Who reads this anyway? Nobody, that’s who. I could write just about anything here, and it wouldn’t make a difference. As a matter of fact, I’m kinda curious to find out how much text can you dump in here. If you’re like really verbose, you could go on and on about any pointless…[no more than this]

  • 0 Posts
  • 674 Comments
Joined 1 year ago
cake
Cake day: June 5th, 2023

help-circle






  • At least that follows some mathematical logic. Mohs scale of hardness is pretty close to pT scale in that sense, but there’s no mathematics or logic involved. It’s just a list of standard materials that define specific points on the scale. When you compare the results with a more logical scale, it looks neatly non-linar at first glance, but the closer you look, the less sense it makes. It’s just a list of exceptions to whatever rule you may have had in mind.

    Doesn’t mean it’s a useless scale. You can totally use it for qualitative assessment of hardness, but steer clear of it when numbers and decimals actually matter.



  • Hamartiogonic@sopuli.xyztoxkcd@lemmy.worldxkcd #3001: Temperature Scales
    link
    fedilink
    English
    arrow-up
    5
    arrow-down
    1
    ·
    14 days ago

    You could totally make an extra cursed temperature scale. Randall proposed the °X scale, but maybe we can do better than that. That was pretty cursed because it defines three points based on statistics observed on of Earth and uses linear interpolation to connect the dots.

    I propose an extra cursed system that uses completely fictional values. Let’s take -π as the melting point of unicorns and +GrahamsNumber as the peak temperature in the core of the hypothetical planet Vulcan. Between the two points you can fit any seventh degree polynomial you like in order to get the values that fit your needs. On Wednesdays you can use a sine wave too.



  • In the Middle East, the winters are brutally cold and the locals suffer. Tourists from colder regions come there to enjoy their winter vacation in December or January, because it’s paradoxically quite warm. They only pack their normal spring clothes because it isn’t really that cold in their opinion. You know, a thin coat, maybe a thin summer beanie. You’ll probably be ok without any mittens. Also, you can wear normal shoes which is nice.

    Extreme weather gear is considered just normal winter clothes in some parts of the world.


  • Hamartiogonic@sopuli.xyztoxkcd@lemmy.worldxkcd #3001: Temperature Scales
    link
    fedilink
    English
    arrow-up
    8
    arrow-down
    4
    ·
    14 days ago

    I don’t really use the Fahrenheit scale for anything, but when I bump into it, I prefer to think of those values as: 0°F is a cold winter and 100°F is a hot summer weather. Makes sense for the human experience, which makes it a very practical unit. The original definition was more technical than that, but it was also severely limited by the technology at the time, so it had some flaws.

    You also have to look at these units in the proper historical context. Measurements were a complete mess, so having at least something that sort of makes some sense and is somewhat repeatable, is a clear improvement. Both, Fahrenheit and Celcius scales totally addressed those concerns, and that makes them both good enough. Absolute zero and plank temperature weren’t even known back then, so what can you expect.

    When it comes to using these units in serious scientific and engineering applications, you run into problems, but the kelvin scale addresses those pretty well. It’s not exactly elegant, but at least it’s functional. Because of historical baggage, we’re pretty much stuck with these units, but it could be worse.


  • Hamartiogonic@sopuli.xyztoxkcd@lemmy.worldxkcd #3001: Temperature Scales
    link
    fedilink
    English
    arrow-up
    14
    arrow-down
    14
    ·
    edit-2
    13 days ago

    Yeah, well that’s a cultural thing really. Celcius and fahrenheit scales are both quite arbitrary. The kelvin scale uses absolute zero, which totally makes sense, but the other fixed point is pretty arbitrary when you think of it. The fahrenheit scale makes sense for the human experience of weather, while the celcius scale makes sense for generally life on Earth where water plays an important role. Neither of them are particularly universal, and they both suck in their unique ways.

    see also: natural units

    (Edit)

    Life Pro Tip: If you take the piss out of two units at the same time, you can make everyone equally angry.