almost certainly both will damage print. something like lighter fluid (or hexane) won’t, but it should loosen glue. trying to dislodge sticker with a razor sometimes works even better
some people suggest vegetable oil, but then you’re left with oily fabric
this also happens with dc once voltage is high enough
It’s easier to see that this circuit is rather symmetric when you redraw it
Then with both switches closed blue wire (the one in the middle) should only carry small current. If both halves are exactly the same it should be zero
In general when circuit doesn’t include nonlinear components (semiconductors most commonly) you can sum two valid solutions and you’ll get another valid solution. Note that when one switch is closed, current in blue wire goes one way and when the other is closed, in opposite way
50mm^2 for 125A, just under 8mm diameter solid copper rod if it was solid copper rod. but it’s stranded so it’s a bit bulkier than that, bundled five per cable. it adds up to some 4cm in diameter
split phase is 2-phase system but everyone else uses 3-phase distribution. in reality americans also use 3-phase distribution, this is where 207v 3-phase comes from (it’s 120v phase to neutral)
the entire point of three phase circuit is that you can split it into single phase circuits without using too much wire. usually block will be wired so that 1/3 of flats is connected to one phase, but if you need to power big loads like ag tools or something like concrete mixer three phase supply can be done (415V these days, there’s upward shift in voltage)
in EU there are really only two standards. for single phase loads up to 3.8kW, regular 16A plug is sufficient. above that, 3-phase 5-pin 32A plug (most common of them) is used which can deliver up to 23kW. there are common variants of 3-phase 5-pin plugs rated up to 125A that can deliver up to 89kW and uncommon up to 800A variants that are also part of the standard, but it delivers up to 0.57MW and it’s a bit silly
i’ve found 1999 version of iec 60309 standard and biggest connector defined there was 250A. actually i wasn’t able to find vendor for currents higher than 125A, but for 125A, standard expects 16 to 50mm^2 cable and for 250A 70 to 150mm^2. lower ends of these ranges would be insufficient for full load and would require limiting current appropriately. maybe higher currents were latter additon. either way 32A is almost-standard and anything above that is in some way custom job
modern smpss can take anywhere from 100 to 250V input so you can use them with either and any voltage inbetween. older ones had a switch between 240v and 120v modes (rectifier vs voltage doubler)
blame edison for that
We sorta do have universal mains connector (ignore for five minutes that there’s like 5 variants)
I’m guessing the walls are retaining some heat.
Guesstimate your own numbers, but the way my flat is built walls have heat capacity some 150x more than air inside. (reinforced concrete building, walls/floor/ceiling counted as half if shared with other flats) You will need to run a lot of air through, at at least couple C temperature difference, to make a dent in that
you’ll be lucky until you aint, then you’ll get banned for ban evasion
grey - 🇬🇧 english (traditional)
gray - 🇺🇸 english (simplified)
not sure but excessive caffeine can definitely make it worse
i mean technically it’s possible, you can show someone lab i guess there’s nothing extremely dangerous, not sure how it works legally, but the process is rather boring and we’re talking about a place that stores literal tons of piss why would you go there
what kinda drug tests are we talking about here? i’m talking about the kind where you send piss sample and then get result, or in fact hundreds of results. you need to make sure all your paperwork is complete and lab is certified and so on because someone might say that results are legally invalid
the process is a bit more involved, samples need tracking and monitoring and storage and preparation, and if it’s like you describe then guy’s sketchy and won’t survive audit
to run drug tests you need six figure range machine (when new), maybe 5 euro worth of plastic (spe column, eppendorfs, pipette tips), couple ml of acetonitrile and maybe 5-7 min of machine time on average. it can run 24/7 and if you find anything you can do more detailed analysis. bro’s not earning shit, he’s paying down the machines (and maintenance)
e: no way i’m nerd-sniped this easily. you can get hplc-ms for 90ish grand, add milliq water purification system, solvent recycling system, lots of fridges, a couple of laptops and company server and various other equipment and we’re probably in 200k range, excluding lab building itself. then you’ll need, say, $5 of consumables per sample ($2 per spe cartridge), so we’re talking about $40 revenue minus material costs. wages: you’ll need something about four people to run this thing at full tilt, two lab workers, one (?) clerk, half time driver and half time it guy, if you pay everyone 15k/mo then you need to go through 100ish samples just to pay wages not counting rent utilities and debts. but you can probably run 200 per day per machine, 300 if pushing it, so the main constraint will be logistics. because most of lab is in place then adding another hplc/ms will be only 90k. 300 samples per day print 9k per day, if you can get these samples. that’s probably why he’s expanding
Shadowban is when you can see your own post/comment but it’s unsearchable or otherwise unreachable by other people. milder variant is comments hidden by default, some of them look like deleted by mod but it might be automatic. the point of shadowban is that you don’t know about it. this is something different, why it happened to you idk but there is some trade in old accounts for spam purposes, maybe that’s why
i’d still try hydrocarbon solvent first, because it’s least likely to damage it