A Better Definition of the Kilogram

2007/09/17 by Ronald F. Fox, Theodore P. Hill, Fox, Ronald F. +1
Physics and Astronomy · #FOS: Physical sciences #General Physics (physics.gen-ph) #physics.gen-ph

paper · pdf · doi:10.48550/arxiv.0709.2576

3 pages

arxiv created 2007/09/17 · arxiv updated 2009/12/01

Abstract

Fixing the value of Avogadro's constant, the number of atoms in 12 grams of carbon-12, at exactly 84446886³ would imply that one gram is the mass of exactly 18x14074481³ carbon-12 atoms. This new definition of the gram, and thereby also the kilogram, is precise, elegant and unchanging in time, unlike the current 118-year-old artifact kilogram in Paris and the proposed experimental definitions of the kilogram using man-made silicon spheres or the watt balance apparatus.

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