• CynAq
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    11 year ago

    As someone who moved to the US later in life, I learned to use fahrenheit because there’s no way to talk to anyone about the weather or cooking otherwise.

    If you need to do the same one day, don’t bother trying to convert in your head. Just learn the numbers conversationally. Familiarize yourself with how the weather feels with the number the weather app shows.

    I can’t convert at all but I can use both C and F in conversation because one rarely needs exact numbers anyway. You learn the ballparks pretty quick.

    • klz
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      11 year ago

      I find the conversion between the two easy enough to do it my head.

      This isn’t exact but is close enough for conversations and 99% of my needs.

      (Temp in F - 30) / 2

      Examples

      70F:
      70F - 30 = 40
      40 / 2 = 20C
      
      10F:
      10F - 30 = -20
      -20 / 2 = -10C
      
      

      The actual number is 21 / -12 but this is close enough for me 99.9% of the time

    • ThesePaycheckAvenging
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      01 year ago

      Isn’t Fahrenheit a “feel” temperature unit anyway? Once you need precision (science), even Americans switch to Celsius/Kelvin.

      • @teawrecks@sopuli.xyz
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        1 year ago

        FWIW Fahrenheit has more precision for the temperatures you most commonly feel. Day-to-day you’re likely to feel temps between 10-32°C (range of 22°), which is 50-90°F (range of 40°). It might not seem like a big deal, but I can tell a difference in my house when setting my thermostat from 68°F to 69°F; conversely, if I turn my thermostat to C mode both values get rounded to 20.

        But yes, as an American, I think of CPU temps in terms of C, I know water freezes at 0°C/32°F, I know water boils at 100°C but have never committed to memory what it is in F, and in chem classes we always use C/K.

        • ddh
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          1 year ago

          Can you set your thermostat to 68.5°F? I can set mine to 21.5°C, does that mean I have more precision? This precision argument is nonsense.

          • @teawrecks@sopuli.xyz
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            11 year ago

            Yeah, if it can do 21.5 then that would be the same amount of precision.

            Thermostats aren’t the only place this shows up tho. There was the infamous iphone weather app quirk where the F temp was always derived from the C temp, and only used an integer value under the hood for C, so after converting and rounding, it would never show 69F.

            I was responding to someone who said F had less precision, but for the temperatures most relevant to humans, it’s deliberately designed to have more precision.

    • Thank you, this is a a great idea! I’ve found these common temperatures online, in case anyone wants to learn them:

      Description Celsius (°C) Fahrenheit (°F)
      Absolute Zero -273.15 -459.67
      Freezing Point of Water (at sea level) 0 32
      Average Room Temperature 20-22 68-72
      Body Temperature 37 98.6
      Average Summer Day 25-30 77-86
      Heat of a Desert 40-50 104-122
      Boiling Point of Water (at sea level) 100 212
      Highest Recorded Earth Temperature 56.7 134
      • jorge
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        -11 year ago

        Average Summer Day 25-30 77-86

        See, that’s the problem with these “Fahrenheit is more intuitive” arguments. They are catered to a very specific country with a very specific climate. For me, 25-30 ºC is an average late spring day.

        • It’s intuitive to those who grew up using it. For me, Celsius is much more intuitive because people around me used it all my life and refer to common temperatures in Celsius.

          So I think intuitiveness is very subjective and not a good criterion to judge a unit by.