Test of Newtonian Gravity Using DSV Sea Cliff
Final rept. 1 Oct 1988-31 Dec 1991
SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
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Several recent geophysical measurements have searched for deviations from Newtons inverse square law by testing for range dependence of the gravitational constant G. One group of these experiments observes the vertical gravity gradient above the earth using measurements on tall towers and tests for deviations from Newtonian gravity but provides no direct estimate of G. Another group of geophysical experiments observes gravity from material slabs of known density by measuring within mines and boreholes or above fluctuating lakes. Collectively, these experiments offer little evidence for deviations from Newtonian gravity in the scale range 10 m to 1200 m.