Physics
Scientific paper
Jan 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.271..316m&link_type=abstract
Nature, vol. 271, Jan. 26, 1978, p. 316-321.
Physics
31
Earth (Planet), Earth Gravitation, Gravitational Constant, Mars (Planet), Mercury (Planet), Moon, Radii, Cosmology, Expansion, Lunar Surface, Mars Surface, Paleomagnetism, Planets, Terrestrial Planets, Earth, Moon, Mercury, Gravity Properties, Mars, Gravity Effects
Scientific paper
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 x 10 to the minus 12th power per year, in constant mass cosmologies, and 2.5 x 10 to the minus 11th power per year in Dirac's multiplicative creation cosmology.
McElhinny Michael W.
Stevenson Jacob D.
Taylor Stephen R.
No associations
LandOfFree
Limits to the expansion of earth, moon, Mars and Mercury and to changes in the gravitational constant does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Limits to the expansion of earth, moon, Mars and Mercury and to changes in the gravitational constant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits to the expansion of earth, moon, Mars and Mercury and to changes in the gravitational constant will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-945869