Why are the kilogram, ampere, kelvin, and mole still considered base units and not derived? Given their current definitions, they're purely defined in terms of other units and cannot be independently measured, right?
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It is linguistically defines as a thousand grams, tho.
Yeah I have no clue wtf is up with kg being the only prefixed base unit. Or why we are so afraid of mega as a prefix outside of bytes (e.g. we describe geostationary altitude as 35786 km, literally the existence of the word tonne)