A value forGfrom beam-balance experiments
- 1 January 1999
- journal article
- Published by IOP Publishing in Measurement Science and Technology
- Vol. 10 (6), 487-491
- https://doi.org/10.1088/0957-0233/10/6/312
Abstract
A high-precision measurement of the Newtonian gravitational constant G by means of a beam balance is being carried out at the University of Zürich. We have made test measurements in which the gravitational force of 103 kg of water was used and G was determined with a relative standard uncertainty of 220 × 10-6. Currently, measurements with 13.5 × 103 kg of mercury are in progress. These measurements are not completed yet, but a preliminary result is presented.Keywords
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