Warp wrote:
>   But a centimeter is not defined like that. It's defined from the speed of
> light in vacuum. There's no circle.

Yes, I saw that.

>   Unusable base metrics?

0K is unreachable even in theory.

>   Given that the object which is currently the measurement of 1 kg changes
> weight every time it's measured, does it really matter? It would simply be
> one more change, but then it would be fixed, and that's it.

True. I don't know how they work it now.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".

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