Determination of the Gravitational Constant with a Beam Balance

St. Schlamminger, E. Holzschuh, and W. Kündig
Phys. Rev. Lett. 89, 161102 – Published 30 September 2002

Abstract

The Newtonian gravitational constant G was determined by means of a novel beam-balance experiment with an accuracy comparable to that of the most precise torsion-balance experiments. The gravitational force of two stainless steel tanks filled with 13 521 kg mercury on 1.1 kg test masses was measured using a commercial mass comparator. A careful analysis of the data and the experimental error yields G=6.67407(22)×1011   m3kg1s2. This value is in excellent agreement with most values previously obtained with different methods.

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  • Received 26 July 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.161102

©2002 American Physical Society

Authors & Affiliations

St. Schlamminger*, E. Holzschuh, and W. Kündig

  • Physik-Institut, Universität Zürich, CH-8057 Zürich, Switzerland

  • *Electronic address: schlammi@physik.unizh.ch
  • Deceased.

Comments & Replies

Tidal Effects on Gravity Experiments with a Balance

T. Datta, Ming Yin, Andreea Dimofte, M. Bleiweiss, A. Lungu, Jafar Amirzadeh, and W. E. Sharp
Phys. Rev. Lett. 91, 109001 (2003)

Kündig and Schlamminger Reply:

W. Kündig and St. Schlamminger
Phys. Rev. Lett. 91, 109002 (2003)

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Vol. 89, Iss. 16 — 14 October 2002

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