::: Yes, the M-M experiment was repeated many times. It had to be done at different times of the year, at different altitudes, with different materials, etc. Eg, maybe the length contraction might have been different for wood and brass. | ::: Yes, the M-M experiment was repeated many times. It had to be done at different times of the year, at different altitudes, with different materials, etc. Eg, maybe the length contraction might have been different for wood and brass. |