Regarding the wait time, maybe I just got lucky, but just waited for my CPU usage to come back down and spammed modinfo -F version nvidia or some such until it stopped erroring. My actual hang-up was getting simpledrm working and then secure boot.
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Yep, checklist of basically everything I went through over the weekend. Sorted now, thankfully
I was on arch as a vestige from my school days, having never quite found the time to switch to something more stable. When I saw the news over the weekend, I checked and found 1 would-be-infected package on my machine that was thankfully months out of date. I’m well past the point of wanting to examine PKGBUILDs every time (hence the out of date package). But, instead of just removing AUR packages and sticking to arch repos, I decided to sweep up the technical debt by wiping and installing Fedora. I’m liking it so far, minus the absolute pain in the ass that is Nvidia on Linux. Fuck academics and their insistence on writing everything targeting CUDA; otherwise, I’d have saved a good bit of money a few years ago with a much more compatible AMD card.
I was told there would be dopamine, but all I got was apparently ethylbenzene with some unspecified functional groups. Where’s the dopamine, Lois?
Wasn’t also /r/ich_iel a big part of the reddit exodus at one point?
ornery_chemist@mander.xyzto
Programmer Humor@programming.dev•Based Haskell bluesky account
41·4 months agoThis one got me giggling. And now I’m trying to explain to my MBA colleague what’s so funny about a pun from an (admittedly less and less) obscure niche of the programming community.
ornery_chemist@mander.xyzto
Ask Lemmy@lemmy.world•Hey, guys. Is it a good idea to dunk PC parts in isopropyl alcohol?
1·5 months agoYep, sorry for going between terms. Also, if the confusion stems from just calling it “alcohol” at one point, I was using the word in the more general chemical sense (molecules containing a C-OH group), a class to which isopropanol and ethanol belong.
ornery_chemist@mander.xyzto
Ask Lemmy@lemmy.world•Hey, guys. Is it a good idea to dunk PC parts in isopropyl alcohol?
4·5 months agoNo dunking, and make sure what you’re buying is mostly alcohol (> 95%) and not water/alcohol mixtures often used for disinfection. Using in combination with e.g., a toothbrush is probably your best bet. IPA (and acetone) can strip some adhesives and cause certain kinds of electrical insulation to swell or dissolve, so a targeted approach is better. IPA is flammable (though less so than acetone), so be careful/well ventilated when allowing parts to dry, and ensure parts are fully dried before reconnecting to power.
IPA itself is only about twice as toxic as ethanol and certainly less problematic by inhalation than tar in the long run. I wouldn’t bother with a mask mostly because it won’t do shit unless it’s a cartridge respirator. However, IPA can sometimes facilitate skin absorption. IDK specifically about tar buildup but recommend wearing gloves (disposable nitrile is fine).
… this sounds absurd to me, at least as stated wrt the enzymes “dissolving” the floaters. Your body does not like foreign proteases floating around. I am also skeptical that the enzymes would survive denaturing and pepsin et al. in the stomach and duodenum (empty stomach or not), get absorbed intact, and somehow not get inactivated by the immune system (again, rogue protease = bad). Not to say that your floaters weren’t reduced (though the brain sometimes will just learn to ignore them) or even that the supplement wasn’t responsible via metabolites. Just, action of an intact enzyme itself seems unlikely. Corrections welcome; I’m going off my gut here and am not a biologist.
ornery_chemist@mander.xyzto
Ask Lemmy@lemmy.world•What is the technical hill you are willing to die on in your industry?
6·7 months agoDo not power law fit your process data for predictive models. No. Stop. Put the keyboard down. Your model will almost certainly fail to extrapolate beyond the training range. Instead, think for at least two seconds about the chemistry and the process, maybe review your kinetics textbook, and only then may you fit to a physics-based model for which you will determine proper statistical significance. Poor fit? Too bad, revise your assumptions or reconsider whether your “data” are really just noise.
Always run qNMR with an internal standard if you are using it to determine purity. And, as a corollary, do not ignore unidentified peaks. Yes, even if it “has always been that way”.
DOE models almost certainly tell you less than you think they do, especially when cross-terms are involved, or when the effects are categorical, or when running a fractional factorial design…
It’s not necessarily the cleanest reaction, but yes. That said, if you’re thinking of its Hollywood use case as a quick knockout agent, it’s not very effective for that purpose. It’s not non-hazardous, though; exposure for several minutes can cause dizziness and fainting, and prolonged storage can lead to phosgene formation through autoxidation.
ornery_chemist@mander.xyzto
Programmer Humor@programming.dev•The only way one should code C btw.
2·9 months agoMaybe incorrect rebracketing? It’s supposed to be be-inhalten, not bein-halten. Otherwise maybe a writing style thing…
Me: you’ve been in the freezer for hours now, please freeze Supercooled water: how bout nah
ornery_chemist@mander.xyzto
No Stupid Questions@lemmy.world•What strategy would you use to estimate the number of hazelnuts
13·10 months agoRoughly a truncated cone with diameters ~7 nuts and ~9 nuts, and the cup is ~12 nuts high (loose guesses, it is hard to tell due perspective and nuts of different sizes). Throw in an extra layer to account for the heap at the top (which is a dome taller than 1 hazelnut, but treating it as a shorter but full layer should give some error cancellation) to give a height of 13. The volume of a truncated cone of those dimensions is ~657 cubic hazelnut diameters. Random sphere packing is 64% space-efficient (though wall effects should decrease this number) giving a total of 420 nuts (nice).
Multiple edits for clarity amd typos.
Answer
This ends up being about 5% lower than the true answer. I’m surprised it’s that close. This is in the opposite direction from what I expected given wall effects (which would decrease the real number relative to my estimate). Perturbing one of the base diameters by 1 nut causes a swing of ~50, so measurement error is quite important.
Yes and no. No surface tension implies vanishing intermolecular forces, so the liquid would not be cohesive and would expand in all directions to the volume of the room… which is pretty much the definition of a gas. Not quite though: supercritical fluids also do this as long as temperature and pressure remain high enough, and are indeed useful in niche applications industrially.
ornery_chemist@mander.xyzto
Lemmy Shitpost@lemmy.world•When you work for a company owned by a A..hole
62·1 year agoPretty sure I just got
anti-briberyethics and compliance training that said no one in my company is allowed to accept such gifts lol
I’m not sure I’d call US sunscreens way worse (they are still very effective at blocking UVB, just not UVA as effectively), but there are definitely better options abroad. There definitely aren’t many options; that’s part of why Hawaii banning two common sunscreen ingredients for marine toxicity reasons was such a big deal.
Sure, there may be a maximal element, but not necessarily a maximum (there might be multiple people of equal and maximal gayness, not just one person).
Also, not relevent to the logic here per se, but last time this went around the conclusion was that a spectrum implies a total order, not just partial.
Yes, on the rare occasion I cook meat. Too unpracticed otherwise. I originally got one because I’m colorblind and was scared of undercooking red meat and tired of eating leather. As a bonus, I used it to get the temperature right when I got into fancier teas and inadvertently trained myself to judge the temperature of water pouring into my mug by the sound it makes within a couple °C, which is kinda neat. Now, if I could figure out how to do something similar so I stop overcooking food, that’d be grand…



In the simplest case, absolutely. I ran into black screens and wayland issues due to a combination of needing to enable simpledrm in the command line and working with secure boot. Not too much extra once you figure it out, though.