To Measure the Rotation of the Earth

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Scientific Paper
Title To Measure the Rotation of the Earth
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Author(s) John-Erik Persson
Keywords {{{keywords}}}
Published 2010
Journal Proceedings of the NPA
Volume 7
No. of pages 2
Pages 363-364

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This idea comes from a test with atomic clocks connected over some kilometers with coaxial cables. Dr Su[1] suggested scaling down and connecting two gas lasers over a few meters with single mode optical fibers. The equipment is mounted on a slowly rotating platform with high mechanical stability. The measurements are made in such a way as to making a constant and small frequency difference between lasers irrelevant.