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xkcd #3001: Temperature Scales (xkcd.com)

submitted 3 weeks ago by schnurrito@discuss.tchncs.de to c/xkcd@lemmy.world

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In my new scale, °X, 0 is Earths' record lowest surface temperature, 50 is the global average, and 100 is the record highest, with a linear scale between each point and adjustment every year as needed.

https://explainxkcd.com/3001/

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[–] Bgugi@lemmy.world 33 points 3 weeks ago (1 children)

After joking about this at work, I landed on the most cursed scale I could think of... pT = log10 FPW.

Pros: no bottom to scale, increasing negative values asymptotically approach absolute zero. Water freezes at zero.

1 pT is almost exactly the melting point of iridium. Lightning bolts are around 2 pT. Boiling points of neon and helium are in the neighborhood of -1 and -2.

[–] Hamartiogonic@sopuli.xyz 3 points 3 weeks ago

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.