Submarine Measurement of the Newtonian Gravitational Constant

Citation:
Zumberge, MA, Hildebrand JA, Stevenson JM, Parker RL, Chave AD, Ander ME, Spiess FN.  1991.  Submarine Measurement of the Newtonian Gravitational Constant. Physical Review Letters. 67:3051-3054.

Date Published:

Nov

Keywords:

inverse-square law, tower gravity experiment

Abstract:

We have measured the Newtonian gravitational constant using the ocean as an attracting mass and a research submersible as a platform for gravity measurements. Gravitational acceleration was measured along four continuous profiles to depths of 5000 m with a resolution of 0.1 mGal. These data, combined with satellite altimetry, sea surface and seafloor gravity measurements, and seafloor bathymetry, yield an estimate of G = (6.677 +/- 0.013) x 10(-11) m3 s-2 kg-1; the fractional uncertainty is 2 parts in 1000. Within this accuracy, the submarine value for G is consistent with laboratory determinations.

Notes:

n/a

Website

DOI:

10.1103/PhysRevLett.67.3051