Geophysical evidence for non-newtonian gravity

Stacey F.D. and Tuck G.J. (1981) Geophysical evidence for non-newtonian gravity. Nature, 292 5820: 230-232. doi:10.1038/292230a0


Author Stacey F.D.
Tuck G.J.
Title Geophysical evidence for non-newtonian gravity
Journal name Nature   Check publisher's open access policy
ISSN 0028-0836
Publication date 1981-01-01
Sub-type Article (original research)
DOI 10.1038/292230a0
Open Access Status Not yet assessed
Volume 292
Issue 5820
Start page 230
End page 232
Total pages 3
Subject 1000 General
Abstract Measurements of the variation of gravity with depth in mines and boreholes permit the densities of intervening rock strata to be inferred. In the few cases in which reliable absolute values of density have been independently determined, the calculations can be used to check the value of the newtonian gravitational constant, G. Such large-scale measurements of G are important because the validity of the inverse square law of gravity at short range is being questioned. We have made such a series of measurements and have found four other data sets in the literature that suffice for the estimation of G. We also report here a statistical analysis of 1,100 km2 of overlapping sea floor and sea surface gravity data from the Gulf of Mexico (made available by Exxon). All these estimates of G give values that are higher than the conventional, laboratory-determined one. While the possibilities of systematic errors in these data sets preclude a definite conclusion that Newton's law of gravity fails at short range, the strong circumstantial evidence suggests that well controlled large-scale experiments on the inverse square law are urgently required.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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