Didn’t the Michelson and Morley experiment return a null result?

Posted by Steven Bryant On February - 6 - 2009

 No. Unfortunately, may modern textbooks represent the Michelson and Morley experiment as having returned a null result. Michelson and Morley indicated that they detected a velocity of 1/6th to 1/4th of their expected result of 30 km/s, or about 5 to 7.5 km/s. Since SRT requires the Michelson and Morley experiment to return null, this result is accepted as experimental error.  However, this experimental error is not supported mathematically since 0 km/s falls outside of the experiments statistical 99..9% confidence range.

The re-evaluation of the Michelson and Morley results, corrected for 1) comparison of actual results measured in relative terms against an expected result calculated using absolute terms, 2) for the distinction between wavelength and length, and 3) for adjusting so that the expected result and actual result represent the same rotational angle of the device, changes their result to 32 km/s. These results, are confirmed by evaluating Miller’s repeat experiment to yield a result of 30 km/s.

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