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Science 25 February 1983:
Vol. 219. no. 4587, pp. 913 - 921
DOI: 10.1126/science.219.4587.913
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Articles

Precision Measurements and Fundamental Constants

Francis M. Pipkin 1 and Rogers C. Ritter 2

1 James B. Baird, Jr., Professor of Science at Harvard University, Cambridge, Massachusetts 02138, Member of the National Research Council Numerical Data Advisory Board Committee on Fundamental Constants
2 Professor of physics at the University of Virginia, Charlottesville 22901, Member of the National Research Council Numerical Data Advisory Board Committee on Fundamental Constants

Recent developments in the techniques for making precision measurements and their use in the determination of the fundamental constants are reviewed. Particularly noteworthy developments are clocks with high stability, the proposed redefinition of the meter in terms of the standard for time, and the increased precision with which electrical standards can be maintained. The relevance of precision measurements to tests of general relativity is briefly discussed.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Using Time to Measure Length.
A. L. ROBINSON (1983)
Science 220, 1367
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