The Sagnac experiment and its successful application to yield a commercial laser fiber ring inteferometric gyroscopic compass shows that the velocity of light c is fixed relative to geocentric coordinates or the magnetosphere. Einstein's postulate that the velocity of light is c with respect to any observer is modified.
Also published in:
- Progress in Space-Time Physics, Paul Wesley (Editor), pp. 49-50 (1987).
- Speculations in Science and Technology, V11, N3, p. 214 (1988).
- Toth-Maatian Review, V1, N2, pp. 2907-2908 (1988).