Observation of 1990 solar eclipse by a torsion pendulum

Phys. Rev. D 44, 2611 – Published 15 October 1991
Luo Jun, Li Jianguo, Zhang Xuerong, V. Liakhovets, M. Lomonosov, and A. Ragyn


During the solar eclipse of 22 July 1990 in the city of Bielomorsk of the U.S.S.R., we repeated the torsion pendulum experiment of Saxl and Allen, who reported an anomalous period increase during the solar eclipse of 7 March 1970. The relative change in the pendulum's period associated with the eclipse was found to be less than 5.2×10-5 (90% confidence).

DOI: http://dx.doi.org/10.1103/PhysRevD.44.2611

  • Received 12 December 1990
  • Published in the issue dated 15 October 1991

© 1991 The American Physical Society

Authors & Affiliations

Luo Jun, Li Jianguo, and Zhang Xuerong

  • Huazhong University of Science and Technology, Wuhan, China

V. Liakhovets

  • Patrice Lumumba Peoples Friendship University, Moscow, U.S.S.R.

M. Lomonosov and A. Ragyn

  • Krasnopresnenskaya Observatory, Sternberg Astronomical Institute, Moscow, U.S.S.R.

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