A Measurement of Newton's Gravitational Constant
Abstract
A precision measurement of the gravitational constant G has been made using a beam balance. Special attention has been given to determining the calibration, the effect of a possible nonlinearity of the balance and the zero-point variation of the balance. The equipment, the measurements and the analysis are described in detail. The value obtained for G is 6.674252(109)(54) 10-11 m3 kg-1 s-2. The relative statistical and systematic uncertainties of this result are 16.3 10-6 and 8.1 10-6, respectively.
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