Golf clubhead with a high polar moment of inertia United States Patent 4999000 Abstract: A golf clubhead comprises a body having a predetermined lower density and a head weight means is of a predetermined higher density. There is also a toe weight means of the portion of the head weight mea...
together determine the absolute position relative to the geodynamo: plate tectonic motions relative to the mantle, and the combined rotation of lithosphere and mantle relative to the spin axis due to changes in Earth's moment of inertia, i.e., True Polar Wander (TPW) (Gold, 1955) (Fig. ...
(LLSVP) and the antipodal Pacific LLSVP, where these largest mass anomalies on the planet tend to control the TPW axis defined by Earth’s equatorial minimum moment of inertia37. However, updated APWPs led to a revised model of this TPW event as having a steady phase between 195 and 150...
The latter component, commonly referred to as TPW, arises from the gradual redistribution of density heterogeneities within the mantle and corresponding changes in the planetary moment of inertia (Goldreich and Toomre, 1969, Steinberger and Torsvik, 2010). To establish Conclusions and future outlook ...