> It's time for a new kilogram standard, researchers say _ one that won't > depend on the vagaries of a single chunk of metal. So physicists are > striving to replace le grand K with a fundamental physical measurement to > last forever.
I agree. Let's remove a subtle but annoying inconsistency from the system by defining the kilogram to equal exactly the mass of 1000 cc of water at 4 deg C. (The old kilogram comes out to 1000.028 cc, so this is a change but a minor one.) All the SI units are supposed to be interrelated this way. Let's make it true by making this change. Effectively this means that the radiation wavelength that defines the meter will now define the kg as well.
