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 (https://www.patreon.com/smartereveryday)!

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

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.

great guy and a good job

So basically sonar is a lie

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.

Shadow Zone👀.

Super interesting program and very well explained thank you very much.

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Classified!! Classified!! And even that officers are classified!!!!

"....like I had there originally" haha

4:40 I’m now convinced that Destin is voicing Mickey Mouse

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.

relative bearing ..........the kind that takes the special grease

the chinese probably have the blueprints to all of it

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

Capt. Marko Ramius: "Give me a ping, Vasily. One ping only, please."



The Hunt for Red October 1990

I do get smarter every time after i watch your channels !
Good job and thanks for sharing it.

lol, they need a safeword for when he's asking about secret stuff

How about lidar?

you're like a drog, you don't let me work! I want 'just one more'! Thank you!

Nice video! The Party appreciates. Glory to the CCP!

Great content...!

I have a question. Does plastics floating in the ocean affect sonars?

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

i want a spectographer

Hey so the Navy edited his video for him!

I learned something new ...Great video . Thanks for posting it !

This channel went a long way from flipping cats for science

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?

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

Why is the sub called a BOAT and not a SHIP ?

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

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What about LIDAR?

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.

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great video

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?

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Great video thanks for the effort!

North Korea be like🕵️✍️

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 ?

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Dude it`s my 5th time watching this vid

radar and sonar are not the same thing lmao

this might be the best video in the sub series

Fascinating stuff!

I understand how the speed of sound changes with density, but why pressure?

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

Shadow zones probably are constantly changing. Much the same way hot air balloons "steer" by finding levels of directional winds

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.

Incredible video...I watched it about three times, still didn't get it all. Love your content, sir!

I imagine the Suez Canal wasn't too busy recently...

Media shouldn't be allowed on board to be honest, which is my motto

Loved the "Metal Gear Sold" effects lmao

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Go Navy!

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.

This is one of the coolest videos on Youtube.

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.

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.

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

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This channel would be mandatory to kids if I were a teacher

21:55 imagine Suez Canal Bloked, LUL

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

If it's active you can cancel it

suez canal isnt doing so hot right now

no one else notice nukes rool on the monitors? at 0 minutes 53 seconds

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 !

i love your videos

Love your You Tube site...learn something!

the (awkward nerd laughter) caption literally made my night

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

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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!

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.

Really good video
Thank's alot friends

Thank you so much! This was an awesome learning experience on Sonar

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???

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Really cool episode!

Does active sonar cause whales to go deaf and beach themselves by accident?

I love this channel and one of the most fantastic channels about what we would like to know.

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.

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!

One of the best videos I’ve ever seen on YouTube. 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.

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.

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Fascinating. Those kids in their sub get to play with really cool toys. It does nearly prove false the narrative that only desperate or uneducated people go into the military, I would wager the kids on that sub are smarter than many people who look down on them... I am a grateful American who is proud of our armed forces and pray they never have to fight any weapon in anger. I value their lives too much to gamble...

Each new Virginia Class Submarine runs about 3 billion dollars apiece. The LA classes were probably somewhere around 0.5-1 billion at the time of construction, 30 years ago.

And this is where the Dallas' Sonar Computer said "magma" and Sonar Operator Jones said "Submarine", and then turned the playback speed up to prove he was listening to something mechanical. :)

I hate to say it but all those Tom Clancy books I read really helped me grasp alot of these concepts. Im surprised I actually remembered all this considering I read most of those books over 20 years ago while I was supposed to be paying attention to class in high school. I told my teachers that those books would help me in life some day. Lol. Who's laughing now Mrs Brown? Hahaha...hahaha

Ok. But how do they manage simply not to crash into the next rock?😅

Transforming the coordinate system in real time: absolutely brilliant visualization!

It is totally normal to set your own limit of what you say far before the real one. I wouldn't take a risk. Frankly if i was on a sub and you ask me if sonar works with sound i wouldn't even answer...

Sri Lanka❤

я сподіваюсь , що технології пасивного звукового радару використовується не лише для водного середовища , Ви б могли і на суходолі подібне використовувати .
Впевнений , що військову інформацію ретельно фільтруєте , бо не лише доброзичливі глядачі це дивляться , подальших успіхів Вам бажаю .

15:05 Synthetic Aperture Sonar?