CaltechAUTHORS
  A Caltech Library Service

Limits to the expansion of Earth, Moon, Mars and Mercury and to changes in the gravitational constant

McElhinny, M. W. and Taylor, S. R. and Stevenson, D. J. (1978) Limits to the expansion of Earth, Moon, Mars and Mercury and to changes in the gravitational constant. Nature, 271 (5643). pp. 316-321. ISSN 0028-0836. https://resolver.caltech.edu/CaltechAUTHORS:20140311-102648071

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140311-102648071

Abstract

New estimates of the palaeoradius of the Earth for the past 400 Myr from palaeomagnetic data limit possible expansion to less than 0.8%, sufficient to exclude any current theory of Earth expansion. The lunar surface has remained static for 4,000 Myr with possible expansion limited to 0.06%, the martian surface suggests a small possible expansion of 0.6% while the surface of Mercury supports a small contraction. Observations of Mercury, together with reasonable assumptions about its internal structure, indicate that G decreases at a rate of less than 8×10^(−12) yr^(−1), in constant mass cosmologies, and 2.5×10^(−11) yr^(−1) in Dirac's multiplicative creation cosmology.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1038/271316a0DOIArticle
http://www.nature.com/nature/journal/v271/n5643/abs/271316a0.htmlPublisherArticle
ORCID:
AuthorORCID
Taylor, S. R.0000-0003-0264-1453
Stevenson, D. J.0000-0001-9432-7159
Additional Information:© 1978 Macmillan Journals Ltd. Received 13 July, accepted November 1977.
Issue or Number:5643
Record Number:CaltechAUTHORS:20140311-102648071
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140311-102648071
Official Citation:Limits to the expansion of Earth, Moon, Mars and Mercury and to changes in the gravitational constant 316 M. W. McElhinny, S. R. Taylor & D. J. Stevenson doi:10.1038/271316a0
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44240
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:12 Mar 2014 15:13
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page