Feasibility of establishing a light-wave as the ultimate standard of length

@article{MichelsonFeasibilityOE,
  title={Feasibility of establishing a light-wave as the ultimate standard of length},
  author={A. A. Michelson and E. W. Morley},
  journal={American Journal of Science},
  volume={s3-38},
  pages={181 - 185}
}
  • A. A. Michelson, E. W. Morley
  • Geology
  • American Journal of Science
  • IN the problem of making a light wave a practical standard of length, it is desirable to use as an intermediate standard a metal bar bearing two plane surfaces at the greatest distance apart at which interference (between two pencils having this difference of path) is accurately measurable. Some preliminary experiments have shown that in the case of the green mercury wave the distance may be a fourth of a meter. To keep well within limits, however, it is safe to say that an intermediate… CONTINUE READING
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