Reply to 'The principle of relativity and inertial dragging' by Oyvind G. Gron [Am. J. Phys. 77 (4), 373-380 (2009)]

摘要

Gr_n argues that many "Machin" expectations are fulfilled in a very slowly rotating shell-like universe with "perfect dragging." We note that Mach addressed situations for which this perfect dragging universe is irrelevant. It is a bubble in a universe endowed with "absolute space" features and the rotation of such a bubble can be detected in principle. Thus Gr_n's slowly rotating shell-like universe with "perfect dragging" does not satisfy Mach's principle.