Investigating variations in the gravitational constant

Abstract In August–September 1987 a group of geophysicists, led by M. Ander of the Los Alamos National Laboratory and M. Zumberge of Scripps Institution of Oceanography, performed a geophysical experiment to determine the value of the gravitational constant, G. Using the DYE-3 borehole on the Greenl...

Full description

Bibliographic Details
Published in:Polar Record
Main Authors: Cooper, A. P. R., Gorman, M. R.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1989
Subjects:
General Earth and Planetary Sciences
Ecology
Geography, Planning and Development
Greenland
Scripps
Zumberge
Dye 3
Dye-3
Ice cap
Polar Record
Online Access:http://dx.doi.org/10.1017/s0032247400009992
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400009992
Description
Summary:Abstract In August–September 1987 a group of geophysicists, led by M. Ander of the Los Alamos National Laboratory and M. Zumberge of Scripps Institution of Oceanography, performed a geophysical experiment to determine the value of the gravitational constant, G. Using the DYE-3 borehole on the Greenland ice cap, the experiment was intended to provide evidence concerning possible scale variations in G, and thus for non-Newtonian gravity. This report describes the background to the experiment and the radio echo-sounding survey carried out to provide terrain corrections for the gravity model. The experiment showed values of G differing from laboratory determinations by margins which considerably exceed experimental error.

Similar Items