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The 1932 unequal-arm interferometer test constrained changes in light speed associated with Earth’s changing velocity and, together with Michelson–Morley, tested Lorentz transformations.
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The null result constrained velocity-dependent light propagation and supported Lorentz-Einstein transformations.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
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