Reflections on a Measurement of the Gravitational Constant Using a Beam Balance and 13 Tons of Mercury

preprint2014arXivOpen access

Abstract

In 2006, a final result of a measurement of the gravitational constant GG performed by researchers at the University of Zürich was published. A value of $G=6.674\,252(122)\times 10^{-11}\,\mbox{m}^3\,\mbox{kg}^{-1}\,\mbox{s}^{-2}$ was obtained after an experimental effort that lasted over one decade. Here, we briefly summarize the measurement and discuss the strengths and weaknesses of this approach.

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