this post was submitted on 07 Sep 2024
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Science Memes

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Seriously. (lemmy.ca)
submitted 2 months ago by [email protected] to c/[email protected]
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[–] [email protected] 85 points 2 months ago* (last edited 2 months ago) (4 children)

Pedantry:

K and °R agree on 0
K and °C agree on the unit difference
°F and °R agree on the unit difference
°R and °Ra are the exact same thing (??)

[–] [email protected] 33 points 2 months ago (2 children)

Celsius and Fahrenheit agree on -40, but since they're scales that scale at different rates there's bound to be some value where they intersect rather than some meaningful number like Kelvin and Rankine being zeroed to Absolute Zero

[–] [email protected] 32 points 2 months ago

Same with 574.59°F = 574.59K

[–] [email protected] 5 points 2 months ago* (last edited 2 months ago)

Two lines which are not perpendicular will meet at one point?

[–] [email protected] 29 points 2 months ago (1 children)

Also Rankine, being an absolute scale, theoretically shouldn't be in ° anything, and it's only some weird historical quirk that is the reason it usually is called degrees.

[–] [email protected] 1 points 2 months ago (1 children)

I am not sure I follow that. The scale is always relative right? It’s just the zero that’s absolute. But that’s also the case with measuring angles where we do use the degree symbol.

[–] [email protected] 4 points 2 months ago

It’s just the zero that’s absolute

Right, that's what makes Rankine and Kelvin absolute scales, while Fahrenheit and Celsius are relative.

[–] [email protected] 11 points 2 months ago

°R and °Ra are the exact same thing (??)

I think °R is supposed to be Réaumur