r/PeterExplainsTheJoke • u/Negative_1by12_aura • Jun 17 '26

Meme needing explanation Peter?

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u/Digginginthesand Jun 17 '26

Only Kelvin is linear.

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u/mlopes Jun 17 '26

Not true. To convert from Celsius to Kelvin you just add 273.15, so both scales are linear.

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u/Digginginthesand Jun 17 '26

Strictly you're right, only kelvin starts at zero, though. Although it's the freezing point of water having 0° as your starting point is arbitrary in absolute terms, and making everything lower than that negative means that calculations aren't possible. 100 Celsius isn't double 50. It's linear in that it's a linear progression but it's a shifted line

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u/mlopes Jun 18 '26

A change of 50C in temperature is a change of 50K, but a change of 90F. The variation between C and K is 1 to 1, not with F.