Two new editions have been published on Amazon. In Seeing Gravity, the chapter on curvature has been over-hauled, and emphasis has been placed on the role of non-Eclidean geometries, whether due to nonlinearities in the metric coeffcients of translantion and rotation. A key point is the relationship between the angle of parallelism and the Joukowski ellipse which transforms circles into ellipses. The role of the cuspoidal equator and cusps in say things like epicycles is dealt with.
In the Physics of Graviation, a new format has been provided making it easier to read. Seen as an extension to Seeing Gravity has been made more explicit.
コメント