Michelson-Morley Data
Over a period of about 50 years, the Michelson-Morley experiment was repeated with growing levels of sophistication. The overall result is a high level of confidence that the wavelength shift is consistent with zero.
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| L (cm) | Calculation | Observation | Ratio |
| Michelson, 1881 | 120 | .04 | .02 | 2 |
| Michelson & Morley 1887 | 1100 | .40 | .01 | 40 |
| Morley & Miller, 1902-04 | 3220 | 1.13 | .015 | 80 |
| Illingworth, 1927 | 200 | .07 | .0004 | 175 |
| Joos,1930 | 2100 | .75 | .002 | 375 |
Shankland, et al., Rev. Mod. Phys. 27, 167 (1955)
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Index
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