Investigating variations in the gravitational constant

Cooper, A. Paul R.; Gorman, M.R.. 1989 Investigating variations in the gravitational constant. Polar Record, 25 (152). 55-58. 10.1017/S0032247400009992

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Official URL: http://dx.doi.org/10.1017/S0032247400009992

Abstract/Summary

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.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1017/S0032247400009992
ISSN:	0032-2474
NORA Subject Terms:	Earth Sciences
Date made live:	19 Sep 2018 13:12 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/521007

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1017/S0032247400009992

ISSN:

0032-2474

NORA Subject Terms:

Earth Sciences

Date made live:

19 Sep 2018 13:12 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/521007