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- เผยแพร่เมื่อ 16 พ.ย. 2024
- #shorts #scuba #pressure #danger
Don’t hold your breath underwater, air expand when you go up and your lungs can literally explode for the excess of gas in them.Take a look at what happens to this bottle after we fill it up with air at 60 feet deep.
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Instructor: “Don’t hold your breath”
Me: breaths in water , and drowns
This comment needs more likes 😂
I was just thinking this like huh
Brooooo !! 💀💀😂😂😂😂
Holding your breath while scuba diving can or will be a death sentence.
☠️
"Don't hold your breath while dying"
Got it
😂😂😂
Exactly the comment I heard from.him too lolol
😂😂😂😂 i love youtube comments
While scuba diving dipshit
😂😂😂
Perfect video to explain barotrauma to my students.
@@medic2807 awesome
@@BeHo-ci8zw Bro. What are you talking about? 😂😂😂 It's basic physics!😂😂😂😂
Some people are just bored keyboard warriors who don’t got a job and have nothing to do with they life so they comment and be an annoyance in the comments
Wow ...
@@BeHo-ci8zwd😊
i remember diving to the bottom of 10-12ft pools as a kid and feeling the massive pressure on my head. good times
Wait I did the same so now that I'm in my 40s talk to me like I'm still 10 yrs old , so when I jump in 8ft don't hold my breath but instead blow bubbles 🤔🤔serious question ?
I once farted at 60ft depth and when the bubble hit the surface it was very violent explosion indeed. Never hold your breath or fart while scubadiving
Be careful man you could start a tsunami
i would be scared my butthole would fill up with water D:
How were you back at the surface to know...?
@@robert-king-d7t i googled about the subject getting a Padi diving certification
Don't tell me how to live my life.
That's an interesting demonstration but no bs, my favorite part of this video is where he makes sure he retrieves the cap.
Awesome
Same.
And mine! 😊 Are we sad? 😂
You're amazed he retrieved the plastic cap?
@@bradnobl Have you seen the number of litterbugs at the beach? It's good to see someone being responsible.
For those who wonder why it doesnt explode. Pet bottles can handle about 8-12 bar(depending on the shape) of pressure.
Cierto!!
Tf is a pet bottle?
@@ItsCrouton pet is the name for a type of plastic. It has a higher recycleblity than most plastic. It just for pretty much every drinkable container like cola/water.
Does this hurt the bottle?
@@ItsCrouton polyethylene, it's basically every regular "thin" plastic bottle like this one
Hold your breath while ascending and the air gets forced back into your bloodstream. Causes strokes and pulmonary embolism. Also heart attack or cardiac arrest.
One breath breathed at depth can be enough to take you the whole way up if no compression stops are needed. Which is unlikely.
it might actually cause oversaturation and thus bubbles in your blood, clogging your arteries
Not true
@@ethanbrown7123 Its true. That's the reason why divers must decompress. If you go down to 24 meters for 30 minutes, you must stop at 3m for 4 minutes.
@@wernerderchampdecompression stops are nothing to do with holding your breath. Please stop posting nonsense.
Hold your breath while ascending even a few feet and you've just split your lungs open. It's nothing to do with air forced into you *blood*.
You're thinking about nitrogen already absorbed into your blood if you come up too fast.
The pressure in the bottle doesn't increase. The pressure of the atmosphere around the bottle decreases.
Yes, but the practical ramifications are the same. If you pressurized the bottle by twisting it, heating it, or pumping more air in, it would result in the exact same outcome when the lid is loosened.
Of course the pressure in the bottle increases , that's why it's pressurized at the surface .
This broke my brain
Bingo
@@Gordon_L this obviously works with the plastic bottle because the container can expand and contract. The air bottle on the other hand does not do that, so how is the pressure supposed to go up inside if there's no force acting on it since the bottle is taking all of it? What if I create a vacuum in a sealed steel cylinder and take it to the bottom of the ocean? Does it become supervacuum?
except that if youre free diving the air you take from the surface gets compressed then expands back to normal. scuba diving is different
Absolutely we are not talking about Freediving, but then you have to be careful not to black out.
Yep that’s why that lady going for the world record a few years ago that died free diving was not able to get a breath from one of the rescue divers scuba because she would have definitely died that way, so she had to risk going up and holding her breath and unfortunately drowned anyways.
@Jon-fh6nf 2002? That's more than a few years ago... or there's many more deaths from going for freediving records and I just found one.
@@Jon-fh6nf Wait, why couldn't she take air from the divers? What would be the difference if she exhaled her air & took in new air? She would just have to ascend slowly with the divers & trading breaths as she went back up. Or she could blow the air out continously like they teach submariners to do when escaping a sinking sub.
False
Love how he shows he recovered the cap to avoid backlash
edit: thanks backlash people for your feedback XD
My exact thoughts. This is not his first social media rodeo.
Good, already too much plastic in our testes... look it up.
@@thebrowns5337lmao they were making fun of people like you.
@@thebrowns5337I throw my car batteries in the water.
@@ImARealHumanPersonif being made fun of means one less piece of litter in our oceans, sign me up too
Remind me to never to put a turd into one of those bottles when I'm diving
Don't hold breath just drink the ocean fam.
He’s talking about scuba diving, you can hold your breath if you do free diving
Dangerous for humans also is N2 which also gets into the blood but does no chemical reaction whatsoever with the body in its gas form.
When you dive 20 meters down, and breathe normal air (or the gas thats in the scuba tanks), the amount of N2 increases 3 fold, because the pressure is also 3 times higher, thus the concentration of N2 is 3 times as high in the blood, which per se isnt really the problem. The problem arises when you dive up too quickly.
If you then instantly dive up, the N2 will just gas out, because the pressure decreases back to the normal partial pressure of around 791.25 hPA for N2.
--> decompression sickness
fizzy blood.
I thought decompression sickness was when n2 gas in your blood starts to crystallize out as the pressure drops
@@tinkthefoxylilmiss6801 if i remember correctly its nitrogen bubbles forming and blocking bloodflow.
@@InfernalNull Scuba diver here: it's bubbles, not crystals. I never heard anything about crystals. And if you remove the N2 and go deep enough, the extra O2 will kill you even faster.
@@darrennew8211 i too am a (recently certified open water) scuba diver lmao
“This bottr uh urrr”
As a Londoner I respect the way he said that. I prefer a bo'le of wa'ah myself.
@@FRAAANKYSUUUPERwhats that?
@@T-Vexed bottle of water
@@FRAAANKYSUUUPER never heard of it.
@@T-Vexed just look up British bottle of water
4 hours of max playing minecraft! HELL YEA!!!
also happy birthday max😊🎉
🤙🤙🤙😎💀
Don’t hold your breath during explosions either, same result
Can you explain what kind of explosions?
@@June79809 concussive, my homie was in the military and said the pressure from an big explosion can tear your lungs if you don’t have your airway open
@@hajimane it isnt holding your breath that is the issue, the issue is how full your lungs are with air already. You are supposed to breathe shallow slow breaths to reduce the air in your lungs.
@@June79809we were told to exhale when it went off, but its so your lungs dont explode. I was like 15 ft away from 20lbs of c4 go off. Shi will def smack you pretty hard. I had range safety hide behind me when it went off. Dude was like an E-7 or E-8 and here i am a E-3 not ever being that close to c4 before yet.
You aren't going to know when the concussion occurs until it's too late
Thank you for retrieving the cap 🫡
Always
That was more impressive than the air expanding
Welcome, earth nazi
TH-camr: Don’t hold your breath underwater
Me: Guess I’ll drown then
He’s specifically talking to people who are scuba diving, as ascending to the surface with a breath full of air you took further down can seriously damage your body when the air expands due to the drop in water pressure. This doesn’t apply to regular swimmers who are just holding their breath, as the amount of air in your lungs is the same as it is at the surface. Scuba regulators have to increase the pressure and density of the air at lower depths in order to counter act water pressure.
Cheers@@andrewparker318
Yes but he doesn't explain it very well...
@@seangilchrest6091its demonstrating decrompession sickness and what would happen to ur lungs if u took a breath of compressed air at a deep depth and swam straight to the surface.
@@pigeonforlife204decompression sickness is something totally different. What he is explaining is pulmonary barotrauma
Fun fact: you can like comments by double tapping them, but if you triple tap them you can also reply
Even funnier fact: you can reply to a comment with uneven number of taps, or like it with even taps on it.
You deserve the like and my comment!! Thanks bro!
YOOOOOO 😮
I never knew that lol. Just tried it and it works. Thanks Rebelman.
Thank you for making sure to grab the cap of your demonstration bottle , and including where you show it to the camera
Definitely wasn't planning that😅
He definitely added to the pile of junk in the ocean
Cringe
Because of this comment and only because of this comment, I will be throwing a single bottle cap into the ocean that I would not have thrown before.
Youre welcome earth nazi
I don’t go diving, it’s that simple
Exactly 😂
🇮🇩 Me too. Even near ocean. Except vacation. I mostly stay in the city, where I live and it's far away from ocean.
It is the closest thing to a real other world as space promises here on this planet.
I recommend it
Lol😂
Technically the air isn't expanding but the pressure asserted on the bottle in the bottom is reduced from the change in external pressure. The volume of the bottle increases to its physical limits, volume the air inside will always stay the same as long as it's sealed.
Well if you are using are compressed at depth, would it expand when you go up?
Very big change of ATM?
@justscuba-e7b Air in bottle doesn't change. The outside air pressure decreases as one rises to the surface. End result, the inside air is now at a greater DIFFERENTIAL.
So what you're saying is the air is expanding
@edep3970
no air doesn't expand, the void expands, and the air fills the void.
@InvestorSpeed Which means to say the air expands. Because the same amount of air now takes up more volume.
Wrong: you don’t want to hold your breath while “ASCENDING” because the air expands when you rise. You’re fine to hold your breath while you dive as the air compressors.😉
He said air expands when you ascend. What do you think was wrong with the video?
Thank you for the clarification. I'm swimming this weekend and guy guy almost had me killed.
@@SamuraiBlaqkif you’re not breathing compressed air from a scuba tank then you don’t need to worry about any of it. Freedivers will descend hundreds of feet and back to the surface all under 20 minutes with the same breath of air.
I erm… I think they… were joking..?
Thats... what he said... 😂
Not a clear explanation of why it happens. At 60 ft, your air regulator matches the water pressure at that depth of a little less than double the air pressure at surface. As you go up, the water pressure in the water goes down to 1 atmosphere at surface while the bottle pressure stays the same. The bottle pressure doesn't compound it staysthe same. It wants to expand because the differential pressure between the water and bottle increases.
Cry
This is a less clear explanation…
You’re opening sentence had me confused, but it was clear to me by the end you’re slow
Had to read twice but I got you
He explained it so little kids can understand.
You’re explanation is trying to reach your word count
Must’ve been terrifying for the first person who found out not to do that
Yeah, they probably would have been watching their friend cough up blood, then struggle to breathe for a couple of minutes before eventually succumbing.
wow! it's my video! thanks for copying it!
Yours is exceptional!! You scuba too ?
if you come to Maui we can do something cool, I have a few boats would be awesome, love your stuff.
I just want to point out the errr isn't really "expanding" but the pressure on the *outside* of the bottle is decreasing. It's the same errr you breathed into the bottle at depth, but under a lot less weight, so it appears that the pressure inside is increasing.
The err is literally expanding because its compressed while filling in the tank then diver breath that err
It is actually compressing. Therefore you can put more oxygen at dept than you could at sea level. So, as you ascend, the oxygen expands. That is why you ascend slowly, so you let your body release oxygen.
It's the same amount of air, yes, but as you release pressure the volume of air increases greatly. This is expansion. Same mass, different volume.
This could be the start of the war between scuba divers and free divers
He's clearly a scuba diver not a free diver. He's talking about issues related to his style of diving. He hasn't mentioned anything about free diving so not sure how hard to understand that is?!
Exactly. I free dive when I spearfish and never have issues because I know my limitations and am very careful around reefs.
😂
Thank you for grabbing the cap :)
Welcome, earth nazi
For some reason I feel an urge to visit Costco
Kirkland original 😂
Me- “please tell me they didn’t leave the plastic bottle in the ocean”
Lmao good luck finding the cap that he just launched 100ft into the air
@@soglod4572he found he cap and picked it up. watch the whole video.
Lands right next to him a second later. He also picks it up and shows it to the camera. @@soglod4572
Scrolled too far to see this
@@JayAllDay07130 watch the full video people. He picks up the bottle cap and literally shows it to the camera.
Fun fact you can actually replicate this above water. Get an empty plastic water bottle make sure the lids on tight and there is no pressure inside then begin to twist it in the middle, this will replicate the buildup of pressure from ocean to surface, when you undo the cap it will pop just like hat due to he pressure buildup.
You can get a similar effect just driving up or down a mountain.
“This is why you don’t hold your breath underwater”
Sir, I have 2 options. Don’t breathe, or breathe.
"Don't hold ur breath underwater"
Freedivers say "Hold my beer." 😁
😂😂😂😂
Don’t hold your breath when diving just breath in all the lovely water and become a mermaid.
It seems that those fish are about to take their physics exam..
“cRrAAaZyy” 😂
Bother - bottle*
"dont hold your breath while dying"
"okay"
😂😂
Just got resuscitated. You want to hold your breath folks. Breathing in water kills you apparently. They call it drowning
this is for scuba diving not for free diving
So basically, the bubbles you blew into the bottle from 60 ft where pushed together very densely
Never forget that shit can happen in only a few feet of water too, gave myself barotrauma replacing drain covers in a swimming pool
@@yourhero33 yes most dangerous depth is the first 33 feet
He did say never hold your breath while diving.. that doesn't vary with depth that's all depths..
Free diving is completely different. This is only for scuba. @waxprime729
Boy I'm glad I never held my breath underwater when i would go to the bottom of the deep end 15ft.. I don't know why i did this but I always let some air out my nose or mouth.. it was just a reflex to do so.. I never knew about this as a kid.. we would try to hold our breath as long as we could to see who would win or get to the bottom.. but I never held my breath i just let it out real slow every few seconds
@@Mike-rv5bc This only applies with Scuba tank air while breathing it underwater.. If you free dive with just the air you breathe on the surface it doesn’t matter how deep you go you can hold your breath as you go up and reach the surface.
Don’t hold your breath? Who do you think I am, Arthur Curry?
😂😂
I knew a guy that expelled water from injured knee by diving
10,000 words when only 3 sentences were needed.
well tell us what sentences then
Now do this again and jsu let the bottle go from the bottom and have someone record it on the surface to see how high it will shoot out
That’s a great idea !
TEACHER IS SMART N DEMO IS GENIUS
Thanks
The explanation you give for the bottle boom at the end is not correct. You breathed air into the bottle in a pressurized environment balancing the internal forces with the external (fluid pressure of the water at your depth) then brought it up to a depressurized one. The forces of the air in the bottle are now greater than the fluid pressure externally acting on the bottle, bottle go boom. It’s not because air expands or contracts. The temperature change is too minuscule for an expansion of that magnitude to occur. The pressure is the main cause.
Edit: refer to hydrostatic forces in cengels fluid mechanics textbook(it’s a damn good book btw, helped me pass fluids in my 2nd year mech Eng)
The plastic bottle isn't a rigid object. It can expand and compress even while sealed. Thus the air can expand along with it.
The bends!!! A good example though!!
Thanks
In scuba diving school… they taught us to constantly exhale. Holding your breathe is bad for you.
Yes, that's the rule
What would happen to you if you held your breath?
@@SammyMFsosaaanothing. Breathe normally during ascent. If you hold your breathe and stay at the same depth nothing happens.
@@SammyMFsosaaaif you go from like 20m (65ft) to 0 without exhaling you would probably damage your lungs quite significantly or possibly die
It expands in our Rebreathers as well we have to let the air out the side of our mouths as we go up
so what u want to release all the air from ur lungs and then dive?
@@82473C aloha This only apply to scuba diving,because you are using compressed air at depths
Whit a scuba tank you need to exhale when survacing yes
Just keep breathing normally. Never hold your breath when ascending.
Is the process reversed in fish?
Bad diver after he fills the bottle he’s holding his breath.
😂😂good point but he is not going up yet 😎
@@justscuba-e7b number one rule of scuba diving. Always breath.
Doesn’t have to be going up to follow the number one rule you’re taught day one.
Good, you retrieved the cap😮💨 . Was worried you’d litter
Would never litter, we are professionals at what we do 😎
Moral of the story
Breathe the water into your lungs 🫁
Emergency ascent, “Look up, point up and say ahhhhhh all the way up.”
Thank you for the information.
Our pleasure!
Little Harriet is so adorable.
This is the opposite of insane. This is basic physics, which follows logic and sanity.
@@nw4042 imagine if people would follow that! That would be insane too!
Don't hold your breathe while diving.
**dead diving students float to surface**
scuba!
Only hold your breath if you took the breath before you dove down and not from a scuba tank underwater
Instructions were unclear, now I'm in heaven.
We've advanced so much we can't afford American announcers.
hahahahahaaaaaaa
I’m curious. When you take off the mouth piece to fill the bottle then reinsert it, isn’t water getting into your mouth? WhT do you do with it? Swallow?
Just exhale water goes out, regulator is designed to do that
"Don't hold your breath underwater."
Tried this the other day at the lake, would not recommend.
Number one rule of swimming underwater
Don't breathe the water, breath the air
Alright sir, next time I'll breathe underwater.
But with a regulator please
The only thing my SCUBA instructor called me out on was when we were sort of "let loose" in the dive pool. Slightly sleeper than normal pool, nothing 30 foot or truly deep. I was bouncing from the bottom to the top without exhaling. I knew the air would expand so I did a shallow breath and bounced. He had to call it out because this would rupture a lung if done for a greater distance.
It's also why most people surfacing off air would always blow bubbles.
@@zendell37 great experience
I love this visual explanation.
When you capped the bottle it appeared to be close to 50% air and water. When you showed the bottle near the top, I couldn't see any of the water.
Is that an editing issue or did the water escape as the air compressed?
Great video. I was taught this theory as a submariner, if you have to leave the submarine at a survivable depth. We had a 30 meter tank that was used to show how a bag of air would expand and pop, which would be the same as the human lungs. Unfortunately this did happen due to the human instincts to hold your breath.
Super
Now that you told me not to hold my breath it’s literally the only thing I can do. Thank you for that.
Instructor: don't hold your breath
While badjao: hold my breath
Labuan Bajo guy: what a joke
And that is why you don’t hold your breath when dying 😂💀killed me
Diving 😎
Instructions unclear, i tried breathing underwater
Now do it without smashing the bottle with your hands while opening it.
Yes....physics. It is truly insane.
@@Zatracenec absolutely amazing 🤩
That's true, but wait a minute. He made sure it has enough pressure to throw the cap by pressing the bottle.. you can see it on bottle..
Plenty of pressure for the cap to fly
Ur a bit of a clown bud
That is a great demonstration!
Thanks 🙏
Each 30 feet adds one atmosphere of pressure. So, filling the bottle at 60 feet will, at the surface, have 3 bottles of air squeezed into one bottle or around 40 PSI above sea level pressure.
100 % great explanation
Anyone else happy he retrieved the cap at the end?
Guy breaths into bottle: "INSANE!!" People need to stop overusing "INSANE" as it has lost all meaning.
He might of meant his breath was “insane” stank even under water
Great explanation
Thanks 🙏
This explains a WHOLE LOT!!!!
It does !
The next time I'm a plastic bottle, 60 ft under water, I'll keep that in mind!
“We got this little plastic bottle and fill it up with ERRrrrrrr…”
@@JulianCavett 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🤙🤙🤙🤙🤙🥵
Stay out of the ocean. Got it
Mans showed y’all the bottle cap before he could get cancelled 😂
Indeed
New Kirkland ads be crazy 😂😂
Did he fill it air or carbon dioxide?
Man said driving pals.
Maybe
i hold and slow my breath down all the time when diving, you can use much less air that way. And i never had any problems doing it.
You probably wanted to say we should not close the glottis. When the air in the lungs can freely move out, you can hold your breath as long as you feel us okay for you, depending on the % of oxygen in your mixture. For me holding it is better than just slow breathing, i slowly breath in then hold it then slowly breath out. The only thing is that we should not hold it by closing the throat, but by keeping the lungs expanded, the excess of the air just bobbles out.
we probably should explain that to divers and don't repeat the same old thing that forbids breath holding while diving. Breath holding significantly increases my bottom time, and warms me up too
to show how it should be done, you should have left the bottle open upside down
Ok 👍🌴
The part he doesn’t mention is that SCUBA divers are trained to continuously release a small stream of bubbles in the event their regulator gets knocked out. This is to prevent lung damage and you should have more than enough time to re-locate your primary or find your secondary - or - your buddy diver’s secondary. Nothing to panic about, but this should be second-nature for all SCUBA divers.
Yep should !!
If the bottle explodes while you're underwater and your ears are underwater too.... That'll be fun
I think the thread on the bottle will go before exploding
The caption is a bit deceiving- don’t hold your breath while scuba diving. Holding you breath underwater while free diving is critical to life. Taking a breath at the surface and holding it while going down = good. Taking a breath while down and then holding it while ascending = ruptured lungs. If you say ran out of air while down, you simply blow a thin stream of air while you ascend to maintain safe lung pressure.
thats why the video is for scubadivers, Aloha!!
My diving instructor: if you have to go up: start screaming. Don't stop until you break the surface.
And yes, no matter how deep you are, you will have enough air to keep exhaling
Informative ☺️ thank you 😀 had no idea 💡
Awesome happy to help
For those who missed the lesson in science class jaw jacking around, this principle is called "Boyles law".
Awesome 🤙
GOOD VIDEO ! BY THE WAY, I LOVE THAT FINAL "CREIIIISI" 😂
Aloha thanks
no the pressure of the water forces the air to compact. When it goes up the water pressure is less and the air expands.
nothing to do with compressed tank.
even if you free dive and blow air in the bottle it will do the same thing. No compressed air tank.
Yes will do the same good point.
Thought to come up after doing it 😎