Fascinating! Only tangentially related: I've definitely heard of PMMA, and didn't realize it was plexiglass! It's used regularly in semiconductor fabrication. https://kayakuam.com/product/structsure/pmma-positive-resist... (also waaaay down on the list of uses at https://en.wikipedia.org/wiki/Poly(methyl_methacrylate) but I thought that first link was clearer. Look for "In semiconductor research and industry, PMMA ai…
That Methyl Methacrylate Tank
181–190 of 204 posts
Re: That Methyl Methacrylate Tank
#182Earlier quoted context omitted.
The answer is actually really easy, and it's been implemented successfully before: selective import taxes. You set import taxes so that they offset price advantages. If a country has shitty environmental laws, crappy labor protections, etc. then you prices that into their import taxes. That way they don't gain any advantages in a race to the bottom based on things that you care about in your own country. If a country…
Or we could just let it go offshore? Do we have to do everything here?
If we as a people pass environmental laws & labor laws because we feel that these things are important then why are we accepting products that are made in violation of our standards.
Re: That Methyl Methacrylate Tank
#183Why wouldn't there be passive protection systems designed in? After a big earthquake you don't want to have to also deal with other emergencies (à la Fukushima). Aside: One good side-effect of the 2011 Tōhoku earthquake being so horrific is that it stopped the self-obsessed whinging in my city (Christchurch was still trying to recover from an earthquake).
It's cheaper.
Re: That Methyl Methacrylate Tank
#184Being an armchair expert, I wondered if they couldn't have flown a quadcopter with a small drilling machine and drill a hole on the top to relive pressure?
Re: That Methyl Methacrylate Tank
#185Earlier quoted context omitted.
I'd agree that deregulation is a complete hard no for most people, but that's because removing bad/watered down regulation isn't enough. Calling for "deregulation" is like saying "defund the police". A very small number of radicals claim to actually want that, but most people think that something better has to fill the void. Bad regulation needs to be replaced by good regulation. If what you mean by "Deregulation" is…
"Defund the police" was such a dumb slogan. "Demilitarize the police" would have been much better.
I doubt any pithy slogan would have encompassed all of it, but the least they could have done was avoid something that most people would reject instantly for being insane. It's amazing that so many people managed to get past the slogan at all to get into the "well actually what we mean is..." and it was totally predictable that the slogan would be weaponized against the movement by opponents
Re: That Methyl Methacrylate Tank
#186Earlier quoted context omitted.
I'd agree that deregulation is a complete hard no for most people, but that's because removing bad/watered down regulation isn't enough. Calling for "deregulation" is like saying "defund the police". A very small number of radicals claim to actually want that, but most people think that something better has to fill the void. Bad regulation needs to be replaced by good regulation. If what you mean by "Deregulation" is…
There was a pretty decent campaign locally to make it legal to deliver fixed line broadband services. But once you convince someone that the legislation exists and the penalties exist for supplying fixed line broadband services, the next goal posts slide into place, and they reflexively defend the idea that the government would fine people more for overbuilding the national carrier to a greater extent than importing…
Re: That Methyl Methacrylate Tank
#187Earlier quoted context omitted.
Having the chemical in one location doesn't make it active all over, you need to disperse it. Like you need to shake glow-in-the-dark bracelets.
Well then... make a matrix of such fuse-containers? (say every 20cm or whatever) I guess manufacturing such a matrix would be pretty expensive though, you'd need to carefully automate its production I think. It would also definitely interfere with flow of fluid in the tank.
But I'm not a chemical processes engineer, so I don't know how much mixing is needed. But the existing emergency plan was to inject the the chemical through a single valve, so it seems like the dispersion and mixing requirements in this case seems to be low.
Re: That Methyl Methacrylate Tank
#188When this is all over, when they peel the metal tank away, will they have a gigantic clear block of material?
https://media.springernature.com/lw685/springer-static/image... So... maybe?
The sample recycling operator came across the occasional one that had polymerized, over months of identical ambient storage to the other bottles in the case which could still be handled as liquids.
Broke it out of the bottle and brought it into the office, where it was completely odorless and sitting there like a promotional acrylic paperweight with nothing embedded inside to promote :)
If this tank has a giant disk of clear acrylic at the bottom, it "might" be unprecedented to remove it intact and turn it into a fairly sizable lens if possible. If not clear, maybe even a mirror of some kind anyway.
Although there is probably some internal piping from inside the tank, embedded for display purposes primarily at this point ;)
Re: That Methyl Methacrylate Tank
#189By the miraculous grace of God, a crack allowed pressure to bleed & enabled our engine company to prevent thermal runaway. A BLEVE was the projected outcome, a firefighters worst nightmare - see the Kingman BLEVE - https://www.cityofkingman.gov/government/departments-a-h/fir...
Why bring God into the discussion? Do you think he’s monitoring our lives actively? Why is he a he? Does God have male genitalia?
Re: That Methyl Methacrylate Tank
#190Earlier quoted context omitted.
Well then... make a matrix of such fuse-containers? (say every 20cm or whatever) I guess manufacturing such a matrix would be pretty expensive though, you'd need to carefully automate its production I think. It would also definitely interfere with flow of fluid in the tank.
Easy to imagine protective mechanisms in hindsight, now imagine you have to build a system for every tank of every chemical in the world
And a standard to prevent similar danger elsewhere in the world.
Or is that too fantastic? Perhaps I should stick with the distopian fiction I so love. Why haven't flying cars taken off yet?