Testing the inverse-square law of gravity on a 465-m tower

Details Testing the inverse-square law of gravity on a 465-m tower Testing the inverse-square law of gravity on a 465-m tower

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..63.1902t&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 63, Oct. 30, 1989, p. 1902-1905.

Physics

29

Gravitation Theory, Newton Theory, Gravitational Fields, Laplace Equation, Surface Properties, Tests, Towers

Scientific paper

A test of Newton's universal theory of gravitation has been performed. Gravity was measured at 12 heights on a 465-m tower at the Nevada Test Site and, in addition, made measurements at 281 locations on the ground. The surface points fell within 91 optimally chosen sectors that extended out to 2.6 km from the tower. These data were combined with 60,000 additional surface gravity measurements within 300 km of the tower. A surface integral derived from Laplace's equation was used to continue the surface gravity field upward and the observations are consistent with the Newtonian predictions to within (-60 + or - 95) x 10 to the -8th m/sq sec at the top of the tower.

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