Precise measurement of gravity variations during a total solar eclipse

  title={Precise measurement of gravity variations during a total solar eclipse},
  author={Qian-shen Wang and X. Yang and Chuanjia Wu and Hong-gang Guo and Hong-chen Liu and Chang-chai Hua},
  journal={Physical Review D},
The variations of gravity were measured with a high precision LaCoste-Romberg D gravimeter during a total solar eclipse to investigate the effect of a solar eclipse on the gravitational field. The observed anomaly $(7.0\ifmmode\pm\else\textpm\fi{}2.7)$$\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}8}$ ${\mathrm{m}/\mathrm{s}}^{2}$during the eclipse implies that there may be a shielding property of gravitation. 

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mins) g ra vi ty v ar ia tio n
  • Europhys. Lett.,
  • 1996
mins) g ra vi ty v ar ia tio n (1 0 −8 m /s 2 ) ↑ 1st contact ↑ 4th contact
  • Europhys. Lett.,
  • 1996