• thedarkfly@feddit.nl
    2143·
    11 months ago

    I checked for others who, like me, are too European to understand the joke: 50°F is 10°C.

  • KISSmyOS@lemmy.world
    1163·
    11 months ago

    Celsius is the superior scale:

    100° is the perfect temperature inside the Sauna.
    0° is the perfect water temperature for a bath after the Sauna.

      • doggle@lemmy.dbzer0.com
        211·
        11 months ago

        Isn’t basing a temperature scale on the freezing and boiling points of water a bit arbitrary in and of itself?

        The reason they are arbitrary numbers in Fahrenheit is because they weren’t considerations when the scale was made.

        • Deme@lemmy.world
          111·
          11 months ago

          Water is everywhere.

          Cooking, weather, etc. You are also water.

          • MystikIncarnate@lemmy.caEnglish
            143·
            11 months ago

            Except that water boils at different temperatures when exposed to different amounts of pressure.

            So this works pretty universally on earth… Near the ground/ocean level (plus or minus a few hundred meters). Once you get outside of that specific condition the numbers move.

            So yes, fairly arbitrary.

            Let’s all switch to Kelvin.

            • SkyeStarfall@lemmy.blahaj.zone
              11·
              11 months ago

              The nice thing about celcius and kelvin is that they’re the same scale, but celcius is just shifted 273.15 units. And it’s more intuitive for humans to work with smaller numbers with bigger relative differences. But yes, kelvin would be a lot better to work with, especially considering stuff like doubling temperature (doubling energy) would actually work correctly in kelvin.

              But if there’s one thing that makes a lot of sense to base temperature enough for human use, I would indeed say it’s water, because all life uses water, we are completely surrounded by it, and it’s super important to nearly everything we do too.

            • Deme@lemmy.world
              4·
              11 months ago

              Sure, but the vast majority of people live in low lying areas and even then it doesn’t shift that drastically. You need to climb a mountain to see the difference when it comes to applications of daily life.

              Although now that I think about it. The same criticism applies to pretty much every definition of temperature that is based on the behaviour of matter. This also applies to Kelvin. Temperature is a property of matter and every type of matter behaves differently.

              • assassin_aragorn@lemmy.world
                2·
                11 months ago

                it can be just as strange to have to think in terms of adjusting for 273.15K for the misleading “freezing point of water” or 298.15K for STP, another arbitrary standard of measurement. Kelvin is no better than Rankine

                This touches on something important, which is that Celsius is based on an arbitrary pressure. It’s based on an elevation that suits the region which defined it.

        • BluesF@lemmy.world
          91·
          11 months ago

          It is, but if you look at how Farenheit was conceived it’s absurdly nonsensical. 0°F is the freezing temperature or some mixture of chemicals, and 90°F is a guess at human body temperature lmao.

          And the freezing/boiling points of water are arbitrary except in that they are used to actually define both scales. They provide easily measurable standards.

          • deegeese@sopuli.xyz
            1·
            11 months ago

            No, 0° was the lowest temperature recorded in the city Fahrenheit lived, and 100° was considered normal body temperature, with the quality of thermometer available at the time.

            It’s quite arbitrary, but ends up mapping pretty nicely to comfortable ranges for humans.

        • force@lemmy.world
          81·
          11 months ago

          Well TECHNICALLY it’s not based on the state change of water.

          It’s based on the formula C = K - 273.15 where K = 1.380649×10^−23 / (6.62607015×10^−34)(9192631770) * h * Δν[Cs] / k where k is the Boltzmann constant (1.380649×10^−23 J * K^-1), h is the Planck constant, and Δν[Cs] is the hyperfine transition frequency of Caesium

          So even MORE abstract and unrelatable

          • ferralcat@monyet.cc
            1·
            11 months ago

            This makes no sense. K is not a constant. Is there a variable in there?

            Temperature is a measure of entropy. It depends on the disorder in a system somehow.

            • assassin_aragorn@lemmy.world
              5·
              11 months ago

              Temperature isn’t a measure of entropy, but the internal energy of a system. Internal energy is the total energy sum of kinetic and thermal and gravitational energy.

              You might wonder how that’s calculated, and the short answer? It isn’t. We rarely look at the actual value. This also goes for enthalpy and entropy. What matters most of the time is the difference in enthalpy/entropy/energy. If you take a look at various enthalpy numbers across textbooks and software and steam tables, you’ll see the value vary significantly depending on what they use as their 0 point. No matter where the scale starts though, the difference between two distinct points will remain the same.

              • assassin_aragorn@lemmy.world
                1·
                11 months ago

                From what I can tell, you’re using definition of the units? In that case K doesn’t equal that equation, but it is in units of that equation.

                • force@lemmy.world
                  1·
                  11 months ago

                  I’m not sure of the semantic difference. When I think “a meter is the distance travelled by light in X seconds” I think m = c/299792458 s, same with Kelvin.

        • blueson@feddit.nu
          31·
          11 months ago

          If you want to be radical, use Kelvin. At least it scaled identical to C so it’s easy to comprehend.

        • barsoap@lemm.ee
          2·
          11 months ago

          Every scale and unit is, ultimately, arbitrary. We all do have a very good understanding of what freezing and boiling water is, though, we don’t have a good intuition of “coldest day in some random place in some random year” is. Then there’s a couple of other common points of orientation: 20C is room temperature, 37C body temperature and thus warm baths and “it’s too bloody hot outside” hover around that (you actually want wet-bulb temperature for that, but it’s still a point of orientation), another point is about 60C which is the hottest you can have a beverage and drink it without excessive slurping. Also a common temperature in cooking as that’s when a lot of stuff starts to denature, e.g. egg white is about 62-65C, the temperature you want to hit for carbonara to not get scrambled eggs.

          Practically everything we deal with in everyday life (short of winter weather) is within that 0-100 range. Which is due, to, well, water being liquid in that range.

      • Venicon@sopuli.xyz
        2·
        11 months ago

        I would like to dump on America for this but as Scotland is in the UK we have some unholy abomination of in between when it comes to our measurements.

    • Resol van Lemmy@lemmy.worldEnglish
      111·
      11 months ago

      I’ve never been to a sauna before, but are you guys okay with boiling yourselves and then immediately freezing yourselves? Doesn’t that seem very painful? Are you guys used to being Wim Hof all the time?

      • Deme@lemmy.world
        12·
        11 months ago

        The thing to remember is that air is a great insulator. Air at 100°C isn’t nearly as bad as say water or metal at the same temperature against the skin. In fact, the air that comes in contact with the comparatively cold human skin will cool down rapidly, forming a layer of cooler air around you and lessening the sensation of heat further.

      • sebsch@discuss.tchncs.de
        6·
        11 months ago

        100°C is a quite hot one. It could hurt your nose and ears a bit, especially if they having a steaming session.

        The cold water (normally ~10°C) does not hurt at all. The first minute your brain is not able to differentiate the temperature at all. After that it gets quite quickly into: ohh I should leave!

        Btw: you should try sauna at some point. Especially with the steaming it’s amazing. There are also milder ones with ~80°C, I would recommend at the start.

        • Deme@lemmy.world
          3·
          11 months ago

          100°C is nice. And what’s a steaming session? Throwing water onto the rocks for steam every now and then is just standard operating procedure.

      • DrMango@lemmy.world
        4·
        11 months ago

        Yes. It’s wonderful. It feels great physically and mentally. Wim Hoff is a bit crazy tho tbh

      • Agent641@lemmy.world
        4·
        11 months ago

        Wim Hof, the guy who shredded his intestines by giving himself an enema from a public water fountain while waiting to meet his estranged son?

        • Wogi@lemmy.world
          5·
          11 months ago

          Oh sure, so what are you, a Newton scale guy? “What is it outside? 6? Lovely. High of 12? Fuck that noise I’m staying inside at a nice comfortable 5.”

  • ChicoSuave@lemmy.world
    852·
    11 months ago

    Fahrenheit is like school grades: 60 is minimum tolerance and beyond 100 adds nothing but misery.

  • doggle@lemmy.dbzer0.com
    481·
    11 months ago

    There are many people (particularly in northern regions) who would consider 50° to be quite mild/pleasant

    • elscallr@lemmy.world
      86·
      11 months ago

      Weather/room temp wise we probably never will. I’d rather think of my environment in terms of 0 to 100 than in terms of -18 to 38. For science and engineering, Celsius is ideal, and I can convert between the two in the very rare occasion I need to because I’m not an idiot who can’t do basic math.

      • Sanyanov@lemmy.world
        10·
        11 months ago

        That’s entirely a matter of habit. There is nothing special about 0°F (random point in the cold range?) or 100°F points (random point in the hot range?), you’ve been lied to.

        We don’t think -18°C to 38°C, we think -50°C to +50°C (regular Celsius weather thermometer, covers almost any temperature observed on Earth), with 0°C differentiating between snow/ice, “wintery” weather, and rain/mud, “non-wintery” one. That’s how we know whether to take umbrella (no point if it snows, hat is your best friend), what kind of shoes are the best fit - cold-resistant or highly waterproof - or which kind of jacket is gonna fit the situation. Melting point of water is actually incredibly important weather-wise and entirely ignored by Fahrenheit scale.

        When it’s not winter, normal range is 0-40°C, with 20°C designating comfort temperature.

      • Baŝto@discuss.tchncs.deEnglish
        7·
        11 months ago

        For science and engineering, Celsius is ideal,

        The SI base unit for temperature is Kelvin with 0 K being the coldest possible temperature. 273.15 K is the melting point of ice. But it’s a lot better suited for temperature differences. Celsius is only a derived unit.

        And well, all units and measurement systems had a lot of changes over time because some things turned out to be impractical or inaccurate.

        Initially Celsius had 100° as the freezing point of water, 0° as the boiling point of water. Fahrenheit had 0° as the coldest temperature he could produce and the (wrong) average human body temperature at 90°. Kelvin was initially defined via Celsius, that got reversed, they have the same scale. There is also Rankine, which starts at 0 like Kelvin, but uses the Fahrenheit scale.

        And the US partially uses SI units anyways, all units are derived from them to use their superior base unit definitions. This system came into existence to have unit definitions that are better reproducible and change less over time. Since everything was redefined and all numbers changed anyways, they also tried to make use of the “new” decimal representation of numbers. And new unit names were nice to create some general units, in contrast to foot and pound, which were always different from place to place, at times even from city to city.

        I don’t expect the US to ever switch. The US switched to international yard and pound instead of switching to a decimal system. After US, UK, Canada, Australia, New Zealand and South Africa agreed on that one, all countries who remained using these units had a uniform definition for them. Since then you don’t need to know any longer which yard or pound it was. Though not all units got standardized by that.

        And some countries didn’t drop all old units and metricized some instead. Even SI kept the ton(ne). You can’t know what 1t exactly means without knowing the context, it can be 2240lb, 2000lb or 1000kg (~2204.6226lb).

      • Captain Aggravated@sh.itjust.works
        3·
        11 months ago

        Aviation is already backwards; aviators give distance to travel in nautical miles, visibility in statute miles, altitude and runway length in feet, speed in knots, weight in pounds, volume in gallons, and temperature in celsius. My favorite is the standard adiabatic lapse rate is given as 2°C/1000 feet.

      • ferralcat@monyet.cc
        112·
        11 months ago

        Celcius us a horrible scale for science or engineering. The world literally explodes when water freezes.

  • Thorry84@feddit.nl
    526·
    11 months ago

    Not to defend Fahrenheit, it’s a nonsense scale, however: As with most subjective scales the entire scale can be split into good and not good. The top part is good and the bottom part is not good. The middle of the top part is seen as average good.

    So around 75 degrees would be perfect, which is close enough for something as subjective as temperature.

    This is why in things like movie or game reviews a 7/10 is seen as average. Like it’s good, in the good part, but right in the middle not anything special. A 5/10 or lower is seen as not good, not worth seeing, not worth your time etc. This works for reviews, grades, person attractiveness rating etc.

      • Thorry84@feddit.nl
        201·
        11 months ago

        Are you saying global warming is actually caused by the bias of IGN reviewers?

      • doggle@lemmy.dbzer0.com
        12·
        11 months ago

        Why not? Most people only meaningfully engage with temperature scales when checking weather forecasts. It’s all pretty subjective.

        If course there’s a need for Celsius or Kelvin in scientific applications, but that’s not for the overwhelming majority of people.

        • psud@lemmy.world
          21·
          11 months ago

          but that’s not for the overwhelming majority of people.

          Surely you’re aware that the overwhelming majority of people do not live in the US. Nearly everyone is fine with Celcius. Billions of people, as opposed to a few hundred million that have been socialised to using the other scale

    • GBU_28@lemm.eeEnglish
      5·
      11 months ago

      75 perfect?

      Well at least you have the right attitude the way our climate is headed

  • hark@lemmy.world
    42·
    11 months ago

    If you score 100 on a test then that’s a perfect, therefore 100 is the perfect temperature.

  • 0x4E4F@sh.itjust.worksEnglish
    32·
    11 months ago

    Don’t impose your imperialistic temperature views on the rest of us! Leave us cold lovers alone!

  • doctorcrimson@lemmy.world
    31·
    11 months ago

    NGL I could be jogging outside at windless 50 degrees everyday. That would be a dream compared to my current life in the hell that is the 47th Latitude Great Plains Region.