Physics
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980m%26p....22...13l&link_type=abstract
(Laboratorio di Astrofisica Spaziale di Frascati, European Workshop on Planetary Sciences, Rome, Italy, Apr. 23-27, 1979.) Moon
Physics
5
Earth Tides, Earth-Moon System, Gravitational Effects, Lunar Tides, Acceleration (Physics), Celestial Mechanics, Friction, Moments Of Inertia, Secular Variations
Scientific paper
Serious errors contained in Jeffreys' (1952, 1959, 1970, 1976) discussion of tidal friction in the earth-moon system are identified and their consequences are discussed. A direct solution of the dynamical tidal equations for the couple from the earth acting upon the moon and the couple from the earth acting upon the sun, which were left unsolved by Jeffreys, is found to be incompatible with observations and the predictions of linear or quadratic friction theory, due to his failure to take into account the possible change of the moment of inertia of the earth with time in the derivation of the dynamical equations. Consideration of this factor leads to the conclusion that the earth must be contracting at a rate of 14.7 x 10 to the -11th/year, which can be accounted for only by the Ramsey theory, in which the terrestrial core is considered as a phase change rather than a change in chemical composition. Implications of this value for the rates of changes in day length and lunar distance are also indicated.
No associations
LandOfFree
Tidal-friction theory of the earth-moon system 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 Tidal-friction theory of the earth-moon system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tidal-friction theory of the earth-moon system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1621449