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evranch

@ evranch @lemmy.ca

Posts
2
Comments
181
Joined
3 yr. ago

  • ‘We should have better answers by now’: climate scientists baffled by unexpected pace of heating

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  • steel which perfectly absorbs heat. No, the best solution is to use aluminum.

    Aluminum is far more thermally conductive and makes both a far better radiator and absorber of heat. Ultimately it's a coating that does the absorbing though, as shiny metal reflects IR regardless of the material. Source: I work with this stuff

    Light coloured or reflective roofs do make sense though and that's why traditional homes in most hot climates are painted white.

  • JD Vance falsely accuses Algerian Olympic boxer of being transgender & weirdly blames Kamala Harris

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  • Just try it the other way. Random face punching today, years of medical and psychological treatment later!

  • 'Zionist-free zone': Israelis are increasingly unwanted at global tourism sites

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  • This word, forced, means that as individuals they didn't have a choice. Why punish them rather than the ones giving the orders?

    You could claim that they should refuse the orders, and this the responsibility is theirs, but in a country with mandatory service this does not usually play out well for you.

  • Germany’s doner kebab becomes symbol of angst over rising costs

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  • Interesting here in Canada we call it Donair and it's made from spiced meat. Lamb, beef or chicken. Then there is tzatziki sauce or garlic and hummus, and pickled vegetables as well as regular ones.

    We also claim to have invented it, the "Halifax Donair" yet it's sure similar to Turkish shawarma and Greek gyros...

  • Removed

    "Don’t replace the culture war with class war" pleads British columnist

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  • Well nuts I was considering Ireland as a nice place to flee Canada for. Shame to hear that they're doing the same to you. I know there's a demographic issue but I don't see why they couldn't have made the countries livable enough that the people living there could afford to have children, instead of importing people en masse from regions with little education.

    We are just creating another demographic problem anyways as at least here all of our migrants are suspiciously young working age men. We don't see many families "fleeing regions in conflict" which seems very odd, doesn't it.

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    "Don’t replace the culture war with class war" pleads British columnist

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  • I should probably clarify what I mean by that. Unlike most countries, most of Canada is probably best described as "a barely habitable hellscape"

    Even the pioneers relied heavily on existing supply chains, and in most regions aside from southern BC and Ontario the natives lived an unenviable hand to mouth existence.

    So while working harder for the same cheque is a bad idea, if everyone stops working at all (which feels like it's on the brink of happening, some days) the collapse of our society actually means losing our ability to survive in a country that actively wants to kill you on most days.

    I live way out in the country in a mostly self reliant community, but the amount of material and energy we need to bring in just to survive always worries me.

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    "Don’t replace the culture war with class war" pleads British columnist

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  • Looks at what happened in Canada too, we had big structural problems with our economy so our government dumped a huge volume of immigrants into the country, almost entirely from a group known to not integrate well and who share little values and culture with the existing citizens.

    Now everyone blames the immigrants for everything. Success! And wages have also been depressed, and housing and rent prices elevated. The rich get richer and the poor get a scapegoat. Everyone... wins?

    And there's literally nothing we can do about it, except effectively the whole country has taken on the "lay flat" movement as a protest after Covid pulled the mask off the villain. Very few working class people put any effort into their work anymore, figuring to collect their check but not generate any wealth for the robber barons.

    The trouble is we will burn our country down while we do it, because ultimately some work does need to be done to sustain our society.

  • The hunt for the most efficient heat pump in the world

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  • Oh I think I know what you're talking about, abusing a minisplit by idling the inverter back too far. Effectively you have a hugely oversized condenser for the tiny flow, under the right conditions like a cool night you can get ridiculous subcooling.

    But COP is irrelevant in this case because you've derated the actual BTU to near zero, you aren't moving any refrigerant.

    Also yes this will kill your compressor because the minimum speed is set where it will get enough oil flow. Run it too slow, and it won't pick up oil and eventually seize up. You also could end up running the suction in vacuum which is also hard on compressors.

  • Shampoo

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  • Actually come to think of it, I don't think Pert is actually gendered. But everyone knows it's a "man's shampoo", because it isn't actively marketed as a "women's shampoo"... Yeah, pretty stupid, isn't it.

  • The hunt for the most efficient heat pump in the world

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  • I saw 5 for air-air and was impressed. Then I see SCOP? Oh please. Why not change the scale again to make sure nobody knows what a good value is. Just like SEER on an air conditioner.

    SCOP varies depending on environmental conditions!

    Real COP or go home IMO. Watts out/watts in, no fudging numbers to confuse consumers again.

  • The hunt for the most efficient heat pump in the world

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  • I designed my heating system around a fairly efficient non-condensing NG boiler that takes 40W for the fan. I can run it and the circulators off my battery bank no problem, and handle a sustained power failure. But only because of the natural gas.

    I've been integrating a water-water GSHP into it to provide summer cooling and a supplemental heat source from my solar panels. It works well, but in my climate (Rural Canada) I would be insane to completely remove my gas boiler IMO. Heating demand is just way too high on the sort of days where the power goes out. I've been working on plans for a wood boiler but insurance has put their foot right down on anything that burns wood in the last couple years.

    Here in Canada we can't get lithium at a reasonable price so I have 10kWh of lead-acid (which as you know is actually 5). Doesn't go very far on a cold winter day with 4 hours of sun and snow on the panels!

    On the upside I haven't had to hook my generator to my house in years, I'm really happy with my "grid-independent" system.

  • The hunt for the most efficient heat pump in the world

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  • Double would be a COP of over 10. That's a stretch for an overbuilt GSHP and not even slightly feasible for air-air.

    High COPs are usually easy on a compressor as they represent low compression ratios and low differential temps. For example I can hit around COP 7 in cooling on my scrap heap GSHP, with an evap temp around 10C and condenser temp around 20C. That's a high side pressure around 100 psi and only 30 psi of differential, "barely working" as far as the compressor is concerned.

    The only way I know to get high COPs is to have an oversized condenser and a way to get your refrigerant below ambient, like evaporative, ground source or overnight radiant so you can get the compression ratio down, unless you know a secret in which case I'm not afraid to burn out a compressor or two trying it out!

  • Shampoo

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  • If the man gets his hair really dirty, like farm dirty with diesel and moly grease and itchy chaff bits, then it means it probably doesn't have what it takes to do the job.

    My wife bought endless shampoos, I tried them for sport and none ever impressed me. Our hard water laughs at fancy shampoos and soaps.

    I always told her to forget it and use my big jug of Pert. A classic that says something on the back like "Pert wasn't designed to waste your time and money. Pert was designed to get your hair clean" but she was sure there was something wrong with it because it was only 5 bucks.

    Finally one day she gave it a try and has used Pert ever since. It made her hair smooth and soft, it even washes moly grease out and it smells "fine", men's shampoo is the winner IMO

    And now my shower is so tidy with only one jug of shampoo

  • Shampoo

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  • Out here in hard water country we just call that "Dove"

    Seriously if you're looking for a soap that just plain works in ANY water and doesn't leave your skin feeling like it shrank a size, a good old bar of Dove is the answer.

  • Shampoo

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  • It had better at least be blue.

    Lol, jokes on us they're all blue, cobalt or not

  • GPL violation follow-up - some bad news and some good news

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  • Great to hear this story of success. That plus

    $266.99 per probe for the original proprietary one

    Reminds me of Schneider's stupid proprietary dongle for programming their PLCs. It's just a CH341 in a funny shaped case that fits into the funny shaped slot on the PLC, where it plugs onto an ordinary 0.1" pin header to talk logic level serial.

    Plus it has a custom USB ID of course. Probably costs $2 to manufacture, sells for almost $300 as well.

  • 'There Are No Kings in America': Biden Blasts Supreme Court, Issues Dire Warning After Immunity Ruling

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  • what's the purpose of holding the most important job in the world, if you constantly have to worry about going to prison? Ridiculous.

    Big yikes there. The purpose is to serve the American people.

    The President is not the King of America, and its easy to not have to worry about going to prison - just don't commit crimes. Before Trump, the question wasn't even relevant.

  • Vandals in Austria behead sculpture of Virgin Mary giving birth to Jesus

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  • The interesting thing to me regarding both power and blasphemy is that by the fact that it was on display in a major cathedral, those in charge have already given it their blessing. Anyone calling "blasphemy" only looks like a fool.

    So you have these "traditionalists" wanting to drag the Church backwards. But due to the hierarchical structure of the Catholic Church that's just not how it works. Church leadership has made significant progressive strides over the last decade, leaving people like this Tschugguel with only impotent rage and vandalism as their options. And as you state this only adds new context to the art, giving it more power and ensuring that their regressive goals are not taken seriously.

    Meanwhile the Evangelicals have gone absolute nutters, I never thought I would see the day where the Catholics were the "progressive" church. But they play the long game, and have always changed along with society over the millenia.

  • Vandals in Austria behead sculpture of Virgin Mary giving birth to Jesus

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  • The work had drawn criticism from some Catholics, who said it was blasphemous.

    I won't deny it's kind of an odd idea for a sculpture and clearly designed to create controversy, but claiming that it's blasphemous just confirms the fact that they don't know the definition of the word. It just depicts a defining moment in Christian history, whether you like the aesthetics or not... The Catholic church has definitely celebrated weirder things.