2009/12/20 by D. Y. Gezari, Daniel Y. Gezari, Gezari, Daniel Y. · 2 citations
Medicine · Physics and Astronomy · #Biofield Effects and Biophysics #FOS: Physical sciences #General Physics (physics.gen-ph) #Quantum Mechanics and Applications #Relativity and Gravitational Theory #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.0912.3934
16 pages, 4 figures, submitted to Il Nuovo Cimento
openalex publication_date 2009/12/20 · arxiv created 2010/06/22 · arxiv updated 2010/06/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The speed of laser light pulses launched from Earth and returned by a retro-reflector on the Moon was calculated from precision round-trip time-of-flight measurements and modeled distances. The measured speed of light (c) in the moving observers rest frame was found to exceed the canonical value c = 299,792,458 m/s by 200+/-10 m/s, just the speed of the observatory along the line-of-sight due to the rotation of the Earth during the measurements. This is a first-order violation of local Lorentz invariance; the speed of light seems to depend on the motion of the observer after all, as in classical wave theory, and implies that a preferred reference frame exists for the propagation of light. However, the present experiment cannot identify the physical system to which such a reference frame might be tied.