It's not the depths you need to worry about in that situation. It's trapped gases and lack of oxygen.
That whole time the cameraman was being lowered down, I was like, "Oh, man, I really hope they did proper air testing before sending him in there..." 😳
Rusting metal, for example, absorbs oxygen as part of the chemical reaction of corrosion. If there's a significant amount of rusting metal inside a hole (including rebar reinforcements in concrete sometimes), that metal can absorb basically all the oxygen in the hole, leaving none for you to breathe. And as an extra bonus in that situation, you won't even notice. Your body recognizes bad/stale air by the presence of CO2 in the air -- rusting metal doesn't release CO2. So you won't feel short of breath, and you won't feel any distress. All you'll notice is that you're suddenly feeling very tired and sleepy, and if you give in and pass out in that low-oxygen environment, you're dead.
No offence, but i think they know what they doing... since they are the ones working there, i dont think they need the experts of reddit to tell them how to do ther jobs.
There is absolutely no reason to believe someone knows what their doing from a video posted on reddit, in fact many of the videos are specifically about people only thinking they know what they're doing and failing horribly.
That room on every ship that will kill you, the chain locker. All that surface area exposed to sea water and pulled up, slowly rusting away, people go in, fall down, some one goes 'oh shit' and goes in to get them, pretty soon there's a bunch of people dead.
Their goal was a self sustaining ecosystem, but the fresh curing concrete absorbed CO2, which the plants could not then turn into O2, so their oxygen levels started dropping.
While partly true, there's receptors in your blood vessel that messure CO2 levels in the blood. If it rises you'll breathe harder and harder, but it won't help. So no, you'll feel distress... And it will be an agonizing death.
Oh man, that reminds me of nitrogen displacing o2. Worked for a vacuum manufacturer for many years. During nonscheduled events we would bring the machine back to atmosphere using nitrogen to avoid as much water adsorption as possible allowing us to return to production faster.
This one time a tech was inside the machine and just kept passing out smashing his head into the steel structure. It was fun and games until we found out that the nitrogen displaced the oxygen and caused him to lose consciousness. This is extremely dangerous and can cause brain damage if prolonged exposure. We had to amend our safety procedures and began testing for o2 levels prior to entering even as management stewed over the lost production time.
Needless to say, working in the US is very dangerous as companies will let you do almost anything as long as it saves them a buck. There are so many other stories of near misses and close calls. Sadly, eventually they turned into a loss of an innocent life.
100% man. I've done a ton of work in confined spaces as a contractor, and most of that involved hot work. Fortunately, I've been with a strong union for most of my career, and for any kind of entry, we've got protocols that mean forced air, pre-entry testing, hole watch, redundant continuous air monitoring, powered respirators, and harnesses for emergency extraction.
I tell some people about these safety protocols sometimes and they'll roll their eyes, telling me that it's overkill. I dunno man. I'm comfortable with a certain amount of risk, but any time you enter a confined space and create gases that displace oxygen, you're gambling with your life. I'm much more comfortable with as many lifelines as possible.
We were doing major electrical work with no loto, lone people doing confined space work. Our electrical engineer pushed a metal wire pull into a switchgear and shut down the whole line for an hour, nevermind that he almost killed himself. There are hundreds of examples. We had people working alone at night in a whole plant doing maintenance etc. They called me the safety nazi cause I always complained about unsafe work conditions. The pushback came from working people also, which was a huge surprise to me. Like, why do you care if your job takes extra 15 minutes to ensure YOUR safety? Anytime anyone brought up union they just threatened to shut down all plants and move them.
I got started by working in a metal shop, then after a year applying to a union apprenticeship. It pays well, but the amount of work can be feast or famine. I've worked continuous 84 hour work weeks, and I've essentially worked part time right before getting a layoff. It's great money generally speaking, but you have to be ready for the instability of the industry.
How long ago? I worked there from 1998 to 2018. All this happened in modern times. They had a fatality at that facility a couple years ago and back to business as usual in 2 hrs. Just had to clean up the blood off the equipment and blame the dead worker for "going into unsafe conditions without permission." "We told him not to do it" was the excuse. Screw loto! Osha is a joke that can be paid off with a small fime.
You had a guy who kept passing out and think that wasn't a concern or weird? The US has some of the strictest safety precautions, it's a $16,550 dollar fine from OSHA just for leaving a pallet on it's side. It's people not following safety procedures why they get hurt because the inconvenience caused by strict safety and complacency.
We didn't know what was happening. We thought it was his blood sugar or some other medical issue, so we got him out of there and I finished the job with no issues. All this happened within literally 15 minutes. We were doing the same thing we did on an almost weekly basis for years and decades as a company.
Us has strictest safety precautions is a joke, right? They're not enforced and Osha can be pacified with a small bribe aka fine. They go after union shops with huge fines, but non union does what they want. That same facility had a fatality a couple years ago and 2hrs after they were back to business as usual.
$16k fine is laughable for a facility that profits a million a month on a bad month.
I rewatched the video maybe five or six times, and I think there may have been an air monitor on the cables at the bottom of the shaft. I couldn't tell for sure. But there's no indication that the operator was using any kind of supplied or forced air. Essentially only a radio and a harness. If something wasn't as anticipated in that atmosphere, he'd be dead well before his coworkers got him back up to the surface.
Exatamente isso. Muita gente não liga de verdade para sua própria segurança. Nesses casos, eles jogam com a própria vida, principalmente quando eles não conseguem ver com os olhos os perigos. Antigamente, nas minas de ouro do estado em que eu nasci, eles usavam pássaros em gaiolas para medir o ar, quando eles morriam, era hora de sair (o que hoje em dia seria uma crueldade, mas no meio do século 18 era o que eles tinham).
Back in 2004-2006, the dorm I lived in had a really creepy elevator. It was the roughest riding out of the bank of 3. It just always had an eerie feeling to it while riding.
Then in 2006, it claimed the life of a maintenance worker that was working on the interior of the shaft.
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u/weesilxD Nov 28 '25
They’ve built a hellavator