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Investigating variations in the gravitational constant

Published online by Cambridge University Press:  27 October 2009

A. P. R. Cooper  and
M. R. Gorman
A. P. R. Cooper
Affiliation:
British Antarctic Survey, Madingley Road, Cambridge CB3 0ET
M. R. Gorman
Affiliation:
Scott Polar Research Institute, University of Cambridge, Lensfield Road Cambridge CB2 1ER
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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.

Type
Articles
Information
Polar Record , Volume 25 , Issue 152 , January 1989 , pp. 55 - 58
Copyright
Copyright © Cambridge University Press 1989

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