Is there a limit in shutter count, which is exceeded voids the warranty?
Didn't find anything on Google 😅
Hi r/forensics!
I'm currently doing some research into improved acid formulations for serial number restoration regarding firearms. Currently exhausted most options during my literature review/initial research of what has been done. Although I haven't been able to find anything on 2% - 5% Nital, all I know is that it used to be used at the lab I'm currently doing the research for.
I've managed to find MSDS and manufacturers that are selling the product and have methods for using it, just no articles or general research into it being used for restoration, especially compared to Fry's.
Any help/guidance from the community would be greatly appreciated!
In Dr. Stone, they use ethanol. Senku says that the revival fluid is 30% nitric acid, 70% alcohol.
Found a video that shows someone mixing 4mL (66%) nitric acid and 2mL (33%) alcohol, which is practically the reverse formula. https://youtu.be/uFwiZYfEsuY
And then there's http://www.ab.ust.hk/hseo/tips/ls/ls005.htm
Which describes mixing nitric acid and ethanol in a 1:2 ratio (33% nitric acid + 66% ethanol), which when the solution is stored in a closed container, will explode.
So, the revival fluid should blow up if they put a lid on it.
After having watched the first episode of the anime and seen the whole Nital idea, I'm kinda confused with Senku's corrosion theory for unstoning...
Okay, we use Nital to make corrosive attacks on steel structures, and he's trying to corrode with Nitric Acid and it's not strong enough. And sure, rock and steel do share similar microstructures, grain-wise like he says... BUT
Nital is a weaker acid than just pure Nitric Acid. If he was looking for a stronger acid, shouldn't he be looking for Sulfur up at Mount Fuji and make sulfuric acid?
Of course, acidity does not necessarily correlate to corrosion, since corrosion does involve a lot of chemical relationship between our perpetrator and victim of corrosion as well (remember that steel and rock can corrode with water alone).
Maybe I just don't understand how does ethanol actually makes nital a stronger corrosive than nitric acid for a silicate rock... he does mention something about the ability to infiltrate on the grains microstructure, but still, this is interesting for micrography analysis, not rock dissolution to save people from rocks around them, I think...
I'm not sure about this, honestly, since I'm not a chemistry expert, but maybe someone in the community might be interested as well on the subject?
Either way, I'm loving this Anime so hard, especially after the second one, with the 4, I mean, 3 applications of Calcium Carbonate.
I’ve been having a hell of a time finding exactly what concentration nitric acid and ethanol I need. All the sources i’ve found just say 5 mL of nitric acid in 95 mL of Ethanol. What do you guys use?
From what ive been reading, it seems like I need 70% nitric acid and anhydrous ethanol. Im not sure if that means I would put 5 mL of 70% or if I would put 7.14 mL to make it 5mL of nitric acid. Also, could I use 95% Ethanol solution instead of anhydrous Ethanol? It’s safer to store and less flammable as well as cheaper and I figure there’s already a water in the nitric acid.
Hello Everyone, I am hoping that you guys can give me some guidance regarding typical safety precautions used during nital etching, and storage of nital. At work there seems to be some concern about the nitric acid (2% by volume) creating hazardous fumes during the swab etching process, and storing the nital without a fume hood. For those of you that use nital etching, do you typically do it in a fume hood, and do you store them nital in a fume hood? Thank you!
I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.
Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.
Nitally's was my go-to restaurant when my friends came and I wanted to show them "look how cool St. Pete is (and therefore I am) with this hole in the wall fusion restaurant!" Now I need to find a new go-to.
[http://www.tampabay.com/things-to-do/food/Central-Avenue-to-lose-some-of-its-spice-as-Nitally-s-prepares-to-close_168079326](http://www.tampabay.com/things-to-do/food/Central-Avenue-to-lose-some-of-its-spice-as-Nitally-s-prepares-to-close_168079326)
Do your worst!
I'm surprised it hasn't decade.
For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.
I said "hey look, an escaPEA"
No one near me but it didn't half make me laugh for a good hour or so!
Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂
It really does, I swear!
They were cooked in Greece.
Because she wanted to see the task manager.
Heard they've been doing some shady business.
but then I remembered it was ground this morning.
Edit: Thank you guys for the awards, they're much nicer than the cardboard sleeve I've been using and reassures me that my jokes aren't stale
Edit 2: I have already been made aware that Men In Black 3 has told a version of this joke before. If the joke is not new to you, please enjoy any of the single origin puns in the comments
They’re on standbi
A play on words.
