michelson-morley-1 Published January 15, 2016 at 500 × 328 in Michelson-Morley Experiment Michelson and Morley’s interferometric setup, mounted on a stone slab that floats in an annular trough of mercury. Michelson and Morley’s interferometric setup, mounted on a stone slab that floats in an annular trough of mercury.