Why wouldn't this work?

it would work, but the air would want to go up to the surface. it'd require you to be constantly overhead lat pulling several hundred pounds while walking and talking normally

>>212607383
Lat pulling won’t work unless you can attach your body to the ocean floor because the force pulling your body up will be higher than your underwater mass pulling you down

>>212607305 (OP)
Because it's impossible to hold that air bubble under the water because of the pressure from the water

>>212607305 (OP)
Because you need carbon fiber to make it work

>>212607492
kek

>>212607492
is that real

>>212607477
not if the two of them together weigh 360 pounds and the air weighs 250 or 300

>>212607477
Ok then how tf do submarines stay under water if they are filled with air and not attached to the bottom?

>>212607687
they have ballast

>nonwhite people learn basic physics: the thread

>>212607696
https://www.amazon.com/dp/B087WPGXK9

>>212607305 (OP)
All the disinformation ITT trying to convince you it's impossible is from military shills who don't want other countries to know it's this easy to make a submarine.

>>212607780
is this some bot that replies with amazon links to posts containing relevant key words

>>212607305 (OP)
The only issue I have with this scene is that there wouldn't be much air and they'd run out of oxygen pretty quickly. I think the scene would have been improved, both scientifically and comedically, if Jack Sparrow was carefully holding a small plant in one hand underneath the hull to recycle the CO2 into oxygen.

why doesn't water shoot off into space?

>>212607687
They don't. Submarines aren't a thing IRL.

Because the buoyancy of the boat would far exceed the weight of two people. Even if they were heavy enough to weigh it down, it would still be too buoyant for human arms to to hold down without breaking.

sosus warning nets would have detected them rendering the deception useless

>>212607671
you forgot the weight of the boat itself. but anyway that much air would easily weigh thousands of pounds, there's no way they could hold it down.

>>212607305 (OP)
The movie is about ghost pirates. It was probably ghosts holding the boat down.

what if they drank a ton of water as they were setting this up?

water weight + body weight + boat weight < - weight of water - buoyancy

>>212607924
You fail to comprehend how light air is.

>>212607850
the amount of air trapped there would be enough for like two hours of breathing

it's roughly 50 cubic feet of air.

>>212607958
i just turned on my 'jewellery' scales. nothing on them.
0.03g. i don't need to comprehend anything.

>>212607991
Now go weigh air on the bottom of a body of water.

>>212607958
it's not about the weight of the air, it's the weight of the water displaced. They're displacing 50 cubic feet of water, that's over 5000 pounds.

they never would have even got the boat underwater

>>212608020
all right, brb.

>eat a bunch of osmium pellets
>sink to the bottom
checkmate buoyancy niggers

>>212608100
No stupid, you'd have to replace your skeleton with osmium to even have a chance of your arms having the tensile strength to keep the boat down.

>>212607305 (OP)
It literally works IRL.

>>212607305 (OP)
we literally did this at the lake as kids. we were real. you aren't

>>212608213
same actually

didn't they test this on mythbusters and it worked? i don't remember now

>>212608273
mythbusters pfft you fucking little bitch

you turn the canoe over. you let enough air out that you can sink it by pulling down

>>212608273
they tested it and it did not work

>>212607305 (OP)
You would need to be very strong to keep it level and would not be able to do it without at least three people tom keep it from tilting.

>>212608330
it doesn't work for the same reason that boats float

>>212608273
It worked flawlessly, yeah. Never understood the trolls pretending this is some incredible feat of strength, like, did you ever play with toys in the bathtub? Not that hard to pull them underwater lol

>>212608400

even with no air underneath it, wood is buoyant. additionally, the human body is essentially neutrally buoyant so where would the downward force holding it down be coming from? this is like 6th grade physics.

>>212608525
>the human body is essentially neutrally buoyant so where would the downward force holding it down be coming from?
Bro just say you don't go to the gym lmao

>>212608432
I remember when trolling was a art. Faggot zoomers.

>>212608558
haha nice typo, queerbait.

it's called TRAWLING. we're talking about boats, here.

>>212608558
kek srs

If you put weights on your legs heavy enough to allow you to sink to the bottom, the force from the bubble trapped beneath the boat would rip your arms out of your sockets. You would need steel cables attached from the ankle weights to the boat to hold it down without relying on your puny human muscles

>>212608806
Complete bullshit.

>>212607305 (OP)
Normally it wouldn't work if the water was shallow, but because they are so deep down the weight of all the water above overwhelms the bouyancy of the boat, making it easy to hold down.

>>212607305 (OP)
That thing has a buoyancy that can lift up like 2000+ lbs when tested on mythbusters.

>>212608877
The buoyancy would produce like a ton of pull. If the boat was attached to their hands, it would sooner rip them in half than allow them to sink to the bottom. The flooded half of the titanic weighing infinitely more couldn't bring the half that was still floating with it. Buoyancy is a very powerful force. Try to shove an exercise ball underwater sometime.

>>212608968
I'm a math major, and what you're spouting is nonsense parroted by dimwits. You can easily hold a boat underwater like in the movie. I'd give you the equations, but they'd be lost on you.

>>212608273
Yeah, they tried it. It failed miserably. They attached over a thousand pounds of weight and couldn't keep the damn thing down.

>>212609012
Trolling used to be a art, you know

>>212608806
>>212608968
maybe stop reading so many books and go lift you nerd

>>212607850
Lol

>>212607687
They're made of metal not wood, and they have big tanks they fill with water to stay submerged.

>>212607850
>The only issue I have with this scene is that there wouldn't be much air
there is a lot of air and it's being compressed.
you don't just consume all the oxygen in every single breath you take in, most of what you exhale is oxygen, they'd be fine for as long as the scene takes.

>>212607850
true

>>212607687
>he thinks submarines are real

Get a load of this goy

>>212607657
I'm afraid so, my friend

>>212609413
>and they have big tanks they fill with water to stay submerged.
Exactly. So drink a lot of water before you pull this stunt and it's easy as pie. Did it when I was younger with my brother.

>ITT: people failing to understand how pressure works

>>212607687
God I fucking wish submarines were real
Imagine, some Russian asshole can park a magical underwater boat off the coast of North Carolina and nuke every city on the Eastern seaboard
Yeah, right

>>212609919

>>212607305 (OP)
me and the boys used to do this all thr time one summer. we were at a boys camp and snuck across to the girls camp undetected
god that primo puss we smashed together makes me cry to this day
felt like real pirates, kept talking like ones after that

>>212607305 (OP)
buoyancy

If we generously assume Jack & Will plus gear/clothes weigh 100kg each that means they can pull down about 7 cubic feet of trapped air with their own bodyweight.

7 cubic feet of air is about 1.5 cubic feet of oxygen, or about 40 litres.
With most people consuming (as in breathing in and NOT breathing out) maybe 0.5 litres of oxygen per minute under moderate activity, that means Will & Jack would have about 40 minutes of time before death.
In reality would probably be passing out at around the 20 minute mark. However that does seem like more than enough time to achieve their goal.

The plan is physically possible but its representation is off. There should be a much, much smaller air pocket in that boat.

>>212607305 (OP)
It would, but you'd need around 750kg of ballast added to it to counter the buoyancy effect of the water displaced

>>212607477
>the force pulling your body up will be higher than your underwater mass pulling you down
depends how deep you are, at 50 ft down, the human body isn't buoyant anymore and you start to sink. so if they were 50 ft deep lat pulling would work

>>212607305 (OP)
the build up of toxic mustard gas leaking from the boats paint

>>212607780
>>212607829
I mean he's not wrong, if you tied the right amount of weight to the boat you could get it to be neutrally buoyant

>>212607305 (OP)
Water pressure would turn them into meat paste.

I think they had an episode on this

>>212613843
Literally on YouTube.

https://www.youtube.com/watch?v=6dNyqJuFwXU

>>212607305 (OP)
>air has upward pull of multiple hundreds of pounds
>two men not even 250lbs together can hold it down

rrrrrright

>>212613885
BUSTED

>>212613885
>>212613843
Put a girl in the boat and see if the raping blob could hold it under then, or if he'd be at full mast.

>>212607305 (OP)
Because of heckin science

>>212607850
this is the best i could do without booting up stable diffusion

how did they film it if it didn't work?

>>212607862
>>212609919
>>212610228

lol, is this a joke or is there seriously a new schizo conspiracy theory suggesting submarines aren't real??

I've been on a submarine before. They are real.