a thoughtful web.
Share good ideas and conversation.   Login or Take a Tour!
Devac's profile
Devac

x 32

stats
following: 29
followed tags: 25
followed domains: 1
badges given: 13 of 19
hubskier for: 1572 days

Look for it.

recent comments, posts, and shares:
Devac  ·  5 hours ago  ·  link  ·    ·  parent  ·  post: Pubski: July 15, 2020

It is contested, though I tuned out after news' signal to noise ratio became too much. And, really, does my trust matter? If it wasn't fair, there's no way the inquiry would show anything since then it clearly wasn't an impartial system to begin with. It it was, it's a moot point.

Sorry for not being much help. Should you wish to, I could read up in a few days on it and answer yours (and anyone else's) questions more thoroughly.

Devac  ·  6 hours ago  ·  link  ·    ·  parent  ·  post: Pubski: July 15, 2020

Count me in for meeting updates. Between finally earning enough to have actual savings and Poland being in the US Visa Waiver Program, I just might be able to do it. Dunno about Canadian visa, but it's to be taken one step at a time.

Devac  ·  6 hours ago  ·  link  ·    ·  parent  ·  post: Pubski: July 15, 2020

    Very interesting how Duda had the support of older people.

Older Poles are much more religious, conservative and, it has to be said, backwards. Learning from what happened with Trump, I'm not surprised in the slightest that a fearmongering populist won on the backs of people who'd rather fuck up everything for everyone than allign themselves with some citydwelling 'elite'.

Devac  ·  7 hours ago  ·  link  ·    ·  parent  ·  post: Pubski: July 15, 2020

Duda got reelected. Shit times will remain a steady course.

Work on last week's project keeps going onward, though had to slow down after I got peer review feedback on a paper from last April. It's funny how the author's deadline for augmenting their work is much, much stricter than the reviewer's. That said, it's nothing but mild grumbling from me since it literally replaces hobby physics with work-related physics. Counting it as a win, even though I'd rather get a week's rest more before chasing terms.

Health-wise, I feel a bit better with every passing day. On their own, changes are imperceptible but seen from a long-term perspective astound me.

Devac  ·  6 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

It's one of those problems where my intuition is an immediate 'yes', but I'm gonna think it over.

    Which is 100% useful if you want to build a bicycle but 0% satisfying if you want a deeper, intuitive answer of why the world works.

There's a wonderful book by W. Kruczek Moment Pędu w 20 Doświadczeniach (The Angular Momentum in 20 Experiments) that's aimed at Polish highschoolers. The goal of the book was to make the topic more intuitive. I don't have it, but I'm going to scan relevant pages next time I'm in the library and translate as best as I can.

Devac  ·  6 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

And I do, perhaps sounded a touch too militant above. It is a great problem, though. It's deceptive. The statement doesn't sound that far from those found in problem sets where "an ideal sphere of magical ice that always remains at 0 C melts without ever changing the surface area at the interface which somehow always remains at 10 C..." I like poking at this kind of stuff.

Devac  ·  6 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

So, some user who probably never used ODE in their life refuses to see their sophomorism on a problem that's good two leagues above my master's thesis in applied maths, which boiled down to a very restrictive treatment of Budyko-Sellers models (type of an energy balance model, used in climate science). Yeah, I'll weigh in, gimme a few days for prep.

Devac  ·  6 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

For whisky cooling? Sure, if I'm able. Seems a lot harder than what I'm doing here though, at least intuitively.

Devac  ·  7 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

Thank you very much! I shared a personal problem, it wouldn't be OK with you if I didn't follow up. At least that's what I think which, admittedly, isn't saying much.

Also, I don't know what happened, but that's one amazing, ego-boosting bugski. :D

Devac  ·  7 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

Here, the problem comes from a deformable body that changes the area where it touches the container in the centrifuge. The skin of the grape is crucial and pretty tricky, too; responsible for tensile strength and elasticity tensor, but having no appreciable depth. Waaaaay too complex model for this kind of problem, but I like the challange. I'm also curious how far I can take it before it'll force me to drop analytical formulae in favour of numerical approximations.

Deciding to share my results isn't going to be hard, but there's a question what could be learned from a failure in this case. We have quite a few physicists around here, so I think 'when' is the real queston. :)

Devac  ·  7 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020

My pleasure to share it. Stay strong and take care of yourself man!

Devac  ·  7 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 8, 2020  ·  

It's been a week since my procedure, and I already noticed an improvement: I don't get dizzy when I stand up.

I recently recalled this:

and in the prolonged absence of mk's data (sorry if this sounds like I'm passing blame, it's not that; I know everyone's busy and dealing with lots of things), started working on an explanation. It's a surprisingly tricky problem on both classical mechanics and the theory of elasticity, at least to someone who usually deals with electrons doing their thing. I don't yet know if/when it'll be ready to share with you, but I'm having heaps of fun and, oddly, get a lot of satisfaction from designing my own experiment to measure both mechanical properties of grapes and test their limits without a centrifuge.

Devac  ·  14 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 1, 2020

Hi, y'all. I'm at the cardiological ward, the procedure wasn't exactly smooth, but so far the only complication is a splitting post-anaesthesia headache that I've been nursing since around 14:00. Despite just lying pretty much since admission, I feel exhausted. Anyway, success remains to be seen over time, and the doctor decided to keep me here till Friday. Apart from those, I'm feeling perfectly fine. am_Unition (gonna respond to PM tomorrow, thank you though! :D).

Don't have much else to talk about, though I'm glad for six weeks off work. Still plan on doing research, just won't bother with all the bullshit semi-admin emails people forward to me for god knows what reason. Gonna read a bunch, maybe finally write a book review of my own.

Devac  ·  21 days ago  ·  link  ·    ·  parent  ·  post: Pubski: June 24, 2020

Thanks! I sure hope to bring good news afterwards.

    I wonder if you'd fare considerably worse here in the 'states

Oh, please. I'd be giga-fucked regardless of covid.

Devac  ·  21 days ago  ·  link  ·    ·  parent  ·  post: Pubski: June 24, 2020

Looks like I'm first? Give me dry Martini with a straw, extra silly.

My cardiac ablation is next week, and recovery should take about six weeks. Ideally, I'll be under observation for one or two days and released home to recuperate. It's also when cardiologist will give me the final details about weaning off some of the meds. Pretty stoked about that. am_Unition - shout-out, as promised.

It's been two weeks of on-and-off storms, nine severe weather warnings, and humidity sometimes isn't above 80%. Parts of the country went from hydrological drought to high risk of flooding almost overnight. I've been caught in a storm that transformed streets into streams and saw lots of scud clouds dragging low to the ground while taking shelter at a bus stop. The whole thing passed overhead in twenty minutes.

Speaking of which, I seminar'd on computational physics with my peers at the meteorological institute, and they told me afterwards we might have a tornado hotspot developing in southern Poland. There's a lowering between the Carpathians and Sudety mountain ranges, which makes it easier for storms to move northward while adjacent elevation makes leeward masses of air rotate. Since CAPE seldom exceeds 2000-2500 J/kg, any helicity is unwelcome news (the non-exact intuition is that it's easier to spin-up small than a massive storm). Mechanism-wise, it's pretty similar to one going on in eastern Colorado:

The phenomenon isn't new, but it's likely to get worse around here. Frankly, I'm not too worried about tornadoes and such. It's the flooding, which we're notoriously incapable of handling, that concerns me.

We have presidential elections this Sunday, and I hope it'll finally begin the process of taking the rule away from PiS. Rafał Trzaskowski seemed like the best candidate for the last few years, and it's a pretty close call in the polls. (EDIT: Whoops, made a typo in his name)

I've got the green light from the chemistry department to do my degree on reduced semester quota, which roughly means the senior year will take me four real-time semesters. In autumn, I will only be taking one course, though it's a big one: inorganic chemistry - 6 straight hours of lab and 2 hours of lecture/instruction per week. Do I need that? Not the paper, but my work can absolutely benefit from going through this stuff thoroughly, having instructors and other students around helps a heap. Also, in my neck of the woods, the line between chemistry and physics is sometimes nonexistent, at least unless you feel like being an obnoxious pedant, so there's that. Plus I'd lie if I said it's not fun.

I went back to reading some books from the high school canon. Unsurprisingly, The Trilogy turned out to be a lot more enjoyable if you don't have to rush through 700 pages of archaic Polish prose per volume per week because a frustrated teacher screeched so. There's a lot to appreciate I missed earlier, and it was honestly a joy to revisit. Translations exist, but that's about all I can say for them. Parts I read at random seemed dry and a tad too literal, though IMO that's still better than if the translator decided to make it all 'ye olde' for the hell of it.

What'd you recommend from your country's canon?