Reanalysis of Old Eötvös Data Suggests 5th Force…To Some
OCT 01, 1986
DOI: 10.1063/1.2815165
Newton’s gravitational constant has been with us for three centuries. Yet despite our long and intimate acquaintance, we know this fundamental constant of nature to little better than a part per thousand. Astronomical data are of scant use, because they always involve G multiplied by the mass of the Earth or some celestial body, and our knowledge of the mean density of such bodies is even more uncertain. Our best knowledge of G comes from modern variants of the classic Cavendish experiment, measuring the horizontal force between test bodies at distances up to a few meters in the laboratory.
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© 1986 American Institute of Physics
