Re: Shouldn't the kilogram be defined in terms of its field ?



Thanks for the information on “ frequency combs ”. As I understand it,
harmonics ( resonance ) increases the signal-to-noise ratio.

P.S.
The standard for mass is the IPK ( International Prototype Kilogram ),
it's not one gram.

The NIST hopes to establish a new standard for the kilogram
by combing an ultra-precise weighing ( a Watt-balance in a vacuum )
with an ultra-precise gravimeter ( an accelerometer, in a vacuum ).

Noise is a serious problem, I'm sure.

.



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