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I am one of those who made through the hoop of first and second rounds with the most horrid of CVs, still cant believe I got the job. Extremely happy that I did, I was told later that the resume I submitted was the worst one by far, but the person (ie. Me) was the best applicant, which I still consider funny yet depressing.


Do you have any issues with mold after air tightening the house? Here in Finland pretty much every house needs constant airflow/intake and the houses built to breathe to fight against mold. Im curious if youve had any issues, especially due to living closer to the tropical zone.


The problem is solved, barring serious complications with your home's envelope, with mechanical ventilation systems that give you control over how and where air is being exchanged in your house, while filtering it as well. That's assuming your building envelope doesn't have any serious issues; if water is leaking into wall assembly because of a poorly installed roof or gutter system, for example, no amount of ventilation is going to keep things from rotting away in a few years.

Anyhow, although leaky houses can help deal with moisture, that's pretty much an incidental effect. Leaky homes also comes with significant expense in the form of heat loss, worsened indoor air quality, pathways for bugs to enter the home, etc. There's a reason why we've been moving towards ever-tighter houses, even with the upfront costs and effort required for air sealing, insulation, and mechanical ventilation.

In the GP's tropical climate, I'd expect that humid air leaking into the house does very little to actually dry out the wall cavities; if anything, there's a good chance that those leaks would do the opposite and support any mold growth.


When I got my basement damp-proofed against a nasty mould problem there were three options for how it could be done. In increasing order if effectiveness, they were: 1) they could re-plaster with a sealant; 2) they could mount plastic stand-off sheets to the wall with plasterboard covering; 3) they could air-tighten and install a positive pressure system.

So PPSes are sold as a damp prevention mechanism; as long as you install one when you air-tighten it's doing the job that natural airflow would otherwise take care of.

Also worth noting: each successive option added a zero to the price.


He won't because it's Thailand. The air inside the house won't be significantly warmer than outside for a prolonged period of time. Not so in Finland.

Your best option is a centralized or decentralized automatic ventilation system with heat exchanging and humidity control. On top of that, the better the insulation the less the air is cooling down near walls/windows and the less likely the humidity is condensing into water causing mold. And then last, the less humid the air inside the house is, the more it can cool down before condensation is happening - so keep the humidity low not only with automatic ventilation but also by making sure to not cause humidity by cooking, showering (and breathing, haha) and if you do, air out for just a few minutes.


What do you mean by humidity control? a central one?

I am not saying you don't need one, but here in Sweden modern houses do not use humidity controls and are still air tight and mold free, maybe at the cost of letting more air and energy be swapped. Older houses have local vents at the baths which are humidity sensitive and will blow out excess humidity quickly, again at the cost of wasted energy.

I suppose that controlling humidity centrally will somewhat save energy, but at what cost and complexity?


Well, unless you stop breating, showering, cooking, keeping plants indoors, etc. you will have to somehow moderate/control the humidity as it will grow over time until the dew point close to walls/windows or other cold surfaces is reached.

The reason why houses in Sweden can be mold free is because people get taught that they need to air out their house on a regular basis. And if you look it up, it tells you to air out not during noon (even though it's warmer so you lose less energy) but in the morning and late evening - specifically for humidity control.

So...

> maybe at the cost of letting more air and energy be swapped

Yes, exactly that. But since we are in the context of air pollution, opening windows to air out isn't a great idea. That's why I mentioned an automatic ventilation system (which pretty much always contains filters).

> Older houses have local vents at the baths which are humidity sensitive and will blow out excess humidity quickly, again at the cost of wasted energy.

Not only that, fresh air will also be sucked in from somewhere else outside - which then again brings the air pollution inside.


All new houses here have mechanical ventilation, usually with heat recovery and heat pumps but without filtering (excluding the heat pump's coarse filter for dust).

I got curious and read a little, it is generally accepted here that higher pressure in the house can actually lead to mold, maybe because there is no moisture control and it is expected that some of the moisture generated in the house will be driven into the walls, probably assuming the walls are not perfectly sealed. On the other hand air pollution in Sweden is a non-issue, except maybe for a couple of streets in Stockholm.


Yeah that makes sense - if you have clean air then why would you need to filter. :)


Ideally you would have a an air tight house with a mix of interior and exterior insulation based on your min/max temperature deltas and their dew points to keep the sheathing from being too cold


That alone is insufficient. Think about the bathroom: the air will be hot and very humid. The walls would have to be way too hot to have a dew point that isn't reached when then hot&humid air cools down at the wall.

So you are left with reducing the humdity by airing out in some way (with windows, with a very non-airtight building, or using automatic ventilation). Or, of course, you can use a dehumidifier.


There is also significant cases before and currently in South Korea, namely illegal immigrants working at farms with nigh-slave labour conditions and factory workers in Samsung/Hyundai etc large multinationals


US farming is rife with indentured servitude / slave conditions, in cooperation with ICE and law enforcement


I like how US federal overtime laws specifically exclude agricultural workers.

I cannot imagine any reasoning to do this other than to take advantage of farm workers that are poor and probably do not know English.

So politically, the nation wanted people to have a minimum, albeit pathetic, pay to quality of life at work ratio. But even then, it was okay to explicitly screw at least one tribe of people. And entering 2023, there is still no political impetus to fix this.


Everyone gets screwed commensurate to their organized labor power. Industries of "illegal" immigrants have the least leverage, and that's reflected in institutional legal frameworks


Not 100% sure what you are implying? OP seems to be not from Qatar (notorious for being a modern slave labor economy) and in turn implies a good worker/emplyer relationship. Quite a few people from poorer countries seek better conditions and employment elsewhere for understandable reasons, whats so wrong in this case?


I'm not implying anything, I think I was pretty specific.


But can you see how your comment is unfortunate giving the context of the discussion?

We all saw the context of OPs use of words, so I have no idea what it is that you were trying to add to the conversation.


No, I don't. I tried to point out that the beginning of that sentence is triggering something in me that the writer did not intend but that jumped out at me anyway. Whether you feel that that contributes to the discussion or not is not my problem. The same could be said for your comment, and yet, here we are. What strikes me is that just pointing something like that out would result in a barrage of comments all pointing out the same thing which I had already pointed out in the original comment: that I realized that it wasn't meant that way.


It’s not just you; I grimaced at the wording on first read.


Thanks for that vote of support, I haven't ever seen such an idiotic response to an innocent remark on HN before. I'm still confused about it, it's as if people read the first 4 words and not the rest of my comment and then decided to have a pile on orgy.


Are there any suitable alternatives for OpenWRT? My huawei 4g router that i use over sim connection does not support OpenWRT or Tomato unfortunately...


Easy, get yourself a OpenWRT router, Xiaomi AX3200 is perfect, you need to flash it but there are many howtos. Then, use Huawei as Modem, connected to LAN port. If the Huawei has Bridge, great, if not, Double NAT but you get to control everything on OpenWRT.


While i understand the rationale, ive come to question if "fighting fire with napalm" is such a good idea, from ethics perspective. Is it not a duty to not fall prey to indulge in mass killing even if it may seem justified by the barbarity of the opposing side?


It’s easy to question the decision when you’re not responsible for making it. When you’re not responsible for your soldiers’ lives it’s easy to talk about ethics. Invading Japan would have killed tens of thousands of US soldiers, easily. When it comes right down to it, you’ll always prefer the option that’s spares more of your countrymen than the enemy (who started the war against the US.) That’s perfectly ethical as far as I’m concerned - as ethical as anything can be in war.


That is true. I was not there and im of a completely different world. Well, to be honest i ended up agreeing atleast partly too. For context im from europe, and a small country arrayed against a historically and currently aggressive and strong neighbor, aaand i was conscript officer in charge of a few hundred men total. Believe me that im not that detached from this question, however my concience about bombing civilians is also quite conflicted but heavily leaning towards the Geneva Conventions.

In conclusion; no, i dont agree that it was be "perfectly ethical" or even simply ethical, but rather a neccesity born of the lack of efficacy in the firebombing campaing. And yes, a top-down hierarchical militant society like imperial japan of the time would not have surrendered without significant show of power, of imminent destruction, demonstrated. Im personally more convinced that Hirohito only issued the decree to surrender unconditionally due to the fear of imminent destruction of the capital, since a military society would always expect an attack on the command structure.


Allied casualties were expected to be in the high hundreds of thousands. (https://en.wikipedia.org/wiki/Operation_Downfall)


It is a duty to make mass murder stop in the most efficient way possible. The Japanese would not have surrendered for anything less than what happened to them, so this was proportionate and reasonable violence.


User or component safety? I think in general electronics do not require much in the way of user safety (Ofcourse I exclude power electronics and other high-energy systems) beyond how to properly use measurement devices. Component safety, eg: the art of not killing your semiconductors is another beast entirely


From Wikipedia's "Electrolytic capacitor" article:

"Applying a reverse polarity voltage, or a voltage exceeding the maximum rated working voltage of as little as 1 or 1.5 volts, can destroy the dielectric and thus the capacitor. The failure of electrolytic capacitors can be hazardous, resulting in an explosion or fire."

Even a small one could take somebody's eye out if they happened to be close to it when it failed and not wearing eye protection.


Even low power components can do things that could hurt you if you do something wrong with them.

When I was first playing around with electronics as a kid using kits and individual components purchased from Radio Shack I once put an LED directly across the terminals of a lantern battery.

The LED exploded sending little bits of plastic flying off at high speed. They all missed me, but if I had been in a little different position when hooking up that LED my lesson in the importance of using current limiting resistors with LEDs could have been punctuated by a serious eye injury.

I'd say that a paragraph when each component is introduced covering what bad things that component can do if you exceed its voltage, current, or power limits would be a good idea even if the course is only dealing with low power systems.


In Finland there are many roads that are extended and maintained as alternative "airfields", mainly for purposes of national defense but also as emergency landing sites for civilian craft


Heyo Kicks! Long time user, love it. One feature would be nice, a possibility to change background colors and such. My eyes cant seem to adapt to the deep blue behind white and i get a headache from it sometimes

Wrong place to put in a ticket i know, but love the project!


If you want to send me a color palette, I'd love to try this! kicks at kickscondor doot com


Thanks for the reply! I'll send you a message once I come up with something palatable (no pun intended)


What an intresting but sadly somewhat common story. Thanks for sharing! Im a undergrad electronics student so basically a world apart, in terms of skill and department, but this is one of the reasons i do not wish to pursue academia and instead focus on intresting jobs


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