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Poll: Dr. Stone Episode 12 Discussion


Sep 20, 1:45 PM
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ElZavier said:
MenchiK1 said:


They didn't make it clear, the "water" was Sulphuric acid but bubbling up from it was Hydrogen Sulfide gas, which is heavier than air and can kill you IF you're stupid enough to walk into it. There were probably a dozen ways to get the water out of there without having to risk breathing that in, that's why this show is dumb, they over complicate everything for dramatic reasons.

Yeah, i mean just search "boating on acid" on youtube, the dude just boating on sulphur lake at Ijen Crater without gas mask


Note. Senku says it's the geography that bothers him. Because the mountain forms a bowl around the lake, the gas can't escape. That's why it's dangerous.
 
Sep 20, 1:47 PM
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Jans6ever said:
That shit looks NOTHING like a real sulfuric acid lake in real life. The animators fucked up. They should have looked it up a bit more.


You mean like this one?

https://i.imgur.com/tuoO85X.jpg

Yes, how inaccurate by the animators.

Go Google "Sulfur lake" and click on Images.
 
Sep 20, 1:47 PM
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another banger of an episode props to ginro for overcoming his fear
 
Sep 20, 1:50 PM
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The episode gets a 5 as usual. Also, it's fun to laugh at the people who complain about the show being "dumb" and "unrealistic" but they're still watching at episode 12, and they can't do a simple google search for pictures of sulfur lakes, which look exactly like the one in the show ... or understand that the danger lies in the gas being bottled up by the geography around the lake. Which is right there in Senku's comment, "The geography bothers me". If the gas can escape, no danger. If the gas can't escape, danger. But I know, complaining cynically sounds intelligent.
 
Sep 20, 1:56 PM

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Interesting bonding this episode, as they put their lives on the line to aquire Sulfuric Acid!

I never had really great grades when it came to chemistry at school, but this definitely made me look back into the stuff again. H2S is some nasty stuff, so I can understand that Senku wanted to be very cautious obtaining the Sulfuric Acid. Even after going together, to help and look after the other, it's Ginro who saves the day!

That Sulfuric illusion was pretty cute, until yeah, time to forget that... pure nightmare stuff.
 
Sep 20, 2:02 PM
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unlike most of this series that at least captures the art style well enough the latest episode just completely missed the mark certain things went on way too long and the visual of the sulfuric acid wasn't nearly as good as it was in the manga
 
Sep 20, 2:17 PM

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I absolutely love the way the Sulfuric Acid adventure is told; like the chemical is a demon that the scientist have to battle.

I'm so proud of my weak and lazy son for doing the right thing even though he was scared... it's these little moments that make Ginro so awesome! I'm totally here for the Senku x Chrome bromance too!
 
Sep 20, 2:37 PM

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Nice, finally we get some development from Chrome and some more emotional moments. His man-to-man talk with Senku was really nice and it made for a good parallel with Kohaku and her situation. I thought it was so cute when she asked Chrome whether he would take her for a bride but they had to ruin it with the gorilla joke. Seriously, when will they stop with the slapstick jokes.

Other than that it was nice that Ginro overcame his fear at the end, but he's still a wimp and an idiot. Unfortunately this moment alone is not enough to overcome my impression of him. Old dude is cool though, he really manipulated Ginro to do the right thing.
 
Sep 20, 3:01 PM

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"nature doesn't have a mind to think with" - Max Planck, the father of quantum physics, disagrees:



"I regard consciousness as fundamental. I regard matter as derivative from consciousness. We cannot get behind consciousness. Everything that we talk about, everything that we regard as existing, postulates consciousness."
 
Sep 20, 3:14 PM

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Good thing Ginjo was there. Chrome nearly freaking died!

Collecting the sulfuric acid definitely wasn’t easy, but they got the job done.
 
Sep 20, 3:19 PM
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Wow that sulphur lake was terrifying. I thought Chrome was a goner for a moment there.
We can be happy, when the cicadas cry.
 
Sep 20, 3:38 PM
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Man, Chome almost lost his life
 
Sep 20, 3:41 PM
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aLotQuestion_ said:
To be honest, I don't understand how this work.
From what I saw, they just don't need to breath during the process.
They could have just:
1. Hold their breath, there are primitive people, someone should have better stamina to hold their breath and find this someone to help.
2. Make a long (glass)pipe and pump the acid out from a safe distance.
Why no one has thought about that? Am I fundamentally wrong about logic?


Nah you ain't wrong, it's just that in doing so, destroys any dramatic effect
 
Sep 20, 4:09 PM

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another great episode. nothing much to say really. i truly enjoyed it. looking forward to the next one.
 
Sep 20, 4:14 PM
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MariusMan said:
So slow pace, but i love it anyway

I don't find it slow. I mean it makes sense in the context of the anime
Plus senku is fascinating to watch
 
Sep 20, 4:34 PM
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Audinga23 said:
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
YOU SAY IS SO SHOW ME AT LEAST ONE WHO CAN DO IT ... to only say there its not enough we need facts dude XD facts doesnt care about your opinion ma friend ...show teh person or video who p actually pulled it off then i say ok you right ..but now you just shit talker thats all


Science isn't my strongest subject but even I know these things are possible. There's always stories about people doing "superhuman" stuff, one of them is called adrenaline. I've heard one where a man lost one of his leg on farming equipment and drove to an hospital (obviously I don't know the full details). Also I heard about the story about mother who lifted the car too. How many stories have you heard about survivors surviving near enough impossible odds, it's for this very reason. Adrenaline doesn't give you superpowers or anything, but it does push your body to it's absolute limit when needed. Look it up. Most of these events are unexpected and unplanned, I doubt people waited for a camera to show up before doing these feats.

Dr Stone may have exaggerated this fact, plus the fact that it's an anime where often characters do the impossible. Look at Kohaku, she's lacking a lot of muscles. She doesn't exactly look like she has "gorilla" strength.

You might not be able to lift a car up by choice, but if it was blocking you or someone else from safety, you may be able to achieve that (key word is "may", because it doesn't always work out well). Instead of asking for evidence to prove this, why don't you look for the evidence to disprove this instead of just going "Nope! What nonsense!". You're just arguing without anything to back up your claims. Look these things up, we're not here to spoonfeed you on demand.

Oh yeah, remember the online video of the two toddler siblings? One crushed by furniture while the other managed to actually help their sibling get out, admittedly struggling to help at first because well...their age. One example you can find on YouTube.
 
Sep 20, 4:34 PM

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Great episode as always.

I never knew it was so risky to obtain H2SO4. I remember using it back in school but I guess those solutions are heavily diluted to avoid averse risks that could occur if something goes wrong.

Loved the Senkuu and Chrome interaction, Kohaku's little flashback was great too and her interaction with Chrome was great too.

ttcchen said:
4Ag + H2S + O2 → 2Ag2S + 2H2O
Silver when in contact with hydrogen sulfide in the air will lose its silver shine, resulting in the blackness which is Ag2S

I was hoping someone would post the equation, thanks. xD

aLotQuestion_ said:
To be honest, I don't understand how this work.
From what I saw, they just don't need to breath during the process.
They could have just:
1. Hold their breath, there are primitive people, someone should have better stamina to hold their breath and find this someone to help.
2. Make a long (glass)pipe and pump the acid out from a safe distance.
Why no one has thought about that? Am I fundamentally wrong about logic?

I don't think holding their breath would work, you would definitely end up inhaling a little bit of air but yeah I actually wondered about the second thing too. If they could've just created some kind of pump which probably would've worked fine. Maybe they just didn't have the means to do it or create a long enough pipe for that matter.
 
Sep 20, 4:44 PM
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ElZavier said:
Dr Stone : "SULPHUR IS EXTREMELY DANGEROUS IT WILL KILL YOU IN SECONDS!!!!!!"

Kawah Ijen Sulphur Miners : "Hold my pick axe"

Seriously, is sulphur THAT dangerous?, i knew it's dengerous but not THAT deadly since i live in Indonesia where it's common to mine those thing especially in Kawah Ijen where they mine it on daily basis.
Did you know that there are many geothermal manifestation that more dangerous than kawah ijen? Remember Dieng Plateu inccident? Yea, that shows you how dangerous geothermal manifestation are.


Senku warns them because he dont know that geothermal manifestation chemical composition and concentration are, so he just play safe by wearing gas mask. Its common knowladge for any geologist.

Dont Underestimate Geothermal Manifestation Hazard are!

ps. Im also from Indonesian, so I can tell you that most Indonesian people still dont know about geothermal
Modified by Inori_Hatsune, Sep 20, 4:53 PM
 
Sep 20, 4:49 PM

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Really enjoyed seeing Senkuu and Chrome together as usual, I wonder if were gonna get a new intro soon?
 
Sep 20, 5:23 PM

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Though it may be a bit exaggerated, and some people may say something like "Oof, this 'dangerous' gas couldn't be that dangerous" and "I saw people go through that with his nose wide open", but does it truly matter??

Yes, Dr. Stone is using a 'supposedly' real life science concept. But it's still not a real science!! It's a science fiction. Though maybe a sudden intake of sulfuric acid's gas could cause nausea at most in real life, every element could go into the story with the purpose of 'entertainment'. Please stop relating some work of fiction toward reality. Your kind of people cringe me the most.
 
Sep 20, 5:34 PM

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If it wasn't for Ginro, Chrome Would've been cuddling with acid in that pond/dam! He certainly did his part as a bodyguard!

That Kohaku/Chrome little moment was a bit touching. I think the writers thought they were baiting us to thinking Chrome was going to die with those lame death flags.
¡Ay, caramba! --- Bart Simpson

 
Sep 20, 5:54 PM

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Audinga23 said:
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
ttcchen said:
and as we all know you can't trust anime's depiction of characters. A tinyass girl can have the strength of a thousand man and a frail looking boy can be a boxing champion. You can't tell how much muscle a character has just by looking at his design.

And like I've said over and over again, it is possible irl. There are people so strong they're borderline inhuman. Reality isn't as realistic as you may believe. There're insane unbelievable things happening in reality every minute. Don't assume something's impossible without looking into it.

And lastly, your average anime/Japanese guys usually weighs around 47kg. Asians' body structures is different from us. They have smaller bones and thus lesser weight.

Maybe next time learn to speak with proper grammar and less swearing before talking to me.
YOU SAY IS SO SHOW ME AT LEAST ONE WHO CAN DO IT ... to only say there its not enough we need facts dude XD facts doesnt care about your opinion ma friend ...show teh person or video who p actually pulled it off then i say ok you right ..but now you just shit talker thats all
no body is gonna post a vid of them holding a stick with another person dangling on the other end of it. fact is humans that strong exist. get it through your thick skull. also, don't quote me three times.
 
Sep 20, 7:25 PM

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heg said:
just activate our suspension of disbelief for shonen shows dudes lol

THIS. RIGHT. HERE. 👆
Like, maybe it's not an actual science documentary? Maybe it doesn't have to be absolutely accurate in every little detail? Heck, it even says so at the end of every single episode:
This is a work of fiction [...] based on reality.
Based on reality, but not actual reality. Same thing when Hollywood decides to make a movie about some dead people found in a weird location somehwere with no actual explanation on how they died - and spins it into a horror with a maniacal serial killer or an alien monster or a ghost or whatever else.
Come on. If you haven't jumped off the train where this kid stayed alive for 3700 years inside a stone shell, forcing himself to be awake by counting the passing seconds, surely you should be able to overlook much smaller inaccuracies and just enjoy the series. People go on about how tropes and stereotypes and yelling get tiring so fast - the same is true for harping on nitpicked inaccuracies and impossibilities.
Modified by yellowheartren, Sep 20, 7:30 PM
 
Sep 20, 7:37 PM

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Until know I thought that the antibiotic will be just a stepping stone, but looking at the pace and episode count I assume it's pretty much the endgoal?
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Sep 20, 8:09 PM

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HDVision said:
Until know I thought that the antibiotic will be just a stepping stone, but looking at the pace and episode count I assume it's pretty much the endgoal?


I think so. The rest of the missing components are:




 
Sep 20, 8:22 PM
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Lel0uchZer0 said:
MariusMan said:
So slow pace, but i love it anyway

I don't find it slow. I mean it makes sense in the context of the anime
Plus senku is fascinating to watch
i know senku is brilliant but every episode is the same, a new thing for the medicine
 
Sep 20, 8:28 PM

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Word of the wise: Those gas masks would have not helped much. Way to much exposed areas, namely the eyes. Theirs a reason so many soldiers in WW1 went blind for periods of time. Sulfuric Acid, and any of it's components in the gas form are dangerous as heck.
 
Sep 20, 8:55 PM

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Vooo said:
They are making penacillin, why does Senku need all these extra ingredients? alterior motives? Is he the real villain?
Did you miss the part where Senku explained that penicillin is a mold that was discovered by accident and it would be nearly impossible for them to find again in time to save Ruri? They need all those chemicals to make the alternative to penicillin: sulfa drugs
 
Sep 20, 9:57 PM

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A very suspenseful episode. Some really good character development going on, and the plot progression is fulfilling.

We are humans, not fish.
We don't know what kind of people we truly are until the moment before our deaths.
As death comes to embrace you, you will realise what you are.
That's what death is, don't you think?


------------------------------------
Itachi Uchiha
 
Sep 20, 10:32 PM

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A lot of people don't know shit about Chemistry yet they criticised this show "so stupid". Just google how toxic, dangerous H2S, SO2, SO3 is. And making protective mask is the best way to deal with any type of toxic gas. "Just hold your breath!" lol. People can only hold their breath for like 3-5 minutes at best. People who deal with H2SO4 need to be extremely careful and not at rush since that shit can literally get you burnt heavily if you touch it.
 
Sep 20, 11:35 PM
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ttcchen said:
Audinga23 said:
YOU SAY IS SO SHOW ME AT LEAST ONE WHO CAN DO IT ... to only say there its not enough we need facts dude XD facts doesnt care about your opinion ma friend ...show teh person or video who p actually pulled it off then i say ok you right ..but now you just shit talker thats all
no body is gonna post a vid of them holding a stick with another person dangling on the other end of it. fact is humans that strong exist. get it through your thick skull. also, don't quote me three times.
its just your opinion do you even know that 50 kg weigh droping down from one meter when he reach ground wiegts 10 times more? so 50 kg weig at the time of impact it hits ground with 500kg force ? so you want say that gumans posible to catch such wieight with sticks ...ok dude you won just go watch anime more :) evry meter of droping velocity weight increases 10 times .. so yeah do the match or go back to school.
Modified by Audinga23, Sep 20, 11:39 PM
 
Sep 20, 11:50 PM

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Well... That was chilling.



    I'm not lazy...
      I'm just very unproductive.


 
Sep 20, 11:50 PM

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Sr_N said:
HDVision said:
Until know I thought that the antibiotic will be just a stepping stone, but looking at the pace and episode count I assume it's pretty much the endgoal?


I think so. The rest of the missing components are:





I wonder if they'll take a quick detour to make Cola when they get to the carbonic acid stage



    I'm not lazy...
      I'm just very unproductive.


 
Sep 21, 12:26 AM

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still waiting for the cola
Living for the day i see animes of:

-Under Night In-Birth
-Atelier Arland series
-Love Live! Perfect Dream Project
 
Sep 21, 12:38 AM
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This episode is full of shonen moments lol
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Sep 21, 2:54 AM

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Yoo those nasty fairy's face is disturbing
 
Sep 21, 3:45 AM
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ElZavier said:
Dr Stone : "SULPHUR IS EXTREMELY DANGEROUS IT WILL KILL YOU IN SECONDS!!!!!!"

Kawah Ijen Sulphur Miners : "Hold my pick axe"

Seriously, is sulphur THAT dangerous?, i knew it's dengerous but not THAT deadly since i live in Indonesia where it's common to mine those thing especially in Kawah Ijen where they mine it on daily basis.


It's easier to breathe in Sulfur when it's in the air floating around you than when it's a solid mineral..
It might be common in the place you live, but still extremely dangerous (since, as you know not only from dr. stone, the best bet of finding solid sulfur is around a volcano). Just google up "mining sulfur in indonesia" and check out some top results.
 
Sep 21, 3:48 AM
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Just skipped around the dialogue this episode.

This pacing is so slow. From beginning to end all they did was make gas masks and get sulfuric acid. They mixed in enough melodramatic drama and flashbacks to make it poisonous to watch though.
 
Sep 21, 4:17 AM

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> Ginro's taunt against Kinro about that spear. It was amusing.
> I really like those gas masks. They look cool.
> Chrome proving himself that he and Senku will make science great again.

Love it or hate it, Dr. Stone is making me interested in science again. That's what I can say about it.

 
Sep 21, 5:03 AM

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Ginro finally got his silver spear, but it is not like what he envisioned it to be. Looks like Senku's next step is to make sulfur drugs, plus the thought of sulfuric acid is quite deadly as well.

An expedition to find sulfuric acid may turn heads from the usual that Mother Nature is 100% unpredictable of. And in the case of Senku's death, Chrome is dealt the knowledge of science of 2 million years, too soon maybe? But it is a gamble for the future. And of course, Chrome being himself, doesn't back down from a challenge that involves death, but rather, teamwork. And Kohaku has a duty too, similar in ambitions.

Gas masks to take in the sulfur onee-sama "demon", and trembling in the name of science. There's many risks in scientific research and improvement, but for the future, conquer that fear to keep safe and move on. And Ginro took that shot to save Chrome from the impending accídent and overcome his fears to acquire sulfuric acid.

It's been 3 months since this started, and I'd have to say this quality has held up constantly well! Onward to the 2nd cour of this series!
 
Sep 21, 5:35 AM
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best ep. of dr.stone feelings and friendship.

i loved it
 
Sep 21, 5:47 AM

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I wonder how deep is Senku's knowledge?
it's really interesting to focus on science
 
Sep 21, 7:43 AM
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Senku and Chrome relationship as friends has increased, was amazing how Chrome made senku realize that would be better if they go gather the sulfuric acid together!

We got to know more about why Kohaku chosed to be that way!

We got some cute shots about Kohaku, she is so pretty!

That ending scared me, but i was expecting Ginro to save Chrome!
 
Sep 21, 11:46 AM

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Lelouch0202 said:

aLotQuestion_ said:
To be honest, I don't understand how this work.
From what I saw, they just don't need to breath during the process.
They could have just:
1. Hold their breath, there are primitive people, someone should have better stamina to hold their breath and find this someone to help.
2. Make a long (glass)pipe and pump the acid out from a safe distance.
Why no one has thought about that? Am I fundamentally wrong about logic?

I don't think holding their breath would work, you would definitely end up inhaling a little bit of air but yeah I actually wondered about the second thing too. If they could've just created some kind of pump which probably would've worked fine. Maybe they just didn't have the means to do it or create a long enough pipe for that matter.

They could cover their whole faces to prevent accidental inhaling. Melon girl already has the equipment :P
Or just use a fishing pole and tie the jar to it.

Audinga23 said:
ttcchen said:
no body is gonna post a vid of them holding a stick with another person dangling on the other end of it. fact is humans that strong exist. get it through your thick skull. also, don't quote me three times.
its just your opinion do you even know that 50 kg weigh droping down from one meter when he reach ground wiegts 10 times more? so 50 kg weig at the time of impact it hits ground with 500kg force ? so you want say that gumans posible to catch such wieight with sticks ...ok dude you won just go watch anime more :) evry meter of droping velocity weight increases 10 times .. so yeah do the match or go back to school.

Even if there is a human (or robot) strong enough to try this, the stick would just break while catching the falling body.
 
Sep 21, 11:53 AM

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That was a close call! o_o; I thought Chrome will be done for, and if not for Ginro, it would be Game Over for sure. Acid Sulfuric is a very dangerous chemical...

Great episode as always!
 
Sep 21, 1:10 PM

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Nice episode. They dragged the sulfuric acid part too long though. In the manga things sometimes go very fast but this didn't feel like it should occupy the whole episode. Animation still looks lacking in some areas but still OK. This is a problem I have with the manga too but sometimes the profile views of the girls look so bad. Kohaku is an attractive girl, but the face profile looks so bad....
 
Sep 21, 1:13 PM
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It was one of most intense eposode of the series.
 
Sep 21, 1:41 PM

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It appears there are a lot of people who have misunderstood some of the finer aspects of the chemistry in this episode, so as someone who has actually studied chemistry for 5 years and stood in the lab working with all of these chemicals, let me clear up some of the misunderstandings.

1. Sulphuric acid
The chemical they're trying to get is dissolved in the lake's water - sulphuric acid (H2SO4). It's a liquid, and even in its concentrated form, you would have no problem holding your face just centimeters above the surface and taking deep breaths - because sulphuric acid is not very volatile, the concentration of the acid in the vapor is negligible (at room temperature and normal pressure). There is also fuming sulphuric acid (also referred to as oleum), which is sulfur trioxide dissolved in H2SO4 - but that's not the same thing, although it would admittedly fit closer to what was depicted in the episode.
If you touch concentrated sulphuric acid, it will burn your skin and, if not washed off with copious amounts of water, will cause serious damage within 10 seconds. Nothing fatal, though, and a small splash actually eating through the pipe on Senkuu's gas mask within seconds is complete bullshit. I've had drops of concentrated sulphuric acid on my clothing and often you don't even notice until you wash them, because that's when the weak fibers actually break and holes show up.
Through all this, I've only talked about concentrated sulphuric acid, which is 95%. You would never actually encounter this in nature, though. The concentrations in actual acid lakes are much more dilute, and thus the effects of exposure will be significantly weaker, to the point where you can touch the water and be completely fine if you casually go to wash your hands afterwards.

2. Sulfur
Sulfur is just the pure Element S. It's a yellow solid and not really dangerous in any way. You can touch it, lick it, even swallow it and be completely fine. If you eat a crystal of sulfur, it'll just come out the other end the same way it came in - because it doesn't react with anything in your stomach or intestine. It was not relevant in this episode at all, and was neither mentioned nor depicted.

2. The actual gases in this episode
There are 2 gases that are dangerous and common enough to be relvant here, one of which is mentioned in the episode. That one is Hydrogen sulfide (H2S), a highly toxic gas. The depiction of the silver turning black is a reference to the reaction of H2S with silver, which forms black Silver sulfide. There are 2 major flaws within the presentation in the episode. The first is the reaction of the characters. H2S smells. Really really bad. The stink is very bad even at concentrations so low they wouldn't even be close to being considered dangerous. If you've ever smelled rotten eggs, a burp on an upset stomach or a smelly fart - that's miniscule concentrations of H2S (among some other compounds). There is literally no way they could have approached an area with lethal levels of H2S without noticing the odor. The second flaw is again concentration. The depiction with the black spear makes it seem like one inch the air is completely fine while the next it's lethal - that's simply impossible due to diffusion and convection. What they would really have observed is the whole spear tip gradually turning blacker over time. It is possible for the gas to accumulate because of its density, though, which was correctly referenced in the episode.
I personally cannot confirm it because I've never gone that far, but we were told that when the H2S concentrations approach lethal levels, you actually stop smelling it. We were under strict instructions to evacuate immediately if we were to stop smelling when working with H2S.

The second gas that could be relevant here sulfur dioxide (SO2). I won't go too far into detail with this, but I will say that the reaction of the characters is again incoherent. Unlike H2S, SO2 won't kill you immediately if you breathe in too much of it, but it is highly irritating and will send you into a coughing fit. If someone were to approach an area with lethal levels of SO2, they would be coughing their lungs out way before they actually got there. It is quite similar in behaviour and toxicity to NOx, in that it will dissolve in water to form an acid, in this case H2SO3 (notably NOT sulphuric acid).

No, the episode is not realistic, but it is also not entirely false (gas accumulating in holes or craters is a very real danger - that's where the saying "canary in the coal mine" has its origin, as they were allegedly used as a "gas sensor" by miners). I think it's a Shounen anime and therefore a bit of negligience and some dramatic overstatement is completely acceptable, small inaccuracies like that are in pretty much every episode of the show. However, it is blatantly obvious that the writers of the manga have never actually encountered these gases in real life. Or if they did, they haven't taken a breath.

The most bullshit thing in this episode by far was Ginro being able to hold onto that Spear with Chrome at the tip. That's some grade A gravity defiance right there.
Modified by Knockator, Sep 21, 2:00 PM
 
Sep 21, 1:55 PM

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Joined: Dec 2014
Posts: 11415
this episode was something alright
 
Sep 21, 3:08 PM

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Joined: Jul 2019
Posts: 51
hell yeah chrome and senku are now an actual team and not just a subordinate
 
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