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InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)SA
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2
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193
Joined
2 yr. ago

  • This will work, in theory, and if you're willing to use a lot of water. It's probably a bad idea.

    Heating one kilogram of water by one degree Celsius without phase transitions (freezing/melting, evaporating/condensing) takes 1 kilocalorie of energy. That's roughly 4 kilojoules aka kilowattseconds, or 0.0012 kWh.

    Thus, to get 1.2 kW of cooling, which is about half of what those tiny portable air conditioners promise, at a 10 degree temperature difference, you'd need 100 liters of water per hour. If water costs $0.40 per 100 liters, and electricity cost $0.40 per kWh, an air conditioner (using about 0.4 kW of electricity to pump 1.2 kW of heat) will be a lot cheaper, and that's ignoring the power you might need to run the pumps and fan on your solution (all of which you get back as heat!)

    Unless the water in the loop is below the dew point, you also won't get any dehumidification. This is actually more important than cooling, and a big reason why air conditioned rooms feel so much better (sitting in the shade in 40° C dry weather would be unpleasant but fine, at 100% humidity, it would be reliably fatal regardless of fitness).

    If you're building new, look into:

    • proper insulation
    • insulation and windows that optimize for the right thing for your climate (in countries like Germany, I suspect windows are optimized to let as much heat in and as little out as possible, which saves heating costs in winter and turns apartments into hellholes in summer)
    • passive cooling paint and panels - I don't know if they're commercially available and in a practically usable state yet.
    • solar to power the AC
    • swamp coolers aka evaporative cooling (the split kind that evaporates water outside). Downside is they use water (which actually is lost - evaporated), so if you're in a drought prone area where water is restricted or expensive they might not be the best choice. Also, it has to be actually dry (low humidity) when it's hot. Get actual, local climate data, not gut feeling. Check if there are commonly used commercial solutions, possibly combined with actual A/C (very common for industrial scale setup, not sure if common for home setups).
    • regular air conditioning. I'm assuming you're trying to build a house to live in, not an art. Economies of scale mean that going with suboptimal but standard solutions almost always beats custom hacks. If you have the same brand of AC as everyone around you, the repairman will know how to repair it, will have spares, will know how to design it so it is sufficient for your house, etc. - if you build something yourself, you will be the only one who can maintain it.
    • ceiling panels - these cool the room by running cold water (generated using normal A/C heat pumps) through pipes/panels under the ceiling. The upside is that they also remove radiant heat, the room feels about two degrees colder than it is thanks to this (look up "wet bulb globe temperature" for a rabbit hole). The downside is that they can't dehumidify and actually stop working in high humidity when you'd need them the most: if you run water colder than the dew point through them, it'd condense and start dripping all over your stuff, so it shuts down or limits how cold the water can be (and thus how much it cools). Consider them as an addition only if they're common and installers are familiar with them.

    In the end, you're building a new building, so you now have a chance to do everything right using modern but already proven technology. I wouldn't DIY anything critical and hard to change like this. Remember, you're trying to find the best (likely: cheapest in the long term while meeting your reliability requirements) solution that will solve your problem. There's a very high chance that's simply "add more A/C and solar according to what's locally available". And that's fine. There's nothing bad about that.

    I wouldn't, for example, try to build with different materials than locally common, even if those were "better" by some metric. That often doesn't give you a better house, that gives you a unique house, and unique can be a nightmare.

  • Absolutely not worth trying to fix a plug like that (instead of replacing the plug with a new plug) IMO. Where would you even start? You'd essentially be trying to make a new plug from scrap and at best creating something inaccurate that'd be unreliable and likely wear or outright damage anything it's plugged into.

  • What glue did you use?

    I made a similar repair but with a smaller break using superglue (cyanoacrylate), held perfectly. However, I reinforced the broken part with a piece of a plastic card glued to the side. Consider doing that if this doesn't hold.

    I'd be concerned that the rough surface you seem to have now will be hard to clean and may get very nasty. Other than that, if it works it works.

  • From the misleading snippets I saw, my best guess was that someone (either through incompetence or malice/desire for a better story) turned "hacked a smartwatch and listened in on an after the fact meeting" into "tracked a submarine".

    Tracking a submerged submarine through a smartwatch is bullshit.

  • Generally people aren't maxing out their download bandwidths, so if you have peers and are below your upload limit, the bottleneck is either your computer (e.g. disk, CPU), your network (e.g. WiFi, Internet), or the peering between your ISP and theirs (e.g. Deutsche Telekom).

  • Sounds pretty awesome. Respect for all sides, even people who take the flag code really seriously get a special area. Could use some more booze, a mortar shooting range, a proper all-gender swinger club, and generally a lot more cyberpunk ambience, but it's a good start.

  • The baked in garbage is a result of you using shitty sources, possibly because there are few good sources available and thus you find more of the shitty ones.

    Usually while the movie is not released digitally, only low quality copies are available. Many sites/groups don't bother with those because few people want to watch that.

    I'd just wait for the release. You'll instantly find stuff that's not just clean, but also in a decent quality.

  • Unfortunately, due to lack of clarity (and lack of clarification), many DPAs (privacy regulators!) have explicitly declared the "pay with data or money" model OK.

    Google may have been one of the very few cases where a meaningful fine was given. For almost everyone else, blatantly breaking the law paid off big time.

  • GDPR has turned into a joke due to lack of enforcement (partially due to Ireland serving as a "privacy violation haven"). For years saying "no" to tracking required many clicks, and I don't know of any companies that received penalties that would exceed the extra profit they made from that. Even blatantly illegal schemes where not agreeing locked you out of the web site usually didn't get punished.

    Many sites still don't get proper consent, and also check out what many consider under "necessary" or "legitimate interest" cookies/tracking that you get after you said no. In hindsight, breaking the law was the only smart thing for sites to do, and many did.

    Then, this bullshit. GDPR and the original explanations were pretty clear that the intent was to ban this kind of "agree or pay" scheme, and here we are. Of course they'll do it, because they win either way. Either it's considered legal, or there are no meaningful consequences...

    This is not the only thing where the EU moves at a snails pace, ignoring that industry is making a joke out of well intended regulations. Many praise the EU for making Apple adopt USB-C. What they miss is that the attempts to standardize chargers started in 2009, when most manufacturers, Apple included, promised to agree on a standard, and then the EU let Apple dance on their nose flying loopings though loopholes for 14 years. That's right. Apple introduced Lightning after they were supposed to standardize, and the EU let them.

  • The big question (which is disputed, even among DPAs) is whether offering this makes it OK to offer it via ads with tracking without a way to opt out for free.

    Doing "tracking ads or no service" is illegal - the consent isn't "freely given" and thus invalid, so they'd be processing data without consent or other valid justification. Some argue that with such a model the consent is freely given...

    Either way, the max fine will be 4% of revenue, which means nothing if doing it this way doubles revenue...

  • Well, now we'll see if the EU finally pulls its head out of their ass and clarifies that no, "consent" gained this way isn't "freely given", or if they legalize the practice and make GDPR even more of a joke.

    Various DPAs have taken different positions on this, unfortunately encouraging this practice.

  • The problem is that they can't tell who is who, nobody wants the extra hassle of extra security, and in the end the companies have to deal with the fallout (customers asking for account recovery, compromised accounts being abused, ...).