A New Determination ofGUsing Two Methods

Abstract

We present the results of a measurement of $G$ made with a torsion-strip balance used in two substantially independent ways. The two results agree to within their respective uncertainties; the correlation coefficient of the two methods is $-0.18\mathrm{}$. The result is $G=6.675\mathrm{}59\left(27\right)\times {10}^{-11\mathrm{}}{\mathrm{m}}^3{\mathrm{kg}}^{-1\mathrm{}}{\mathrm{s}}^{-2\mathrm{}}$ with a standard uncertainty of 4.1 parts in ${10}^5$. Our result is 2 parts in ${10}^4$ higher than the recent result of Gundlach and Merkowitz.