this post was submitted on 24 Oct 2024
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Science Memes

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submitted 15 hours ago by [email protected] to c/[email protected]
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[–] [email protected] 32 points 11 hours ago (1 children)

This knowledge comes in handy with marketing BS around CPU coolers. If an aftermarket cooler gets a CPU to 35C when the stock cooler is at 70C, marketing will sometimes claim it cut temperatures in half.

[–] [email protected] 7 points 6 hours ago* (last edited 5 hours ago) (4 children)

I mean.... that's literally half though

edit: I am not a science man and I am in over my head in this argument

[–] [email protected] 6 points 3 hours ago* (last edited 2 hours ago)

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.

[–] [email protected] 6 points 5 hours ago (1 children)

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.

[–] [email protected] 4 points 4 hours ago

thanks, this makes a lot more sense.

That being said, 70C down to 35C is a huge difference, relative to the temperature ranges we live in

[–] [email protected] 6 points 5 hours ago

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.

[–] [email protected] 6 points 6 hours ago

308.15K is not half of 343.15K