this post was submitted on 04 Sep 2025
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There are lots of cursed options
https://xkcd.com/3001/
Wtf is going on with Dalton
It's a logarithmic scale based on Kelvin, but with constants shoved in there so 0 and 100 would agree with Celsius.
https://physics.stackexchange.com/questions/459851/john-daltons-temperature-scale
I'm more confused about Galen. -4 to 4, 0 is "normal"? 50 c is "normal"? For what??
In Galen's scale, the 0 point is 22 °C, an alright room temperature, but the others are described too vaguely for us to convert. It might also be nonlinear. See the explainxkcd.com article
Ohh ok thanks for that link! So it is non linear. But not even a consistent curve like log, just if less than zero some factor, if positive a different one. Yuck.
That's the conjecture by Randall and Explain XKCD wiki editors. We can't tell either way, he just wasn't specific enough. All we know is that 0 on the scale is 22 °C and that it goes 4 steps up to "very hot" and 4 steps down to "very cold".
His degrees X would be a good way to show changes over long periods of time by simply graphing the annual adjustments.