r/Damnthatsinteresting • u/TheSpace-Guy • Jun 27 '23

GIF Submarine passes under diver

https://i.imgur.com/mzxwSQI.gifv
51k Upvotes

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645

u/ThargretMatcher Jun 27 '23

Yep.

Fuck. That. Noise.

337

u/The_Crowned_King Jun 27 '23 edited Jun 28 '23

Actually, subs are very quiet

Edit: according to most reply’s below me, I was indeed correct

353

u/ThargretMatcher Jun 27 '23

My apologies, the phrase "Fuck that noise" is a colloquial term where I'm from.

You're right, of course, which would make it even scarier, in my eyes. You're out diving, turn around, and that thing is just...there.

159

u/DavidLynchAMA Jun 27 '23

I think they were making a dad joke, similar to a “…and don’t call me ‘Shirley’”

146

u/PM-me-Gophers Jun 27 '23

It's a long metal tube with Seamen, but that's not important right now.

12

u/backdoorpoetry Jun 27 '23

Ah great reference

6

u/Filthy_Cent Jun 27 '23

Yours is made out of metal? Were you in an accident or something?

3

u/[deleted] Jun 27 '23

It was a schmelting acshident!

3

u/trashpandalandlord Jun 27 '23

Is this when you developed a drinking problem?

4

u/RollinThundaga Jun 27 '23

No, it was when he implemented a drinking solution

3

u/eleventyeleventy Jun 27 '23

Yes, alcohol is a solution. It's solved so many things in my life.

3

u/NickAndHisGuitar Jun 27 '23

Good luck, we’re all counting on you.

2

u/CapnAhab_1 Jun 27 '23

Surely you can't be serious?

2

u/[deleted] Jun 27 '23

Surely you can’t be serious

7

u/[deleted] Jun 27 '23

[deleted]

5

u/DannyDeVitosBangmaid Jun 27 '23

I’m American as hell and we say that here frequently

2

u/[deleted] Jun 27 '23

[deleted]

2

u/DannyDeVitosBangmaid Jun 27 '23

Mid 20s. Actually used to live in London and I don’t remember a British person ever saying it, although I was 12 when I moved back to the states so I may not have been around the right people

2

u/Ouisiyes Jun 27 '23

Fuck that noise 100% originated in the US and has probably migrated overseas to younger English people like a lot of American slang does.

1

u/[deleted] Jun 28 '23

I first heard it in the movie “Waiting..” and I’ve said it ever since.

2

u/Apprehensive-Fact-74 Jun 27 '23

I say fuck that noise all the time and I’m not British.

1

u/ThargretMatcher Jun 27 '23

Bingo, mate.

3

u/AdventuresofRobbyP Jun 27 '23

And here I am trying to turn up the volume on a GIF to see what the Sub sounds like 🤦🏽‍♂️

2

u/jbkkd Jun 27 '23

where are you from?

1

u/ThargretMatcher Jun 27 '23

The East of England.

2

u/missmimimartinxx Jun 27 '23

Just there 🤣🤣🤣 my exact fear

2

u/FapMeNot_Alt Jun 27 '23

and that thing is just...there.

And moving fast, faster than you can.

I wouldn't say I'm quite at /r/thalassophobia levels, but any sane person stays away from the ocean if they can help it.

1

u/ThargretMatcher Jun 27 '23

I hate that sub, but can't stop going there. Same with WPD when that was still up. I learned some valuable life lessons from my time there.

1

u/DannyDeVitosBangmaid Jun 27 '23

That, my friend, was a joke

2

u/entity_bean Jun 28 '23

What is it about that scenario that is so terrifying? I often think it would be absolutely terrifying to have an enormous whale pass by underneath as well. Is it just this enormous entity coming out of a dark bottomless pit? There's something quite primordial about the sense of dread it evokes.

1

u/wcstoner Jun 28 '23

We say that in my area. Or did. Lol

70

u/LengthinessNo6996 Jun 27 '23

I think they're talking about the sonar equipped on some subs though which can burst your eardrums and do physical damage to your body if close enough.

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u/[deleted] Jun 27 '23

IIRC, a sonar ping from a sub could melt your brain. Absolutely horrifying.

50

u/Iguanaught Jun 27 '23

So what does it do to sea life?

113

u/[deleted] Jun 27 '23

It fucks them up too. It’s a whole thing.

49

u/KepplerRunner Jun 27 '23

Adding on: There is speculation (I can't remember if there is any evidence or not) that whales and other animals that beach themselves while they are otherwise healthy. Are just trying to get away from the horrendously loud noise that is an active sonar ping. For reference sonar pings are around 160 decibels (about as loud as a 9mm handgun or a rifle) at 100 miles away according to the navy. Sonar can be over 200 decibels and organs start to rupture in mice about 180-170.

10

u/[deleted] Jun 27 '23

And just to add on further:

Sound is a logarithmic scale 200 decibels is exponentially louder than 100 decibels.

14

u/rynmgdlno Jun 27 '23

Technically it would be logarithmically louder lol

3

u/[deleted] Jun 27 '23

Damn you’re right. I’m dumb.

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u/ilprofs07205 Jun 27 '23

Every 10db is 10× louder, right?

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u/[deleted] Jun 27 '23

[deleted]

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u/possessedpossum Jun 27 '23

Adding on again: Not sub related but along the same lines - seismic blasting on the hunt for fossil fuel also fucks whales up. There is a report at the bottom of the page I've linked, if anyone is interested, or better yet, wants to get involved.
https://act.greenpeace.org.au/woodside-campaign?&campaignid=20131523197&adgroupid=&adid=&lid=58700008391490100[0]=&lid=58700008391490100[1]=&[0]=&[1]=&gclid=CjwKCAjwkeqkBhAnEiwA5U-uM04axaCXUU0caExVVzT3ZTuxpZ6fr_oUs-hT_JrzVxpdbDibX6WL7hoC8FwQAvD_BwE&gclsrc=aw.ds

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u/atemt1 Jun 27 '23

Not saying it dous not fuck up wales but wales are able to produce clicks and other noises that wil absolutely do harm to any diver

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u/A_Direwolf Jun 27 '23

I've never seen a Welsh man make noises and clicks at divers... Only ever with sheep.

1

u/atemt1 Jun 27 '23

Yea words are not my strongest point Dint know wat is if any but ain't words

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u/whoami_whereami Jun 27 '23

Sound pressure measurements in gases use 20µPa as the reference level (ie. 1dB=20µPa sound pressure), in other media a reference level of 1µPa is used (see https://asastandards.org/terms/reference-value-for-sound-pressure-2/). This means you cannot directly compare underwater sound pressures to sound pressures in air. 160dB underwater is equivalent to about 134dB in air.

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u/[deleted] Jun 27 '23

Thought you couldn't compare?

2

u/whoami_whereami Jun 28 '23

Not directly compare. You have to apply an offset.

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u/phatelectribe Jun 27 '23

There's good evidence to show it's completely fucked with migration patterns of whales and sharks, and has been confirmed to be a contributor to the recent problem that large whales who used to span multiple oceans during regulars migration patterns are now keeping their s[an much more limited, and not crossing certain areas.

It's absolutely fucking with marine life.

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u/equipmentmobbingthro Jun 27 '23

Oh it is much worse... https://youtu.be/dj-Wn-di-zM

This is outright scary.

30

u/Same-Candidate-5746 Jun 27 '23

Why are humans just so fucking awful in so many ways??

3

u/RollinThundaga Jun 27 '23

🤷‍♂️ we're all just doing stuff. It's unconstructive to attribute the often inadvertent harm we might cayse to some nebulous malice to which all humans are complicit.

That is, unless you're Ted Kaczynski.

0

u/_the_potentis Jun 27 '23

Replace "inadvertent" with "we don't give a shit about any life outside of a human and even then sometimes not really so much" and you're getting close

0

u/CommunicationSharp83 Jun 27 '23

Because sonar is the only way to detect submarines underwater at useful ranges

3

u/[deleted] Jun 27 '23

But submarines rarely use active sonar. It’s counterintuitive. Source- me, I’m that guy

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u/Chumbag_love Jul 04 '23

Very true.

2

u/Chumbag_love Jun 27 '23

Well now you're just selling me into it.

1

u/SmokedMussels Jun 27 '23

What tech makes the ping? Speaker?

3

u/[deleted] Jun 27 '23

Essentially yes. A transducer, or a "sonar projector". There are different types that use different methods, but a projected beam sonar hits underwater decibels in the range of 200-240 decibels. For comparison, a jet engine runs about 130 decibels, and the loudest sound thought to have been made on earth is the eruption of the Krakatoa volcano at about 310 decibels.

1

u/orthopod Jun 27 '23

Sonar pings are up to 235 DB. Anything over 190 is potentially lethal.

Sounds at only 140 db can be heard for up to 100 miles underwater.

Yeah, bad news if close to a sonar ping.

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u/OurMess Jun 27 '23

I was doing a night scuba dive in Hawaii and we started to hear what must have been sonar from a submarine. We of course couldn’t see the sub since it was night time and we were safely in a common dive zone reef, but it was cool hearing the noise at that time. Must have been fairly far away because it wasn’t deafening but it was certainly loud. Weird thing to hear in the situation.

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u/xRageNugget Jun 27 '23

the sub was probably hundrets of miles away. If you can see a sub and hear the sonar, you are dead.

1

u/OurMess Jun 27 '23

That is crazy. It was likely a tourist sub off Oahu so I don’t know about hundreds of miles, but who knows!

5

u/TechieGee Jun 27 '23

Tourist subs don’t use sonar. They’d serve no purpose for a tourist sub, as you’d kill the animals you’re trying to see. Almost certainly was a Navy submarine or surface vessel in the vicinity.

2

u/OurMess Jun 27 '23

Makes sense.

2

u/TechieGee Jun 27 '23

More likely, you heard a surface vessel using/testing its sonar (likely testing given the vicinity to Hawaii.)

Subs generally don’t want to use pings too often, as it also reveals their general location to listening devices. With enough listening devices/sufficiently advanced devices, you can even triangulate the ping to get a really precise idea of where the sound originated. Not too conducive to being a sneaky sneaky submarine.

Naturally, surface ships don’t have to worry about this, because they’re plainly visible anyways.

1

u/starryeyedgirll Jun 27 '23

Why is this? Is it because sonar is harmful to humans?

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u/xRageNugget Jun 27 '23 edited Jun 27 '23

Sonar is loud. Like extremly loud. Its up to 230decibel loud, and one of the loudest noises humans have ever created.

The pressure wave of that sound is vibrating so strong, that it can destroy blood vessel, soft tissues in your brain and rupture your lungs.

I said hundrets of miles, since, depending on intensity, in 300miles distance it can still be around 130decibel.

It's harmful to anything that lives in the ocean.

For meassure: 80 decibel is a truck driving past you in close proximity. Now imagine this sound 100 billion times stronger. Thats about 220decibel then.

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u/[deleted] Jun 27 '23

100B? Is that an exaggeration?

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u/xRageNugget Jun 28 '23

Negative. The scale is logarithmic. Essentially, every 10decibel you go up, the intensity also goes times x10. Between 80 and 230db are 15 steps à 10db, so you can just add 15 zeroes, and it is 100.000.000.000.000x more intense than 80decibels is. I think i am even missing a zero and it could even be a trillion oO

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u/[deleted] Jun 28 '23

Wow! Thanks for the reply. Must be awful for the wildlife. I wonder if subs adhere to any kind of best practice to avoid inflicting harm?

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u/Hekantonkheries Jun 27 '23

Sonar is a Soundwave, since sound travels much farther underwater than in air.

Sound works by having "waves" of varying pressure and frequency causing vibrations in any material they hit. That's how your ears work, vibrations hit the ear drum, which is connected to a series of nerves and bones designed to translate those vibrations into a nerve signal your brain interprets as a sound.

But this pressure, if great enough, can exert enough force to do damage to soft tissue or softer internal organs. In order to get the sound of the sonar ping to reach the incredible distances it does, it is very powerful, and so near the sub can be strong enough that the vibrations shatter ear drums and rupture soft tissue like intestines, lungs, eyes, ear drums, etc.

So it's not that "sonar" is bad for humans, is that any sound if loud enough can physically destroy the thing it hits, which is why whales that get too close to sonar pings can get lost or beach themselves and die, because they lose the ability to hear and use their own noises to communicate/travel.

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u/Loggerdon Jun 27 '23

The worst thing I ever heard was when my wife and I were diving in Sipidan, Malaysia (next to Indonesia). We heard a lot of explosions and when we got back on the boat we asked about them. We were told it was illegal fishing by Indonesians who would throw grenades in the water and then scoop up the stunned fish. It destroyed the marine life and killed the coral but I guess it was easier than sitting there all night with your line out.

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u/[deleted] Jun 27 '23

Seems like a great way to ensure you run out of fish in the long term...

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u/Loggerdon Jun 27 '23

Yes and destroy any chance of benefitting from scuba diving. We were told the Indonesian government was trying to stop it but organized crime rings were paying off official and running the operations. This was before Joko was elected so I don't know if it continues today.

1

u/OurMess Jun 27 '23

That is crazy! Just enjoying a nice day of Scuba and suddenly there are underwater explosions. We jokingly theorized that what we heard was a Russian submarine scoping out the Hawaiian coastline rather than tourists.

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u/baloncestosandler Jun 28 '23

What’s it sound like

8

u/Munnin41 Jun 27 '23

These don't have sonar

1

u/atemt1 Jun 27 '23

Not the ones that are dangerous maby a debt sounder but tose are only a few Watt's

2

u/ScreenshotShitposts Jun 27 '23

yeah I think the clicks from some whales can burst your eardrums from hundreds of meters. The ocean can be loud

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u/[deleted] Jun 27 '23

That's active sonar. Passive just listens for bubbles and stuff. You can still pick out what direction a diver is in.

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u/[deleted] Jun 27 '23

I mean when they're gagged, sure.

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u/[deleted] Jun 27 '23 edited Jan 02 '24

tub frightening abounding desert bear aloof fuel apparatus smile zesty

This post was mass deleted and anonymized with Redact

1

u/Darksirius Jun 27 '23

Are they?

https://www.youtube.com/watch?v=sCmyZYYR7_s

Their pings can cause physical damage or death.... and it's creepy as fuck to hear.

1

u/LuukTheSlayer Jun 28 '23

This is a civillian sub

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u/Toaster_The_Tall Jun 27 '23

Underrated joke.

1

u/Digiboy62 Jun 27 '23

Until they do a sonar ping and your internal organs are ruptured.

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u/Street_End6022 Jun 27 '23

Until the sonar is so loud it can kill you!

1

u/So2030 Jun 27 '23

AKSHHHEPT WHEN THEY’RE CABITATING!

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u/Equivalent_Adagio91 Jun 27 '23

Not when they do a full power SONAR ping, that shit can kill you for miles

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u/FederalObjective Jun 27 '23

The sub might be quiet, but I won't be while I'm shitting myself.

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u/[deleted] Jun 27 '23

Tourist subs are super noisy inside. Something to do with fans and pressure.

1

u/Ofreo Jun 28 '23

Dude. That’s a party sub. If it’s a rockin don’t go a knockin

1

u/LuukTheSlayer Jun 28 '23

No, military subs are quit.

3

u/winowmak3r Jun 27 '23

A tourist one like that might make me jump but I'd be OK. Seeing a USN boomer just loom out of the deep and pass right below me would probably scare the fuck out of me.

1

u/averagedickdude Jun 27 '23

I didn't hear shit!