg, true/relative) is key and instantaneous from equipment in active or passive sonar. 8:00 Getting warmer, bearing rate is used initially to make sure you're not going to run into something, on the right-drawing-left and on the left-drawing-right objects get your attention because they are 'closing' range (6th grade geometry). The fun starts when the classification and Target Motion Analysis (TMA) kick in. Ultimately, when the tactical sonar picture is complete, the conn (control room, derived from "conning tower") has a 3D mental image of own-ship and target with physical and mental overlays of; nautical chart, threat perception, intelligence and most important - forward thinking; what are we going to DO with that info? Classify it, log it, track it, record it, shadow it, play with it, manipulate it, or maybe kill it. Great work as always Destin. Cheers!
Jeanette Armstrong
Jeanette Armstrong پیش 7 ساعت
The cheerful teeth conservatively heal because care ectrodactyly trick through a succinct afterthought. aberrant, abaft fisherman
cgreen339
cgreen339 پیش 8 ساعت
@24:09 the same book doc reads in back to the future?
Octavio Mariani
Octavio Mariani پیش 15 ساعت
What is the program destin uses to analyze the spectrogram?
Sky Gamer11560
Sky Gamer11560 پیش 22 ساعت
It must be so hard being one of those enlisted guys, you can tell how bad they want to get into the classified stuff, but they just can’t
Cogumelos Azuis
Cogumelos Azuis پیش روز
17:30 notice that If you're on open occean, you'll also have reflection from the top in the same way you would if you were under ice, because the impedance difference between water and air would create a similar interface there is between ice and water from the acoustic point of view
Aldon Dekock
Aldon Dekock پیش روز
The nosy knife visually yell because note geographically bruise inside a public drawer. demonic, wiggly cast
Gio Gwno
Gio Gwno پیش روز
The watery size markedly strengthen because scale optimally scrape opposite a condemned disgust. reminiscent, unusual shoulder
Adam Posey
Adam Posey پیش روز
This guy is crazy smart! He dumbed it down enough for my 12 to help me understand and that's saying something!
Steve Walden
Steve Walden پیش روز
Destin, read Tom Clancy's Hunt for Red October and SSN. You will love it!
Aidan Sharples
Aidan Sharples پیش روز
Modern active sonar doesn't send a repetitive ping of the same frequency, they project a continous song of cat and mouse(natural sounds such as those krill pops he mentioned). I think justin actually captured some of that recorded natural background sound in his footage from the briefing room. Ambient noise like that would not exist on a sub which is specifically designed to eliminate this.
Larl Sagan
Larl Sagan پیش روز
Loved the Mythbusters style intro. Much nostalgia.
iñigo korraletxe
iñigo korraletxe پیش روز
Destin thanks for your passion and dedication, this one of my favorite videos of YT, and probably for other people too. This is the perfect manifestation of what was internet thought for, the pure democratization of the wisdom. Thanks also to the US Navy to give Destin this opportunity.
NATOcodename762
NATOcodename762 پیش روز
Searching RP 33 on google....
Cardaño Ìsrael
Cardaño Ìsrael پیش 2 روز
This probably the best topic to learn in Science! I had new learnings.
Thusitha Dananjaya
Thusitha Dananjaya پیش 2 روز
This is so coool... Thanks, Destin...
Crazy Clown
Crazy Clown پیش 2 روز
China
DominoDonaldson
DominoDonaldson پیش 2 روز
Does the DOD have to clear all these videos? Or are you just trusted with all this information? I wouldn’t ask this, but we also let joe biden run our nation’s economy into the ground.
Fergywurst
Fergywurst پیش 2 روز
Destin @11:13 you depicted the sub nose with sound receptors. That particular pattern of receptors and individual spacing most likely portray a very important part of the equation on sound direction and speed of return to each receptor.
misguidedsaint 3
misguidedsaint 3 پیش 3 روز
Both the speed of sound and the speed of light can change in temperatures of air or liquid
Matt Favaloro
Matt Favaloro پیش 3 روز
I am one minute in Chief sonar officer AKA The Man that can read The Matrix and I bet you he is extremely thankful for that towed sonar array that must have been a game-changer when I started that no more being followed directly behind in your blind spot. I do find it rather amazing how from those lines they can tell you what type of ship animals debris it must take quite some time to learn that language of sonar reading
Ebola Warrior
Ebola Warrior پیش 3 روز
With the right algorithms and filters the multipath would be a benefit to getting a location down pinpoint it would seem.
lhmark73
lhmark73 پیش 3 روز
Thanks for another great informative fun video. Appreciate it and very much enjoyed
Timo Witte
Timo Witte پیش 3 روز
15:08, probably about chirps / frequency sweeps instead of pings ?! :D
Cameron Campbell
Cameron Campbell پیش 3 روز
Russia and China know about the shadow zone now, thanks for losing world war 3 Dustin
Flamingo Sextet
Flamingo Sextet پیش 3 روز
“One ping only, Vasili”
Louie Uriostequi
Louie Uriostequi پیش 3 روز
Dude stop stfu you’re getting annoying explaining
Louie Uriostequi
Louie Uriostequi پیش 3 روز
We are not slow and stupid like you and other people I can perfectly understand the soldier, you’re just making everything sound so difficult to understand
lastofthemohicans
lastofthemohicans پیش 3 روز
Fascinating.
Anderson Venturini
Anderson Venturini پیش 3 روز
WoW! Awesome video!
Maciek
Maciek پیش 3 روز
I think that it would be easier to learn something about sonar from professional fishermen than military submariners.
IIsatomi3ii
IIsatomi3ii پیش 3 روز
Passive sonar is nuts when youre good at it. There are sailors out there that can identify specific boats, not classes, specific ships down to name and registration number level of accuracy just from listening to how it operates anf memorizing it
flyingchimp12
flyingchimp12 پیش 3 روز
i'm just more amazed by the fact that they were doing this 80 years ago
Akpzombies
Akpzombies پیش 3 روز
Love the video!! As a submariner I’m am surprised they let him sit on the ward room table they treat it like royalty on my boat🤣
Scissorbeaks games
Scissorbeaks games پیش 2 روز
I also caught that part. They were being really nice to Destin.
Maciek
Maciek پیش 3 روز
What program did you use in the spectrogram part?
Alex Pink
Alex Pink پیش 4 روز
That's Cypher in the Matrix dude....
jim2386
jim2386 پیش 4 روز
*pushes glasses up on nose* welll akchually....the term is a school of “Nautili” not “Nautiluses” Cactus -> cacti Ambulance -> ambuli Nautilus->nautili ;)
Leo2245
Leo2245 پیش 4 روز
this makes we want to play Cold Waters now
A Terran Federation Citizen
Cold Waters is a video game about Submarine warfare, it deals with a lot of this sonar stuff.
Elienguitar
Elienguitar پیش 4 روز
RADAR vs SONAR = Longitudinal wave vs. Transverse wave.
Diego Zimmerman
Diego Zimmerman پیش 4 روز
Best episode ever!
Aoru
Aoru پیش 4 روز
i love these episodes of Subs, lots of math and learning.
chigginheadD
chigginheadD پیش 4 روز
16:21 Leeloo Dallas Multipath
chigginheadD
chigginheadD پیش 4 روز
Pavarotti
Randomix40
Randomix40 پیش 4 روز
Next episode on the submarine series: How to calculate the launch codes on a nuclear submarine 😆
Maniac3020
Maniac3020 پیش 5 روز
At the start of the video, I knew more about passive sonar than Dustin. At the end of the video, we both knew more than we did at the start. Excellent.
Tony B
Tony B پیش 5 روز
Great videos keep it up.
Arpit Mann M7
Arpit Mann M7 پیش 5 روز
that bold guy is seriously dope
pranav punnamaraju
pranav punnamaraju پیش 5 روز
Hey destin.....i have an offer .... can i be ur assistant......no salary Ur life is awesome,....i want to be a part of it......
Daniel Winternheimer
Daniel Winternheimer پیش 6 روز
whatever you do, do not pause the video at 5:51
RideTheSpiral28
RideTheSpiral28 پیش 6 روز
I'm thankful that Sonar guy is on our side. Smart smart man
Josh Laughlin
Josh Laughlin پیش 7 روز
10/10 for driving my dog nuts.
Jesus mario De la garza
Jesus mario De la garza پیش 7 روز
I'ts 3 am and I have a biology final exam at 8 am, should I beworried? P.S. I love all you'r videos they are really informative and it seems as if you are really interested in learning about everything, keep up the good work
jennifer wright
jennifer wright پیش 8 روز
As a mom of a sonar tech submariner I appreciate this video so much!
nefelibatacomingthrough
nefelibatacomingthrough پیش 5 روز
loose lips sink submarines.
ACE Lakridza
ACE Lakridza پیش 9 روز
Hated math in high school! 😱😆
ACE Lakridza
ACE Lakridza پیش 9 روز
That sonar guy is a woman’s dream man. Always listening, never getting mad! Marry me please🙏😆
muhd hafiidz
muhd hafiidz پیش 10 روز
Malacca is region on Malaysia
TheTank1988
TheTank1988 پیش 10 روز
Not to be dramatic but I gotta say this is literally one of the most interesting videos I've ever seen! Also thank you for your service, US Navy!
Johannes Ehrler
Johannes Ehrler پیش 10 روز
20.000 Leagues was such an awesome book. Jules Verne truly was way ahead of his time. Fun Fact, the "s" in Jules is silent
Phạm Hiếu
Phạm Hiếu پیش 7 روز
Yep thank to Destin I actually bought the book and finished it like a week ago. And it truly was ahead of its time, I really like that book.
Shahroz Mirza
Shahroz Mirza پیش 10 روز
So in simple words its lite you are in the car with closed eyes and you have to guess what pressed the horn....
Jaded
Jaded پیش 10 روز
Those circle things on the back of phones are for small handed people.
陳軍民
陳軍民 پیش 11 روز
Man, maybe you need play Red Storm Rising several hours, and you will all know what that waterfall graph will look like. Never like that.
Abel Ferquiza
Abel Ferquiza پیش 11 روز
If you do the same in a wwii boat is the same to me...
Chuck
Chuck پیش 12 روز
Some of the best content on YT.
VOZITKO
VOZITKO پیش 12 روز
3:50 its basically Waldo game. Waldo?
Whu Dhat
Whu Dhat پیش 12 روز
They need to station that man in the tropics, he's waaayyyyy too chill haha
Cody The Serg
Cody The Serg پیش 13 روز
TLspherical = -10 Log { I(R)/I(1 m)} = -10 Log{1/R2} TLspherical = 20 Log(R) Shadows zone
si vis pacem para bellum
si vis pacem para bellum پیش 13 روز
You know the XO was actively contemplating whether this interview would be good for his career or if it would destroy it :)
AJD Channel Tv
AJD Channel Tv پیش 14 روز
Subscribe
Vijay Krishna
Vijay Krishna پیش 14 روز
Awesome work dustin.
Rene Sotelo
Rene Sotelo پیش 14 روز
My mind was blown ……
andyspar666
andyspar666 پیش 15 روز
Wow what an amazing video. I certainly learnt a great deal. Some great examples and explanations. Thanks for making these and keep them coming.
mattiik
mattiik پیش 16 روز
sub brief has a good channel on this stuff
Fermín Petrone
Fermín Petrone پیش 16 روز
I recommend the french movie "the wolf's singing" its about acoustic warfare
Cory Norell
Cory Norell پیش 16 روز
Around 5:10 - it's amazing how consistent the sounds made by animals are.
Oddball 2012
Oddball 2012 پیش 17 روز
What a waste of time. If it's really that hard for him to do the interview, just say they aren't allowed to do it full stop. Spending the whole time acting like somebody is trying to trip him up with simple straight forward questions about things that are general knowledge was pathetic. In the end, he basically said nothing. Obviously he can't go into specifics, but acting all cagey when discussing the general theory of sonar and it's application was laughable.
Jamie Carlson
Jamie Carlson پیش 8 روز
I agree, that annoyed me more than anything.
Matthew Salvatar
Matthew Salvatar پیش 17 روز
BD is an easy equation to figure out, it's also easily changed with and acoustic screecher. Basically, listen to the range, then send screechers that cancel said waves, this will effectively create multiple shadow zones.
Charles Tsang
Charles Tsang پیش 18 روز
There was a pretty good video game in the 70s called Harpoon, in which you were in charge of a US Naval Carrier group including submarines. I definitely remember the it teaching about how your ship sonar would bend and work in concentric circles. The thermocline effect was also described as was those acoustic corridors. I have to say that Destin's explanation was way more clear... :) . But in the game you can also drop a mic on a line between those layers by deploying a helicoptor on ASW duty. Also interesting that the only pickups they discussed were the ones on the hull, I'm sure the SSN-21 Seawolf sub game back in 94 you could deploy a towed acoustic array which would give more isolation from the submarine's internal noises as well as another more distant audio pickup to help triangulate.
IllLoLOnUrGraves
IllLoLOnUrGraves پیش 18 روز
He said "it's classified". I heard "we're 10 years late"
Ni Luh Ayu Sri Antari Putri
I really appreciate this channel! You did a great job 👍
David Allyn
David Allyn پیش 19 روز
thank you for opening my mind. this was such an exciting and unique series. I appreciate your hard work!
MrTwisted
MrTwisted پیش 19 روز
I like these videos about the subs. There's a lot I already know, and have guessed correct, but there's still a lot of knowledge to be had. I would like to see a video about [Redacted] [Redacted] [Redacted] and see if [Redacted] [Redacted] [Redacted] [Redacted] . Do you think [Redacted] would do it? Or is it too secret?
madkent99
madkent99 پیش 19 روز
Brilliant video, thank you
Paul Green
Paul Green پیش 19 روز
The Chief with whiteboard has 1) given a new contact a decreasing bearing rate and 2) got the direction completely wrong!!!
ND Channel
ND Channel پیش 19 روز
BD =17✔️LD if LD >60m ✔️:squareroot BD = LD+60m if LD
dGriggs
dGriggs پیش 19 روز
Eye opening!
baron
baron پیش 19 روز
I want to know why they use higher frequencies as opposed to low frequencies. Lower sound waves have longer wavelengths so wouldn't the lower ones reflect quicker? Or do higher frequencies travel quicker even though they have a smaller wavelength? Pls reply Destin!
Erik Halpert
Erik Halpert پیش 19 روز
It is actually not that hard to get a usable shadow zone equation.
User Unfriendly
User Unfriendly پیش 20 روز
you can probably sort out the correct responses from a sonar ping as long as you know your distance from the ice above you and ground below you.
Chazzsee
Chazzsee پیش 20 روز
Educational💻Glad there are no-gos in place. Not willing=Restrictions and nondisclosures are necessary! Keep it 🤐 millions are👀Not Mr.Rodger's neighborhood🌏🌍🌎
exgangster 843
exgangster 843 پیش 20 روز
Watching this In time Indonesian naval submarine (KRI Nanggala) missing/sunk. And realize that sub itself is a multicomplex system. And th system relied on a crew + hardware n software to cruise th world under. Thx for th enlightenment in Sonar! I dont give like very often. But, u deserve it!!
bope1469
bope1469 پیش 20 روز
No go...like the Russians don’t know any of this lol
Ryan Grover
Ryan Grover پیش 21 روز
I think the CO had the XO beat in total cribbage wins.
Bourgoundos Bourgoundos
Bourgoundos Bourgoundos پیش 22 روز
I haven't understood why they don't use the circular radar like graph to see the moving of contacts around them. The bearing graph with the contact angles in a straight li e seems so unnatural. Why do they prefer it?
Eddie J. G.
Eddie J. G. پیش 18 روز
Because generally, passive sonar traces don’t inherently reveal range.
Tamás Gulyás
Tamás Gulyás پیش 22 روز
-"I would love to go back and talk to my math teacher but i can't." -How so? -"Its classified."
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