Historical eclipses and the earth's rotation

@article{Stephenson2000HistoricalEA,
  title={Historical eclipses and the earth's rotation},
  author={Stephenson and Morrison},
  journal={Science progress},
  year={2000},
  volume={83 (Pt 1)},
  pages={
          55-76
        }
}
Ancient eclipse observations are proving of considerable value in modern geophysics. These seemingly crude observations enable variations in the length of the day--produced by tides and other mechanisms--to be investigated in some detail over more than two millennia. The main attraction of the early data is the long time scale which they cover. They reveal long-term trends which cannot be discerned from the much more accurate telescopic observations. Useful historical records of eclipses… Expand

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