• elscallr@lemmy.world
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    3 years ago

    When I’m doing things that require precision: grams and °C

    When I’m telling how the room or the temp outside is, °F

    Why? Because 0°F to 100°F is way more reasonable for telling comfort than -17.78°C to 37.78°C

    It’s not that hard to use both and anyone incapable of doing so is an idiot.

      • elscallr@lemmy.world
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        3 years ago

        What’s really funny? All thermometers are calibrated using 0°F

        Add ammonium hydroxide to ice water and the mixture will always be 0°F. Everyone calibrates their thermometer this way.

        • NoSpotOfGround@lemmy.world
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          3 years ago

          Interesting! I bet you need a second point for calibration though. It would be funny if it was boiling water, i.e. 100°C.

          • QuadratureSurfer@lemmy.world
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            3 years ago

            You’d half to take elevation into account. It’s 100°C at sea level. For every ~150m (500ft) you go up in elevation, you should expect the boiling temperature to be about 0.5°C less.

        • bouh@lemmy.world
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          3 years ago

          I very much doubt a celcius thermometer would be calibrated in farheneigt in a country where people don’t use this metric, but you gotta convince yourself I guess.

          • elscallr@lemmy.world
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            3 years ago

            Then you don’t know how to calibrate thermometers.

            You can’t use boiling or freezing water. The boiling and freezing point of water changes based on pressure.

            Any mixture of liquid water, frozen water, and ammonium hydroxide is 0°F at any pressure (assuming it itself isn’t boiling or freezing), which you can then calibrate to STP with a bit of math.

    • yata@sh.itjust.works
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      3 years ago

      Because 0°F to 100°F is way more reasonable for telling comfort than -17.78°C to 37.78°C

      There is nothing more reasonable about F in that scenario. You like it because you are familiar with it, that’s it. I can assure you that celsius is perfectly reasonable for telling you the room temperature. Billions of people use it without any problems, decimals and all (which is apparently something that Americans find extremely scary).

    • Prof_Eibe@lemmy.world
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      3 years ago

      I could turn this around and say there is no sple way to tell -20°C oder +40°C in F. Who decides that the F Values are the exact points where humans feel uncomfortable when it can be some nearby C ones?

    • gchap@lemmy.world
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      3 years ago

      For someone that grew up using Fahrenheit, maybe. I have no desire nor need to learn it.