Phys. Rev. Lett. 48, 121 - 123 (1982)Redetermination of the Newtonian Gravitational Constant G |
Gabriel G. Luther
Center for Absolute Physical Quantities, National Bureau of Standards, Washington, D. C. 20234
William R. Towler
Department of Nuclear Engineering and Engineering Physics, University of Virginia, Charlottesville, Virginia 22901
Received 17 November 1981
The universal Newtonian gravitational constant is being redetermined at the National Bureau of Standards with use of the method of Boyes in which the period of a torsion pendulum is altered by the presence of two 10.5-kg tungsten balls. The difference in the squares of the frequencies with and without the balls is proportional to G. The resulting value of G is (6.6726±0.0005)×10-11 m3· sec-2· kg-1·
©1982 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v48/p121
DOI: 10.1103/PhysRevLett.48.121
PACS: 06.30.Gv
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