• NeatNit@discuss.tchncs.de
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    12 days ago

    Pedantry:

    K and °R agree on 0
    K and °C agree on the unit difference
    °F and °R agree on the unit difference
    °R and °Ra are the exact same thing (??)

    • neoman4426@fedia.io
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      12 days ago

      Celsius and Fahrenheit agree on -40, but since they’re scales that scale at different rates there’s bound to be some value where they intersect rather than some meaningful number like Kelvin and Rankine being zeroed to Absolute Zero

  • Revan343@lemmy.ca
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    12 days ago

    Rankine and Kelvin have zero at the same point, which is absolute zero, and should not be used with the degree symbol

    This concludes my TED talk

  • LibertyLizard@slrpnk.net
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    12 days ago

    This is why Celsius is the only SI unit that isn’t just wholly better than its imperial counterpart. Both F and C are fairly arbitrary, but in my view F has the slight edge by giving numbers 0-100 in most weather conditions across earth.

  • Trev625@lemm.ee
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    12 days ago

    I went down a huge rabbit hole cause of this. I personally like °F over °C but agree it’s arbitrary. So I tried to make a scale that started at the coldest air temp on earth (some day in Antarctica) and went to the hottest day on earth (some day in death valley) and put the coldest day at 0°A and the hottest at 100°A.

    Sadly this made a scale that was less precise than I’d like. I like that I can feel the difference between 73°F and 74°F and don’t want to have to use decimals.

    So maybe the end points could be only places where people actually live. Well it looks like some people live in Russia around -70°C and some people live in northern Africa around 50°C so if you just take °C and add 60 you can get a -10 to 110 scale where most temps would fall between 0 and 100. Still has the unit difference of °C (which I don’t like) but I like that most temps are between 0 and 100. I also don’t really like negative temperature since it seems wonky.

    To “fix” the unit scale you could just multiply everything by 2 so the difference between each full degree is half as much. So temps would be between -20 and 220. °A = 2(°C + 60) °A = 2(°C) + 120

    And it turns out I (basically) created the Fahrenheit scale but moved. °F= 1.8(°C) + 32

    TL;DR: I’m stupid and this was fun but also a waste of time lol

    • Gremour@lemmy.world
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      11 days ago

      Celsius is tied to points of ice melting and water vaporising. Since water is very important for the life on our planet, it makes even more sense than arbitrary chosen meters or seconds.

      • Agent641@lemmy.world
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        11 days ago

        At sea level. Welcome to La Paz, where the triple point is made up and the freezing point doesn’t matter!

      • EldritchFeminity@lemmy.blahaj.zone
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        11 days ago

        And similarly, Fahrenheit seems to be tied to the internal temperature of the human body, with 100 degrees being the maximum that the average person can handle before their organs start to be damaged.

        • Gremour@lemmy.world
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          11 days ago

          Yes, Fahrenheit is about humans, and Celsius is about the element that makes life possible. The latter is more generic.

        • azi@mander.xyz
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          10 days ago

          Maximum is 100 °F and minimum is 95 °F. Those seem pretty arbitrary to me