This article reviews several recent proposed redefinitions of the kilogram,
and compares them with respect to practical realizations, uncertainties
(estimated standard deviations), and educational aspects.Comment: 10 pages, no figure

Albert C Censullo

Bureau International des Poids et Mesures

Fox R F

Hill T

Hill T Miller J Fox R F

Jack Miller

Jeannin Y

Karol P

Lorimer J

Mills I

Theodore P Hill

English

arXiv

It is widely accepted that improvement of the current International System of Units (SI) is necessary, and that central to this problem is redefinition of the kilogram. This paper compares the relative advantages of two main proposals for a modern scientific definition of the kilogram: an ‘electronic kilogram’ based on a fixed value of Planck’s constant, and an ‘atomic kilogram’ based on a fixed value for Avogadro’s number. A concrete and straightforward atomic definition of the kilogram is proposed. This definition is argued to be more experimentally neutral than the electronic kilogram, more realizable by school and university laboratories than the electronic kilogram, and more readily comprehensible than the electronic kilogram

Hill, Theodore P

Miller, Jack

Censullo, Albert C.

DigitalCommons@CalPoly

Towards a Better Definition of the Kilogram

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Towards a better definition of the kilogram

A Better Definition of the Kilogram

A Better Definition of the Kilogram

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