skillissuer
@skillissuer@discuss.tchncs.de
moving from lemmy.world/u/skillissuer
- Comment on Looking for the spelling / translation on a certain Polish word 3 days ago:
This only works well for fast things tho
- Comment on Looking for the spelling / translation on a certain Polish word 3 days ago:
the word you’re looking for is “jedzie”
strictly speaking polish (and all slavic languages i think?) doesn’t have a verb like “go”. you have to specify, you can ride, drive, walk, sail, swim, roll and so on but you can’t “go”. that verb (which means “[there it] drives”) would be usually used for land vehicles, for boats we’d use “płynie” (“swim”, “sail”, “flow” depending on context)
- Comment on Why do so many UK electrical sockets have an on/off switch next to them? 4 days ago:
i understand that it’s remnant from times when fusebox wasn’t a thing and it was an attempt at protecting ring circuit, that’s all. it makes little sense
- Comment on Why do so many UK electrical sockets have an on/off switch next to them? 6 days ago:
fuse is in plug and accessible only when plug is disconnected
it’s also a very weird thing because fuses are supposed to protect what is downstream of them. so effectively fuse in plug protects cord and appliance only, not the wires in the wall. there’s breaker box for this
- Comment on Why do so many UK electrical sockets have an on/off switch next to them? 6 days ago:
eastern block solution to copper shortages was to wire houses with aluminum instead of copper. this avoided all that bizarre bullshit that brits do, and in principle it’s a good idea since aluminum is used for big time power distribution as well. this worked pretty well until it was noticed that under some conditions hot spots can form on connections over time, requiring replacement of connectors. it’s still legal to use aluminum wires in some places, but copper is more common now
- Comment on Why do so many UK electrical sockets have an on/off switch next to them? 6 days ago:
at least in part it’s an end result of decades of crud and tech debt, so to speak, accumulating in british power grid and home wiring. they do it this way because otherwise it won’t be safe. continental euro home wiring usually has thicker wires, residual-current circuit breakers and no ring circuits so we get away without fuzes and switches. sometimes we do have ring circuits kind of thing, but not in house wiring, instead it’s in medium voltage distribution grid, and it’s sized so that it can serve most of loads after single failure.
explanation
in normal state, medium voltage line (like 15kV, 20kV) might branch out in rural terrain from substation to two or more places. in case of single failure, mildly common after storms, everything downstream would be down. instead, to increase reliability, every few km there’s a switch and some of the far ends have line between them that is usually disconnected. in case of single failure, damaged segment is cut off, and the far end of the loop switch gets closed. this way power is delivered the long way around the loop, allowing for repairs of the damaged sector in the meantime. this also specifically avoids some of problems of ring circuits especially in situation when some lines might be damaged.
- Comment on What is the most toxic instance of Lemmy? 1 week ago:
they are remnants of explodingheads that stayed on lemmy, so you’re spot on
- Comment on A totally normal figure of cancer signaling pathways 2 weeks ago:
It’s still up, just remove trailing dot from DOI
- Comment on What's Rednote and why is "everyone" talking about it? 2 weeks ago:
instagram/pinterest-ish chinese app that was promoted on american tiktok as a possible alternative after ban. it has actual chinese users and they weren’t impressed when american transplants wanted everyone to speak english
- Comment on A totally normal figure of cancer signaling pathways 2 weeks ago:
text looks sus too
- Comment on diy qfh antenna 4 weeks ago:
now that i’m thinking, you can make loop antenna with circular polarization and mesh reflector with closer spacing that would be even more compact and that would have more of one sided donut shaped radiation pattern, which would be probably more suitable for your application, but it’s guaranteed to have different impedance and so would require simulation
- Comment on diy qfh antenna 4 weeks ago:
wait, do you want to use it at 140-ish MHz? these antennas will be quite sizable no matter what you do. you can make cross-dipole yagi but with loops instead of straight elements to make it a bit more compact. again, one director will be fine. take reflector + driven element from there www.robkalmeijer.nl/techniek/…/index.html and first director from there iw5edi.com/…/directional-antennas-cubical-quad this will get you antenna looking roughly like a cube with 50cm side. i don’t think you can get much more compact
- Comment on diy qfh antenna 4 weeks ago:
wood is fine but make sure to waterproof it if used outside. use as little as practical, performance can change with weather unlike with plastic. no metal fasteners either as this will have weird effects
do you want it to be compact when deployed or compact when stored? you can also make crossed dipole yagi, you probably want it to be rather nondirectional so one director, driven element and reflector would be fine. that antenna is much longer but i think you get the idea www.qsl.net/dk7zb/Cross-Yagi/crossyagi.htm you can also make bifiliar helical antenna but this one again gets a bit directional. you can probably make it shorter than these 5 turns and change pitch too to decrease directionality secwww.jhuapl.edu/…/12-01-Stilwell.pdf you can also make unifilar helical antenna but it needs a big reflector baseplate so it won’t be as compact, it looks like this www.ab9il.net/wlan-projects/wifi3A.html
- Comment on Biblically Accurate Reactor 5 weeks ago:
if it’s too heat sensitive to distill then vacuum distillation is an option, but size of batch won’t matter too hard
if it really can’t be done, then there are ways to make it work without distillation
- Comment on Biblically Accurate Reactor 5 weeks ago:
gotta be some kind of air-free electrochemical setup, i agree
- Comment on Why do people say things like "I didn't do nothing"? 1 month ago:
more common than you think en.wikipedia.org/wiki/Double_negative
different dialects can have different rules about their use
- Comment on Looking for answers 1 month ago:
Pacifism is only good for aggressors and cowards
- Comment on Che Mangione 1 month ago:
(literally writing this from lab) i’m not calling him a techbro because i have some kind of disdain for tech workers, i’m calling him a techbro because he’s chasing unviable or harmful ideas or tech from old scifi that his cult (or at least was influenced by ideas typically associated with that cult) adopted as a part of doctrine. things like cryonics, some sketchy supplements that are supposed to give extreme life extension, or AI and quantum computing (because they think simulation = actual thing, and they hope to achieve immortality with AI). you might start to think that i’m batshit crazy just by explaining it, but i assure you it’s them, and these people will be part of american government really soon. start there rationalwiki.org/wiki/LessWrong
in no place i’m saying “technology bad”, i’m saying there’s plenty of harmful tech being pushed for profit and Luigi went full in in that sector. other than healthcare, that is
- Comment on Che Mangione 1 month ago:
funnily enough luigi would disagree with this exact take
xcancel.com/pepmangione?cursor=DAABCgABGejOMJU__6…
this is because he’s an “effective altruist” which is an ideology cooked specifically to justify current day greed with future charity. also includes bad scifi and cult of AI
- Comment on Che Mangione 1 month ago:
zeroth of all, they were figureheads in large organizations. luigi has none of that
besides, there’s no improvement without criticism
- Comment on Che Mangione 1 month ago:
Luigi is a rich libertarian techbro bordering on AI cultist. he likes Thiel and Musk, he thinks that human immortality is feasible, that AI will outsmart us all real soon, and bought in in a bunch of other tpot/longtermist/ea horseshit hook line and sinker. he also only started caring about state of healthcare industry when it touched him personally. he’s not leftist in any useful meaning of this word
this is his twitter xcancel.com/PepMangione these are his takes: xcancel.com/PepMangione/…/1780863519677940189#m xcancel.com/PepMangione/…/1750041444239434013#m xcancel.com/PepMangione/…/1600875886727016449#m this one is pinned tweet
- Comment on Itch.io was taken down by funko pop 1 month ago:
wait you don’t mean microplastics
- Comment on Since Syria goverment has fallen, do we have any inkling of what will replace it? 1 month ago:
there already seems to be sectarian divide precipitating between shias and sunnis
- Comment on Since Syria goverment has fallen, do we have any inkling of what will replace it? 1 month ago:
Syrian Civil War is over. Now another Syrian Civil War will begin
i somehow doubt that that widely divergent alliance of convenience will hold any reasonable time. there’s a massive issue of ceasefire between SDF and SNA/SSG/FSA or however they’re called now, and it’s not like the latter is a monolith. there is everything from former AQ jihadis to secularists and minorities like Druze
- Comment on Why did Yoon lift martial law if he had the support of the military high command? 1 month ago:
Maybe he didn’t? Power was on in parliament entire time, internet wasn’t cut off, no curfew, no news stations takeover, you know things you can expect in a coup didn’t happen
- Comment on don't be a coward 2 months ago:
if you looked up temperatures needed for aluminum electrolysis,
and then you have to deliver electricity to it, keep it isolated electrically, thermally, chemically (kept sealed), and how do you even make plastics without steel reactors
- Comment on Missing Comments 2 months ago:
are you blocking someone, individually or instance?
- Comment on Give us your best infodump. 2 months ago:
fully channeling energy of this fake tweet rn
i need to howl. that stuff is a catalyst and i need it to stay dissolved, but now it won’t. depending on how badly things will go, it might be impossible for everyone forever to replicate my old results
- Comment on Give us your best infodump. 2 months ago:
it just made three months of my work useless but np
- Comment on Give us your best infodump. 2 months ago:
(is there an offtop thread?)
