So I'm planning out a bathroom remodel and part of that is replacing the vent fan because currently mine is just venting into my attic (no bueno). I know normally bathrooms are vented out through the roof but my bathroom is on an exterior wall so I was wondering if I could just vent it out the side of the house. I'm going to be ripping open that wall anyways and I would much rather cut a hole in the side of the house than run a vent pipe up through the roof.
Also I'm in Minnesota if climate is a concern.
I work on equipment that runs off 3 phase 208V but it uses uses a transformer to drop it down to 120V for most of the controls. On this equipment I noticed that there are two fuses on the lines exclusively feeding the 208V side of the transformer and a fuse directly off of the hot side on the 120V side of the transformer.
Isn't the fuse on the 120V side of the transformer redundant? From my understanding, if there is a current spike on the 120V side of the transformer then that will cause a current spike on the 208V side of the transformer and immediately blow those fuses anyways. Is this just a certification thing where that redundancy is required? I'm in the US but this equipment does also get shipped to various overseas locations. Also, while it isn't standard, this equipment is capable of passing a TUV inspection if a customer requests it so I'm not sure if the potentially redundant fuse is just a TUV requirement.
I've been seeing a lot of users from alien.top commenting in various threads (mainly sports) lately. They only caught my attention because they are all flagged as bots and I typically manually block most bots (not all because there are some I like). For every one of them their entire post history consists of 1-2 comments or posts. When I took a look at that instance there is nothing there at all and it also shows no users. The comments look human enough but I guess I wouldn't be surprised to learn that all the comments are LLM generated. Is alien.top just someones LLM experiment or is something else going on here?
So I'm a refrigeration tech with some electronics manufacturing experience. But I've never combined the 2 skillsets so I've been toying with the idea of building a large vapor chamber to cool a computer via direct immersion in a refrigerant. I know its about as far from practical as you can get but it sounds like fun.
Ignoring all of the many many other problems with doing this for now the one thing I'm not sure about is how well the electrolytic caps on the various components would survive. I would need to pull a fairly hard (500 micron) vacuum on everything before I charge it with refrigerant. I know most electolytic caps aren't vacuum rated but I'm not sure if that just means you can't have them operating in a vacuum or if they will immediately pop if you just subject them to hard vaccum period. Additionally while I am planning on using a low pressure refrigerant (probably some R-123 substitute but I'm definitely still working on that part) the components would all still be subject to pressures of up to about 20 PSIG at the high end. Beyond that point I would probably have an active cooling system kick in just for safety sake. I'm not sure how well the caps in particular would survive being immersed in a liquid under 20 PSIG pressure.
Does anyone here have any experience subjecting electrolytic capacitors to hard vacuum or elevated pressure? At what point do they just pop?
So I just went and donated blood again and durring the recovery period it occured to me that it takes quite a bit of work for your body to regenerate that lost blood volume and the actual blood cells. Regrowing that many cells seems like it would be fairly energetically intensive. So how many calories does producing all those new blood cells actually consume? Is there even a way to know that?
While doing some exploration earlier I got a BPC for a Capital Gravity Capacitor Upgrade II.
The weirdest thing is that the BPC isn't completely worthless. Contracts for that BPC still go for a couple million isk which means someone must be buying them and producing capital sized scanning rigs. So now the real question is, who the hell is fitting their capital ship for scanning?
@Fosheze
@lemmy.world