# Measurements of Newton's gravitational constant and the length of day

@article{Anderson2015MeasurementsON, title={Measurements of Newton's gravitational constant and the length of day}, author={J. Anderson and G. Schubert and V. Trimble and Michael R. Feldman}, journal={EPL}, year={2015}, volume={110}, pages={10002-10002} }

About a dozen measurements of Newton's gravitational constant, G, since 1962 have yielded values that differ by far more than their reported random plus systematic errors. We find that these values for G are oscillatory in nature, with a period of , an amplitude of , and mean-value crossings in 1994 and 1997. However, we do not suggest that G is actually varying by this much, this quickly, but instead that something in the measurement process varies. Of other recently reported results, to the… Expand

#### Paper Mentions

#### 54 Citations

Invited Review Article: Measurements of the Newtonian constant of gravitation, G

- Medicine, Mathematics
- The Review of scientific instruments
- 2017

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