The fiber optic interferometer has effectively proven that Special Relativity is incorrect! The propagation of light requires the ether, and the ether is completely dragged by the Earth. We hope that our research will bring new perspectives to our peers and actively promote the research and application of optical theories.
Special Relativity has been erroneously in existence for 100 years, starting from MMX and ending at Sagnac. Although this is difficult to accept, we must confront it.
Preprint Investigating the Sagnac Effect