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Wilhelm Foerster's Role in the Metre Convention of 1875 and in the Early Years of the International Committee for Weights and Measures
Author(s) -
Quinn Terry
Publication year - 2019
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201800355
Subject(s) - convention , unification , law , principal (computer security) , observatory , german , political science , management , physics , history , computer science , archaeology , economics , computer security , astrophysics , programming language
The Metre Convention was signed on May 20, 1875 with the mission “to assure the international unification and perfection of the metric system” (today the International System of Units SI). The Convention continues to fulfill this mission, notably with the redefinition of the SI at the 26th General Conference on Weights and Measures in November 2018. A key role in the drawing up of the Convention was played by Wilhelm Foerster, at the time Director of the German Weights and Measures Service and Director of the Berlin Observatory. Foerster and Adolph Hirsch, Director of the Neuchatel Observatory, were the principal architects of the Convention and both contributed very much to the early years of its operation, Foerster as President of the International Committee for Weights and Measures and Hirsch as Secretary. In this article, the origin of the Convention, the creation of the International Bureau of Weights and Measures established at Sevres, and the many contributions of Wilhelm Foerster are outlined.