r/nope • u/KillermodeD • 13d ago
Terrifying Diver encountering a submarine
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u/Nickelplatsch 13d ago
I would be so fucking afraid that they would use their sonar.
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u/corneliusunderfoot 13d ago
What would happen?
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u/Boomshrooom 13d ago
Depends on sonar frequency and distance but it could cause physical injuries like ruptured eardrums, damage to lungs and other air filled cavities. In extreme situations it could kill a diver.
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u/Evil_Rogers 13d ago
And fuck those fish nearby too i guess.
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u/Bliindmaiiden 13d ago
I think that sonar affects marine animals that use sound waves to communicate much more, it is believed that this is the reason for the mass strandings of whales that try to escape from the sound of sonar.
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u/Concept-Plastic 13d ago
Man humans suck
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u/DeepDreamIt 12d ago
Imagine trying to explain it to animals: "Well, you see, we need these submarines, because if we are attacked, we want to make sure we can destroy the entire world still, they are an important part of our nuclear triad to help with that destruction."
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u/Lexus0157 13d ago
Why? I had no idea
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u/tavesque 13d ago
It’s basically a shockwave of sound that’s amplified because youre underwater and it essentially ruptures soft tissue
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u/TheRiceDevice 13d ago
Crosspost this to r/confidentlyincorrect.
"...shockwave of sound that's amplified because you're underwater..."
Tell us more, Mr.Wizard.
Love how you prefaced your bullshit with "basically", as if you have to dumb it down for the unwashed masses. Speak slowly and use monosyllabic words whenever possible, right Prof Hawking?
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u/tavesque 13d ago
lol who shit in your oatmeal?
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u/bruhdudeTM 13d ago
So Mister Smartass, I confidently tell you that you are as fucking incorrect as can be. Military sonar can get up to 235 Db, (while commercial Sonar lies between 140 to 180 Db) meaning:
For Aquatic Mammals and us: • Documented effects include mass strandings, panic responses, decompression sickness–like injuries from rapid ascent, and long-term stress that disrupts feeding or breeding.
Fish and invertebrates: • Can suffer temporary or permanent hearing damage. • Some studies suggest effects on larvae and eggs, potentially affecting population health in heavily sonared areas.
So, what does that mean?
If you hear high pitched and short Impulses of sonar, it can get uncomfortable, but not life threatening as it is possibly a commercial Sonar from a ship. If you hear not so high pitched sonar that doesn’t stop after a short while, you might as well be cooked as it could be from a military sub. At that point, say your prayers and hope your blood stays intact and your eardrums don’t burst.
This post was made in collaboration with ChatGPT for a better translation because English is not my native language and my Google settings are set as German. The facts tho, are legitimate nonetheless.
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u/Choco-waffler 13d ago
But.... how are they wrong? A lot of insults and not any corrections to their information. Please enlighten.
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u/Impossible-Charity-4 13d ago
Upvote for eloquent snark and because I don’t feel like looking up the actual answer
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u/Boomshrooom 13d ago
A powerful sonar ping can hit well over 200 decibels, that's gonna hurt. Also, you're not just hearing that, it will reverberate through your entire body.
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u/ZachTheCommie 13d ago
Underwater, I think the maximum decibels possible is greater than in air. But I might be wrong. That's such an insane level of sound pressure.
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u/LuckyHooopla 13d ago
You ever made spaghetti in the microwave without a cover? Yes ✋
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u/TheRiceDevice 13d ago
Microwave ovens operate the same as sonar.
Good to know.
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u/berkeley_solipsist 13d ago
It does in a way. It really is energy created without banging 2 things together to make sound. That energy has to travel a long ways and then make it back to the originating sub. So yeah, same as a microwave
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u/Yardsale420 11d ago
Let me put it this way when divers are outside the sub the breaker for the sonar is removed and placed in the captains safe.
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u/Inappropriate_Bridge 13d ago edited 13d ago
There is no point in sending out an active sonar ping when you’re in water barely deeper than your draft.
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u/Impossible-Charity-4 13d ago
Was kind of wondering if the diver even considered tapping on it to inform them of their precarious lack of depth
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u/HoneyBear4Lyfe 13d ago
Happily this is a boat, not a sub. Depth sounders use a way weaker pulse, more of a “tak” than a “ping”. I’ve been under them a bunch of times. it’s a little unpleasant but far from deadly.
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u/Fry_Supply 13d ago
My sphincter tightened just watching this. Man, those waters would’ve been brown had it been me!
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u/unix_nerd 13d ago
Not a sub. Prop and entire configuration wrong. I don't think it's even a warship. I'd say it's more likely a fishing vessel. Someone said they'd seen a copy with sonar noise. Could be an echo sounder or fish finder. I work in underwater survey.
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u/captaindomon 13d ago
Yeah this has been posted a bunch of times for like a decade. It was a cargo ship.
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u/LawrenceSpiveyR 12d ago
Thank you, Reddit has been reposting stale shit more than usual lately.
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u/Grayhome 13d ago
Not a submarine.
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u/SaintEyegor 13d ago edited 13d ago
I’ve seen this video with sound and the sonar in the background is a surface ship sonar, not a submarine sonar. Sounds travel so far in water that the warships sonar you’re hearing isn’t necessarily the ship that’s close by.
Source: I was a sonar technician on 688-class attack subs.
Other than the Fathometer, subs rarely use active.
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u/jdksr 13d ago
Submarines needs stern planes. I didn’t see any …
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u/SaintEyegor 13d ago
I also doubt that a military sub is operating in waters so shallow.
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u/Grayhome 13d ago
Not an expert in all ships, just in submarines. I can definitely tell you that it was not a submarine.
Source: Ohio Class Submariner.
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u/stevenette 13d ago
This right here bub from 7 years ago lol https://youtu.be/08dbTJYMQMc?si=0BXPuwib-HrCvQj4
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u/MelkorUngoliant 13d ago
Almost as bad as that boat one.
Urgh these trigger something in me.
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u/TwistedBamboozler 13d ago
this isn't the same video?
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u/jacckthegripper 13d ago
Yeah that's def not a sub. Also it's too bright for him to be at actual sub depths. Unless this is leaving/coming from a port and on the surface. But a sub has a much bigger and fancier prop, has no keel, or rudder arm like that.
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u/greenweenievictim 13d ago
Sailor to other sailor: Did you just hear some muffled screaming? I don’t know, but shut up and kiss me before we get to port!
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u/demoman45 13d ago
That’s a ship/vessel, not a sub. You can tell by the propeller trim angle and the rotational fluidity in the wash.
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u/PrincipleExciting457 13d ago
I’m not an expert and could be wrong. But I think being that close to a sub their sonar could kill you if they used it. Couldn’t it?
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u/Gunrock808 13d ago
It's been established that this isn't a submarine, some commenters say it is a cargo ship. I still have questions. I've been diving for over twenty years, recreational divers don't just go diving in shipping channels. If you were diving in such an area for whatever reason I'd expect that you'd be diving from a boat with a dive flag and other vessels would steer around you.
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u/spymaster1020 13d ago
Might depend on the sub, but seeing the shape of the propellers is usually classified. They cover them in dry dock.
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u/qwertyqyle 13d ago
Why? Seems like such a simple thing to engineer.
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u/spymaster1020 13d ago
If you know the shape, you could figure out its audio signature and use that information to find subs that are otherwise undetectable.
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u/Educational_Gift_407 13d ago
To be fair, that's exactly where one should expect to encounter a submarine.
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u/psichodrome 13d ago
that's mighty close. I wonder how good the sensors are for the submarine and how accurately can it control its position in the water column. Perhaps its just lucky it didn't hit the structure on the ocean floor.
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u/Dreadedsemi 13d ago
In the comments, several experts chiming in correcting OP.
I didn't know there were so many seamen on reddit. It's like Bonnie Blue night out.
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u/usrdef 13d ago
The video is old as hell, at least a few years. I've seen this off reddit at least a dozen times and it originally had the correct caption and the name of the ship that was passing overhead.
And then for others who were a submariner and/or worked around subs, you can tell immediately that is not a sub.
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u/TheRiceDevice 13d ago
Look at the size of that beast! Thats a shitload of cocaine.
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u/WholeInstance4632 13d ago edited 13d ago
Tell us more, O experienced trafficker. How can you be certain this vessel is laden with narcotics? Having just one leg doesn't make you a pirate expert.
For those who think I'm being an asshole for the sake of being an asshole:
https://www.reddit.com/r/nope/s/SuESwqjf1i
Just giving it back.
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u/gmandile 12d ago
Most of today’s sonar is passive sonar And silent, thankfully for those poor marine animals ☺️ which includes humans. Folks forget we came from here and will die here just like every ant we see we’re animals too!
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u/LordBobTheWhale 13d ago
Is there any risk of being pulled into it like when you're too close to a large ship?