• LostXOR@fedia.io
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      4 days ago

      How so? Absolute zero is the coldest possible temperature, it’s physically impossible for an object to be colder. Saying that’s arbitrary is like saying it’s arbitrary to define 0 m/s as not moving.

      • Telodzrum@lemmy.world
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        4 days ago

        It’s still assuming a scale. It’s actually worse because the scale is implied by context.

        • GBU_28@lemm.ee
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          4 days ago

          Zero kelvin is very contextually useful. Put very simply it literally relates to the motion of atoms. At zero, they move zero.

        • xthexder@l.sw0.com
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          4 days ago

          What? What context? The scale is the same as Celsius which is derived from the properties of water. And 0K is when there is absolutely no heat energy in the thing being measured. There is no context where this is not the case.

          • Telodzrum@lemmy.world
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            4 days ago

            The one where a human is speaking in English and referring to a season and the temperature is more than significant context. I hope this helped you; it seems that you’re one of those people who lack the capacity to infer from available data.

            • xthexder@l.sw0.com
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              4 days ago

              People don’t use Kelvin when referring to seasons. Sure, there’s plenty of ambiguity if someone says it’s 32° out without specifying the units, and you can infer from context, but that has nothing to do with Kelvin starting at absolute zero. Saying “degrees” immediately rules out Kelvin as a unit.

        • fallingcats@discuss.tchncs.de
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          3 days ago

          The scale doesn’t matter, double is always double. No matter if expressed in 1m is half of 2m, or 3ft is half of 6ft. Same is true for temperature, als long as the zero point is fixed.

            • fallingcats@discuss.tchncs.de
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              3 days ago

              Double is a scale in itself, it assumes the first thing as 1 and the second thing as 2. The are no other scales needed when I say something is double the other thing. The other thing is the scale here.