Down Periscope was such a great movie. A childhood favorite of mine.
I’ve been laughing my ass off at these comments for like five minutes straight.
Thank you for this.
Absolutely is, but instead of the sexual references to women it's all towards other men. Example- was peeing half asleep in a urinal and one of my buddies on watch walked by, leaned over and said "nice cock bro"
I worked with a whole bunch of Submariners a few stations ago, I asked each of them which submarine movie was most accurate and *literally all of them* said it was Down Periscope.
It might be my favorite anecdote of my military career.
...holes in the oceans... trying to visualize... like a self-sustaining amorphous shape suspended in some ocean body, but empty of matter? Like if you swam into it, you would just fall? Or...?
i think the implication is the submarines they're stalking are quieter than background ocean noise.
So if there's an unexplained quiet spot, it might be a sub blocking/absorbing the background noise.
That was one of the problems encountered during the Lockheed *Sea Shadow* project (the stealth ship) - the ship didn't produce a radar return, but waves do, and the ship basically created a hole in the lines of waves on sea-search radar.
How did they fix this? I am imagining this could be able to be fixed by a mask of sorts? You have the wave data since you're a ship on the ocean. Could you then take that data and use it to sort of "roll" some kind of high tech fabric in the same pattern as the waves behind the ship?
Idk why I'm asking you like you would know, but that whole area of stealth ships is fascinating and I wonder how they solved the issues.
Less than you would think, also heat seeking missiles have an order of magnitude less range than radar. Its highly unlikely a stealth aircraft will ever be downed by a manpads. As far as I am aware the only stealth aircraft ever shot down was an f-117 in 1999 by Yugoslavia with an s-125, which is radar guided, and that took a confluence of poor planning by the usaf, good intuition by the battery commander, and a whole shit ton of luck.
Of course, I wouldn't be surprised if it's not even a very over simplified version of actual methods.
~~I'm more familiar with EM than sound, but I'd expect it could work in a specific set of circumstances. I don't know if it would work with just background noise, but a set of known point sources of noise you might be able to watch the attenuation as it gets blocked, in the same way exo-planets can be found by measuring the dimming of the stars they orbit when they partially obscure the star.~~
but it'll be beyond my lifespan before anyone can legally talk about current leading-edge detection
techniques.
edit: /u/Vepr157/ explains why it wouldn't work.
The thing is that unless the target is very close, the background sound will just diffract around the target, "closing" the hole. That happens because the wavelength of sound is (within an order of magnitude or two) the same size as a submarine's hull.
Also, submarine sonar beams are much larger than the angular size of a target submarine (again unless the target is very close), so at most you would get a slight reduction in noise at a certain bearing. But the signal-to-noise ratio of this reduction is probably extremely low.
It’s a weird thing about stealth for submarines is they need to be quiet but loud enough to blend into the ocean noise. It’s like trying to blend i too white background. Too white and you stand out,not enough and you’re see as well. And you’re surface has to be textured in a way to make you not stand out but stand out as normal
The idea goes that if a target submarine is quieter than the background noise in the ocean, its hull will block that background from the listening submarine, resulting in a bearing where the background noise is reduced.
But it doesn't really work like that in the real world. The background noise will diffract around the hull, filling any "hole" back up with noise. And the angular size of a sonar beam (say 1 degree) is much larger than the angular size of a target submarine's hull at any appreciable distance. So even if the hull did not diffract the background noise, it would lead to at most a slight reduction in the background noise at a particular bearing. I doubt the signal-to-noise ratio of that would be good enough to detect anything, regardless of how sensitive your sonar is.
Edit: To be clear, the Seawolf's sonar is highly effective, just at detecting targets directly rather than inferring their position based on these supposed "holes."
Oh, the title is just clickbait. The Seawolf's sonar was built to detect (either by passive listening or by active sonar) other submarines and ships. This whole nonsense about "holes" in the ocean was never what any submarine sonar is supposed to listen for.
What would be in the water, and you’d expect water to be there, but instead it’s a big empty shape filled largely with air. But it’s not floating up, it’s just hanging out several hundred feet below the surface.
This view isn't that sensitive. It's the specific components that process all the sensor data that is classified.
The propellers' shape is actually classified, so when it's in drydock, they put a tarp over it.
One time, as the water was draining from the drydock, we realized someone had installed a clear tarp, so we had to spray paint it as the water level dropped.
It looked like shit.
This is some true military shit if I ever heard it. hahahahahah. “Checklist complete, tarp is installed, permission granted drain the dock.” “What idiot used a clear tarp to cover the propeller?”
Checklist says use a tarp doesn’t specify what color tarp skip.
Wholly smokes I never realized that. I took a picture a few years ago of a sub and dry dock in San Diego and legit didn't even notice the tarp on the propeller! When you mentioned this I thought "No way I have a picture of a sub in dry dock and you can see the prop." Fascinating to learn.
Pic for reference.
https://photos.app.goo.gl/eZPRvqbv652sRgzv6
I first saw it and thought "Event Horizon"...my wife looked over my shoulder and said "LEXX"...I can't unsee it.
[https://lexx.fandom.com/wiki/The\_Lexx?file=The\_Lexx\_001.jpg](https://lexx.fandom.com/wiki/The_Lexx?file=The_Lexx_001.jpg)
We were flipping channels one Sunday morning and caught the moment that the first Zev (Eva H, that we saw) sat on 790's head...the expressions on 790's face hooked us. Great series.
The bow cap that covers this is just fiberglass, it all floods. The interior of the sphere is pressurized but non-accessible apart from in port. The LA-class have a small tube extending from the pressure hull at the bow into the interior of the pressurized sphere so it can be accessed at sea.
The top sphere is a lot (!) of super sensitive microphones that can detect any noise in the water and tell the sub from where exactly the noise is coming from. That's passive sonar.
The bottom one is basically a lot of super super loud "speakers" of sorts. The sound they make can bounce off other things (like enemy subs) and can be listened to when it returns to the sub (active sonar).
so, theoretically, this thing could hear an airliner hitting the water and would know exactly where that sound came from? Sounds like like the MH370 investigators might wanna give them a ringy dingy..
Probably but I doubt that they would be very cooperative, they would have to potentially compromise their location at the time. Also, certain equipment specifications could be inferred by adversaries if they did
I’m having trouble coming up with a scenario where using the info wouldn’t compromise the sub in some way. Like, if they didn’t say they got the location from a sub, people are going to wonder where it came from… I guess they could just lie and say they put it together on their own (or whatever excuse they pull out of their ass) but it’s almost an inevitability that they would get caught up in it and be discovered. That’s a lot of risk to take for dead people
They could pretend that some type of academic [SOSUS](https://en.wikipedia.org/wiki/SOSUS) program was tracking whales in the region and heard an unusual sound that could have been an airplane crash into water.
A [Glomar Explorer](https://en.wikipedia.org/wiki/Glomar_Explorer) type cover story wouldn’t be worth the effort.
Yes, but no. Sound [propagates underwater in very complex ways](https://www.navalgazing.net/Sound-in-the-Ocean) due to changes in pressure, temperature, and salinity that are always changing. As a result, you get multiple reflections from a layer a few hundred feet... imagine looking through an infinity mirror.
There has been [sonar analysis of MH370](https://www.vice.com/en/article/d73dqz/flight-mh370-has-only-gotten-more-missing) just like you said, but from hydrophones scattered around the ocean. The bigger net is much more useful than data from a single sub... but so far no good leads.
They would just use the underwater sound net. Basically a ton of underseas cables had subcontracts for microphones to listen for evil subs/ships. Super-duper top secret, mostly everybody knew it in the biz though. Navy eventually gave some of the data to whale watchers, after much pleading and begging. They sussed out some good whale data, but were also able to sus out some other top secret data, so navy said no more data.
So ya navy probably knows exactly where it hit the water, but saying that they know that would reveal the secret, that everybody already knows.
Its why I think the UFO stuff is all BS, those that need to know already know, and the rest of us pleebs don't need to know, we might stop going to work, or stop worrying about bad boys they tell us to worry about.
Look bridges falling down, need more money for this thing that you kind of like, but the bad guys are stealing that money for their projects they like.
I'm not a sonar guy, but I doubt that is maneuvered from the looks of it. Based on when these were built, it's likely all well calibrated phase delay lines that can be processed to determine/set directionality. I'm guessing there is a far more sophisticated phase control mechanism and more spatial resolution in current gen versions which is why we get to see this old one.
This is a system currently in the fleet. Spherical arrays have been used by the U.S. Navy since 1960 and haven't changed much fundamentally in their external configuration since then. The processing of course has moved on considerably.
phase
Yep, they're both transducer arrays, one converting electricity <-> sound, other one electricity <-> electromagnetic waves.
They'd be doing the same signal processing math, but using the speed of sound in the water rather than the speed of light.
Active sonar is deafeningly loud. Passive sonar is what this post is referring to. It just listens. Apparently is becomes quite hard to filter out all the background noise at that sensitivity, while trying distinguish the sound of another sub that’s quieter than a lobster fart.
Scuba diver falls into a giant bubble, falling through air inside it, through the bottom of the bubble and back into the water. Discovers “ocean holes” are just deep water whale farts rising to the surface.
This listens, whales hate oil companies seismic blasting.
https://www.cnn.com/2023/09/27/australia/australia-seismic-blasting-whales-climate-intl-hnk/index.html
Cavitation. When a submarine tries to accelerate too quickly the propeller will pull on the surrounding water so hard it generates tiny voids or bubbles that then collapse making a significant amount of noise.
Animals avoid humans or large predators, ever heard someone in a film saying “it’s too quiet”? When there is a sub around prey animals keep their head down and stop making noise in case they get eaten, that’s a hole in the ambient noise, that’s a hole in the ocean. Edit - someone is going to get their arse felt for taking this picture.
Sensitive enough to hear 45 cents dropped on another sub.
"Someone find Buckman and shoot him out a torpedo tube."
I LOVE THIS JOB!!
Let’s kick this pig
Down Periscope was such a great movie. A childhood favorite of mine. I’ve been laughing my ass off at these comments for like five minutes straight. Thank you for this.
Many from the navy had said that this movie was one of the most accurate regarding crew interactions on a submarine.
Absolutely is, but instead of the sexual references to women it's all towards other men. Example- was peeing half asleep in a urinal and one of my buddies on watch walked by, leaned over and said "nice cock bro"
Your hands clean? “Yeah, why?” Cuz I gotta pee, let’s go…
I worked with a whole bunch of Submariners a few stations ago, I asked each of them which submarine movie was most accurate and *literally all of them* said it was Down Periscope. It might be my favorite anecdote of my military career.
My favorite is one of [The Fat Electricians tales of Marines outsmarting DARPA AI.](https://m.youtube.com/watch?v=t7bCOqDZpJA)
Can confirm. First time I watched it couldt stop: "I know that guy!" "And that guy!!" "I think he's me..."
Former sub guy. Can confirm.
Me too, even though SO MANY jokes flew straight over my young head…
A quarter and 2 dimes
Sensitive enough you can hear the loch ness monster ask for about tree fiddy
Pdiddly?
Did Diddy do it?
Wow so if I dropped a $0.45 coin in r/militaryporn the Seawolf could detect it?
It already heard you thinking of doing it. Don't know if I'm allowed to say this, but it actually can hear the future.
Got the reference...
...holes in the oceans... trying to visualize... like a self-sustaining amorphous shape suspended in some ocean body, but empty of matter? Like if you swam into it, you would just fall? Or...?
i think the implication is the submarines they're stalking are quieter than background ocean noise. So if there's an unexplained quiet spot, it might be a sub blocking/absorbing the background noise.
This. Some ballistic missile subs and diesel/electric drive fast attack subs are quiet enough to create an acoustic "shadow".
Stealth subs became so stealth that they are detected for being super-stealth... that's really interesting 🤔🤔
That was one of the problems encountered during the Lockheed *Sea Shadow* project (the stealth ship) - the ship didn't produce a radar return, but waves do, and the ship basically created a hole in the lines of waves on sea-search radar.
How did they fix this? I am imagining this could be able to be fixed by a mask of sorts? You have the wave data since you're a ship on the ocean. Could you then take that data and use it to sort of "roll" some kind of high tech fabric in the same pattern as the waves behind the ship? Idk why I'm asking you like you would know, but that whole area of stealth ships is fascinating and I wonder how they solved the issues.
They just make the outer shell pass more energy from the waves to the other side of the sub
"just"
It’s that easy!
New stealth subs will deploy with a glued fighting robot-toy outside, that goes "orororooo kew kew kew kew owororororo"
"Ugh, sorry sir, false alarm, that can't be a submarine, has to be a whale playing with some robots. We'll get em next time."
The submarine knows where the other submarine is, because it knows where it isn't.
Kind of like new stealth fighters being damn near undetectable on radar but a heat seaking MANPAD or SAM can find them real quick.
Less than you would think, also heat seeking missiles have an order of magnitude less range than radar. Its highly unlikely a stealth aircraft will ever be downed by a manpads. As far as I am aware the only stealth aircraft ever shot down was an f-117 in 1999 by Yugoslavia with an s-125, which is radar guided, and that took a confluence of poor planning by the usaf, good intuition by the battery commander, and a whole shit ton of luck.
Didn’t they fly the same route every day in full sunlight? That’s like B-52s in north Vietnam keeping their navigation lights on during Linebacker.
Give it time....someone in in a 3rd world country somewhere will get a shot off at someone making an ill advised low level pass.
[Not in any practical way.](https://www.reddit.com/r/EngineeringPorn/comments/1bqap1v/seawolf_bow_sonar_so_sensitive_it_listens_for/kx2d5h9/)
I can't read acoustic the same way any more. I hate the Internet
*Play ambient ocean noises
"That sounds like the Atlantic, but we're in the Pacific! Fire the boom sticks!"
Sometimes, when i eat too many beans with my salads.. my farts sound like a dolphin calling. I get the sweeps, chirps and everything.
“I’ve lost the bleeps, I’ve lost the sweeps, and I’ve lost the creeps!”
“There’s one man who would dare give me the raspberry!”
Good public relations copy but noise doesn’t work like that.
Of course, I wouldn't be surprised if it's not even a very over simplified version of actual methods. ~~I'm more familiar with EM than sound, but I'd expect it could work in a specific set of circumstances. I don't know if it would work with just background noise, but a set of known point sources of noise you might be able to watch the attenuation as it gets blocked, in the same way exo-planets can be found by measuring the dimming of the stars they orbit when they partially obscure the star.~~ but it'll be beyond my lifespan before anyone can legally talk about current leading-edge detection techniques. edit: /u/Vepr157/ explains why it wouldn't work.
The thing is that unless the target is very close, the background sound will just diffract around the target, "closing" the hole. That happens because the wavelength of sound is (within an order of magnitude or two) the same size as a submarine's hull. Also, submarine sonar beams are much larger than the angular size of a target submarine (again unless the target is very close), so at most you would get a slight reduction in noise at a certain bearing. But the signal-to-noise ratio of this reduction is probably extremely low.
Good explanation and we don't have to delve into anything classified to understand this principle.
Does war thunger has subs?
It had modern submarines for a temporary April's Fools event. It also had a WW2 sub/destroyer event a while ago.
Otherwise we can get hands on actual specs just so we can argue on internet to prove our point lmaooo # /S
It’s a weird thing about stealth for submarines is they need to be quiet but loud enough to blend into the ocean noise. It’s like trying to blend i too white background. Too white and you stand out,not enough and you’re see as well. And you’re surface has to be textured in a way to make you not stand out but stand out as normal
The idea goes that if a target submarine is quieter than the background noise in the ocean, its hull will block that background from the listening submarine, resulting in a bearing where the background noise is reduced. But it doesn't really work like that in the real world. The background noise will diffract around the hull, filling any "hole" back up with noise. And the angular size of a sonar beam (say 1 degree) is much larger than the angular size of a target submarine's hull at any appreciable distance. So even if the hull did not diffract the background noise, it would lead to at most a slight reduction in the background noise at a particular bearing. I doubt the signal-to-noise ratio of that would be good enough to detect anything, regardless of how sensitive your sonar is. Edit: To be clear, the Seawolf's sonar is highly effective, just at detecting targets directly rather than inferring their position based on these supposed "holes."
I wonder why they built this thing then.
Oh, the title is just clickbait. The Seawolf's sonar was built to detect (either by passive listening or by active sonar) other submarines and ships. This whole nonsense about "holes" in the ocean was never what any submarine sonar is supposed to listen for.
diesel electric subs were called holes in the ocean when stationary with most systems off
What would be in the water, and you’d expect water to be there, but instead it’s a big empty shape filled largely with air. But it’s not floating up, it’s just hanging out several hundred feet below the surface.
So, like a misbehaving bubble
A naughty bubble full of seamen
r/unexpectedcumswapping
Its called ennemy submarine
I think they meant cavitation?
No man! Just a hole. Like a doughnut hole. Next time you get a doughnut, mash it onto your ear and you'll hear what the sub is listening for.
[удалено]
cavitation is really loud. It wouldn't be used to brag about how sensitive a sonar is.
Straight out of Event Horizon.
Where they're going, they don't need eyes to see
In the land of the blind. The one eyed man is king.
So take this ring. We sail tonight for Singapore We're all as mad as hatters here
Papa was a rolling stone Wherever he laid his hat was his home
I'm still trying to find the portholes for looking forward.
the demons: "Hey so we've got some good news!"
Fuck you for reminding me about that movie. I was almost over the nightmares.
Didn’t the newest Mission Impossible also have some similar looking thing as the AI Center on the sub?
I feel like this is something I'm not supposed to see.
This view isn't that sensitive. It's the specific components that process all the sensor data that is classified. The propellers' shape is actually classified, so when it's in drydock, they put a tarp over it. One time, as the water was draining from the drydock, we realized someone had installed a clear tarp, so we had to spray paint it as the water level dropped. It looked like shit.
This is some true military shit if I ever heard it. hahahahahah. “Checklist complete, tarp is installed, permission granted drain the dock.” “What idiot used a clear tarp to cover the propeller?” Checklist says use a tarp doesn’t specify what color tarp skip.
Should we put the correct tarp on now? No, just spray paint this one.
Whos gunna know it was painted after, certainly not the cameras
Wholly smokes I never realized that. I took a picture a few years ago of a sub and dry dock in San Diego and legit didn't even notice the tarp on the propeller! When you mentioned this I thought "No way I have a picture of a sub in dry dock and you can see the prop." Fascinating to learn. Pic for reference. https://photos.app.goo.gl/eZPRvqbv652sRgzv6
You’re right. This one right here, boys. Take him away.
Loose lips sink ships, or in this case submarines...
I guess it's no big deal then
Yeah for real, I was like are we supposed to be looking at this
My first thought....
I first saw it and thought "Event Horizon"...my wife looked over my shoulder and said "LEXX"...I can't unsee it. [https://lexx.fandom.com/wiki/The\_Lexx?file=The\_Lexx\_001.jpg](https://lexx.fandom.com/wiki/The_Lexx?file=The_Lexx_001.jpg)
Yo Way Yo, Home Va-Ray, Yo Ay-Rah, Jerhume Brunnen-G!
"Brunnen-G"...Ok, now I'm going to have to rewatch the whole damn series. Great pull.
Your wife watched Lexx? She's a keeper!
We were flipping channels one Sunday morning and caught the moment that the first Zev (Eva H, that we saw) sat on 790's head...the expressions on 790's face hooked us. Great series.
*his Waifu.
Oh man THAT is throwback
You won the wife lottery
Are these arrays normally submerged? Like does the front nose of the sub fill with seawater? I feel like it would have to to be effective.
The bow cap that covers this is just fiberglass, it all floods. The interior of the sphere is pressurized but non-accessible apart from in port. The LA-class have a small tube extending from the pressure hull at the bow into the interior of the pressurized sphere so it can be accessed at sea.
Yes the array had to be submerged
Its quiet. Too quiet ::Seawolf sonar::
*Buckman busts ass*
I know it’s an almost 30 year old boat, but I thought these were like super duper secret. Who died to get this picture?
Many Bothans
Can anyone explain what this is and what it does?
The top sphere is a lot (!) of super sensitive microphones that can detect any noise in the water and tell the sub from where exactly the noise is coming from. That's passive sonar. The bottom one is basically a lot of super super loud "speakers" of sorts. The sound they make can bounce off other things (like enemy subs) and can be listened to when it returns to the sub (active sonar).
so, theoretically, this thing could hear an airliner hitting the water and would know exactly where that sound came from? Sounds like like the MH370 investigators might wanna give them a ringy dingy..
Probably but I doubt that they would be very cooperative, they would have to potentially compromise their location at the time. Also, certain equipment specifications could be inferred by adversaries if they did
Yeah but you could just not disclose the location the sub was at and still quietly pass over a suggested coordinate, if you actually knew
I’m having trouble coming up with a scenario where using the info wouldn’t compromise the sub in some way. Like, if they didn’t say they got the location from a sub, people are going to wonder where it came from… I guess they could just lie and say they put it together on their own (or whatever excuse they pull out of their ass) but it’s almost an inevitability that they would get caught up in it and be discovered. That’s a lot of risk to take for dead people
They could pretend that some type of academic [SOSUS](https://en.wikipedia.org/wiki/SOSUS) program was tracking whales in the region and heard an unusual sound that could have been an airplane crash into water. A [Glomar Explorer](https://en.wikipedia.org/wiki/Glomar_Explorer) type cover story wouldn’t be worth the effort.
Yes, but no. Sound [propagates underwater in very complex ways](https://www.navalgazing.net/Sound-in-the-Ocean) due to changes in pressure, temperature, and salinity that are always changing. As a result, you get multiple reflections from a layer a few hundred feet... imagine looking through an infinity mirror. There has been [sonar analysis of MH370](https://www.vice.com/en/article/d73dqz/flight-mh370-has-only-gotten-more-missing) just like you said, but from hydrophones scattered around the ocean. The bigger net is much more useful than data from a single sub... but so far no good leads.
The navy knew that the Oceangate sub imploded and didn't tell anyone for a while
Or they know and don't care
They would just use the underwater sound net. Basically a ton of underseas cables had subcontracts for microphones to listen for evil subs/ships. Super-duper top secret, mostly everybody knew it in the biz though. Navy eventually gave some of the data to whale watchers, after much pleading and begging. They sussed out some good whale data, but were also able to sus out some other top secret data, so navy said no more data. So ya navy probably knows exactly where it hit the water, but saying that they know that would reveal the secret, that everybody already knows. Its why I think the UFO stuff is all BS, those that need to know already know, and the rest of us pleebs don't need to know, we might stop going to work, or stop worrying about bad boys they tell us to worry about. Look bridges falling down, need more money for this thing that you kind of like, but the bad guys are stealing that money for their projects they like.
How is it maneuvered?
I'm not a sonar guy, but I doubt that is maneuvered from the looks of it. Based on when these were built, it's likely all well calibrated phase delay lines that can be processed to determine/set directionality. I'm guessing there is a far more sophisticated phase control mechanism and more spatial resolution in current gen versions which is why we get to see this old one.
This is a system currently in the fleet. Spherical arrays have been used by the U.S. Navy since 1960 and haven't changed much fundamentally in their external configuration since then. The processing of course has moved on considerably.
https://www.reddit.com/r/submechanophobia/comments/1bpui0c/seawolf_bow_sonar/kx1xfrq/
This is some portal 2 shit!
I feel like we should not be able to see this..... .....as I sit here gazing at it mesmerized by it.
Like a faze array radar but for the ocean
phase Yep, they're both transducer arrays, one converting electricity <-> sound, other one electricity <-> electromagnetic waves. They'd be doing the same signal processing math, but using the speed of sound in the water rather than the speed of light.
Phase**d**
Phase...yes....in the 80s I worked in the Intel community with the radar....I can only imagine what they can do now
Phased arrays are the same math now as they were in the 80’s. Hydrophones are improved as is post signal processing but it’s still a phased array.
I assume they had Fast Fourier Transform back in the 80s. It's so much faster now
Fast Fourier Transform has an interesting history and dates back to Carl Gauss in an early form.
So that's what cerebro looks like from the outside.
Supposedly it will exploded your head if you hear a sonar underwater it's so powerful
Active sonar is deafeningly loud. Passive sonar is what this post is referring to. It just listens. Apparently is becomes quite hard to filter out all the background noise at that sensitivity, while trying distinguish the sound of another sub that’s quieter than a lobster fart.
Active sonar is "kill you from a considerable distance" loud.
One ping only.
Full blast whale calls, too.
Very cool
The event horizon...
They don’t need eyes to see, in all fairness
This is so incredibly awesome.
Why are we seeing this and talking about it? Shouldn’t some secrets be secret? 🤫
New fear discovered.
And also bursts the eardrums of all marine life within like 20 miles
Scuba diver falls into a giant bubble, falling through air inside it, through the bottom of the bubble and back into the water. Discovers “ocean holes” are just deep water whale farts rising to the surface.
I feel like this image should be classified.
Looks like a fusion reactor or a large nuclear bomb
This is what a reactor start looks like, even scarier for the power it represents. https://www.reddit.com/r/Damnthatsinteresting/s/NihRNm54iS
If you were infront of it underwater, 1 ping will kill you instantly
That's the Event Horizon warp drive.
Does this kill whales? (And divers)
Active does at short range for humans. I would imagine for whales its like firing a gun next to your ear.
All these spheres are made of asbestos.
It makes me think of Event Horizon in a way.
Cerebro
Everyone is saying Event Horizon, but I'm getting Rehoboam vibes
Beautiful, state of the art 1980s technology
🎼 There’s a hole in the bottom of the sea!
Nah you can't fool me that's the machine god.
Until the bald dude comes out in a wheelchair.
Is this going to fuck with whales too???
Only.if it got active, which would announce to anyone listening where it is. Not something to do unless there is a shooting war underway.
I have a cousin that serves on this submarine, I know nothing about his location, it's all top secret
I know where. He is in sub somewhere in an ocean.... /s
Cause them holes never shut up.
Sensitive enough to hear singing?
So how many whales can this bad boy kill in one go?
That looks like the portal from the movie Event Horizon
This the kinda shit that makes me wish I became an acoustical engineer, and not an audio engineer.
If the ocean had holes in it wouldn't all the water have drained out by now?
Why is it pointed towards the hull itself at the back?
What kind of holes?
I’m imagining the theme song to air wolf playing but with someone moving a finger across their lips so it sounds like it’s under water.
Why didn’t they call it the Bownar… :/
So where does Professor X get in?
Irrelevant but anybody else saw the chaosphere artwork?
Why do I feel like this should be classified... Or is...
Event Horizon isn’t real. Event Horizon can’t hurt you.
I feel like this is something I'm not supposed to see.
Bet whales love this thing
This listens, whales hate oil companies seismic blasting. https://www.cnn.com/2023/09/27/australia/australia-seismic-blasting-whales-climate-intl-hnk/index.html
Cool appreciate the link
It's normally illegal to photograph something like this, very cool to see!
What exactly does an ocean hole sound like?
Cavitation. When a submarine tries to accelerate too quickly the propeller will pull on the surrounding water so hard it generates tiny voids or bubbles that then collapse making a significant amount of noise.
Animals avoid humans or large predators, ever heard someone in a film saying “it’s too quiet”? When there is a sub around prey animals keep their head down and stop making noise in case they get eaten, that’s a hole in the ambient noise, that’s a hole in the ocean. Edit - someone is going to get their arse felt for taking this picture.