Foucault pendulum at the south pole - Proposal for an experiment to detect the earth's general relativistic gravitomagnetic field

Details Foucault pendulum at the south pole - Proposal for an experiment to detect the earth's general relativistic gravitomagnetic field Foucault pendulum at the south pole - Proposal for an experiment to detect the earth's general relativistic gravitomagnetic field

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvl..53..863b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 53, Aug. 27, 1984, p. 863-866. Research supported by the Akademiia Nauk SSSR anad

Astronomy and Astrophysics

Astronomy

39

Antarctic Regions, Geomagnetism, Gravitation Theory, Gravitational Fields, Gyroscopic Pendulums, Relativistic Effects, Atmospheric Refraction, Damping, Earth Rotation, Fourier Transformation, Inertial Coordinates, Precession, Seismology

Scientific paper

An earth-based variant of the orbiting superconducting-gyroscope suggested by Calloway and Rahman (1982) as a detector of the general-relativistic gravitomagnetic field is proposed. The gyroscope is replaced by a Foucault pendulum linked to an astrometric telescope in a vacuum chamber at the South Pole. The effects of velocity-dependent and position-dependent forces, magnetic forces, frictional damping, Pippard precession, frequency anisotropy, seismic noise, atmospheric refraction, and telescope distortion and tilt are calculated; an accuracy of 10 percent over an observing time of seveal months is predicted; and the need for further laboratory studies to ascertain if the difficulties of the experiment can be overcome is indicated.

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