u/Stealth-exe

Fundamental units: why kelvin and mole?
▲ 538 r/Physics

Fundamental units: why kelvin and mole?

Can't we just define (derive) temperature from the internal energy of an ideal gas?
Consider: deltaU = 3/2 k_B deltaT
We could define the kelvin as: A temperature increase of 1K is the increase that raises the average energy per particle by 3/2 J, with K being dimensionally the same as J.

Why then do we have K as a fundamental unit?

The case against mol being a _fundamental_ unit is just coz its a really useful number in Chemistry, at the end of the day it's just a gigantic number-fundamentally no different than say "dozen".

u/Stealth-exe — 15 hours ago

The Devanagari Font used by the Military vs the Roman Font

I feel the font used for Devanagari on aircraft is not as impactful and bold as the one used for English; it looks very similar to the default font used by MS word ("Mangal" iirc). Like, it'd feel weird if they used "Calibri" for the English text right? Obviously, this isn't an urgent matter by any means, but optics to do play a role in reality. What do you guys think?

Edit: typo

u/Stealth-exe — 7 days ago

Context: Tamil Actor Vijay doing really well in TN elections. Zelensky (Ukraine's leader) is similarly from an entertainment background.

u/Stealth-exe — 16 days ago