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China’s newest nuclear submarine sank in dock, US officials confirm
(www.theguardian.com)
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this post was submitted on 27 Sep 2024
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The possibility of being stationed in a submarine is one of the many reasons I did not choose to join the Navy; it's a nightmare scenario. This sort of incident makes me feel sorry for Chinese submarine crews - it's a bad situation made worse by destroying any shred of confidence in the engineers.
Not sure about other countries, but America's submarine force is volunteer. You wouldn't be forced onto a submarine.
I was on a sub and I chose it because being instantaneously crunched sounded better than starving in a life boat.
Read about the Kursk. Instantly crushed doesn’t always happen. Sometimes you get stuck in a compartment for six hours and slowly asphyxiate.
Would the sensation be similar to being at high altitude without oxygen? There is a Smarter Every Day video from several years ago where the host conducts simple cognitive and motor function tests in a pressure chamber which simulates high altitude atmospheric conditions. Within a couple of minutes of being off oxygen, he's suffering from hypoxia and is unable to either continue the tests, or to mask up, despite being told the he will die if he doesn't secure oxygen. Admittedly, it's incredibly chilling to see the guy rendered so helpless, but, from his perspective, it did not seem particularly traumatic. As I understand it, if he had not had his mask applied for him at that point, he would have lost consciousness and then died in his sleep shortly thereafter. All things considered, not the WORST way to go. Beats getting stuck in that compartment with a leak and eventually drowning.
No, you would suffer incredible pain from being unable to evacuate CO2.
You know how painful it gets when you hold your breath to your physical limit? That's CO2 building up in your body. Just going hypoxic on its own isn't painful, the pain is the body's response to having too much CO2.
Yeah, hypercapnia is fucked. I'm actually testing a small CO2 gas generator (literally just citric acid added dropwise to sodium bicarb with an acid trap and a dehumidifying stage) as a means to kill pests on houseplants and did some reading on the symptoms to be safe. It is unpleasant. It's not the worst death I could imagine, but it's shit.
As an aside, the way that CO2 kills bugs is interesting. Basically, the excess CO2 (in the range of 10-80,000 ppm) causes their spiracules (i.e. the little holes in their exoskeletons they use to breath) to stay open. This causes them to lose moisture until they die of dehydration (usually in a matter of hours). All this happens long before they asphyxiate or suffer from any sort of acidification from the CO2. It's a bit fucked up, but all other means of getting rid of the pests on my partner's houseplants have failed.
I use hydrogen peroxide spray to nuke my house plants. It's a drastic weapon, but really cleans it out. Just make sure you dilute it or you will kill your plants. It's pretty much chemo for plants.
It’s not the lack of oxygen that will kill you, it’s the build up of carbon dioxide. And carbon dioxide asphyxiation hurts the entire time.
You'd think someone would've invented carbon livoxide by now. What are these chemists even doing?