I'm dreaming of a white Christmas

mmm, delicious carbonjack

Fun fact: gas pressure changes linearly with temperature. If you make one of these plots at mild conditions you can extraplate the line down to zero pressure and measure where absolute zero temperature is

For the most part, it varies by material and state of matter, but assuming the chemical composition doesnt change and no material changes phase, then it is pretty close to linear in most materials.

to make the argument even simpler, that phrase wouldn't even mean the same thing to an english person as it would to an american.

In fahrenheit those temps would convert to 95f and 158f.

If you convert those temperatures to Kelvin, they become 308K and 343K. Since Kelvin is absolute and we're measuring the same material, this tells you how much more thermal energy is there and their actual proportion to each other.

But it's not.

Celsius and Faernheit are interval scales, not rational scales. The absolute change from one number to the next is consistent, but since you can go into the negatives, 1 is not double 2.

Kelvin and Rankine are rational because they use an absolute zero.

308.15K is not half of 343.15K

0 is the freezing point of water 50 is the boiling point.

If it's 30°c outside, it will be only be 15 after the wish, thus fit what the character said

what, you never heard of the room temperature room?