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A comment on NIST to redefine the kilogram based on a fundamental universal constant. Parent comment

Re:NIST to redefine the kilogram based on a fundamental univ... by dtech on Thursday July 06, 2017 @01:01PM (#14711864)
A second (time) is already defined on cesium transition, a meter (length) is defined as a fraction of the distance light travels in a second. Both things which we can accurately measure for some time now, and which universal and stable over eons.

What is the problem that would be solved by switching to a single element?

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Re:NIST to redefine the kilogram based on a fundamental univ... by madengr on Thursday July 06, 2017 @01:16PM (#14712012)
I don't recall. I just read some article recently about trying to define time and length with sodium; trying to define everything with a single element that is very common. Of course it could also have been a 50 year old Asimov book.
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