Redetermination of the Newtonian Gravitational Constant G

Gabriel G. Luther and William R. Towler
Phys. Rev. Lett. 48, 121 – Published 18 January 1982
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Abstract

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)×1011 m3· sec2· kg1·

  • Received 17 November 1981

DOI:https://doi.org/10.1103/PhysRevLett.48.121

©1982 American Physical Society

Authors & Affiliations

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

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Vol. 48, Iss. 3 — 18 January 1982

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