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Text File  |  1992-09-02  |  264b  |  8 lines
  1. 1693-1762. English astronomer, who in 1728
  2. discovered the aberration of starlight. From
  3. the amount of aberration in star positions,
  4. he was able to calculate the speed of light.
  5. In 1748, he announced the discovery of
  6. nutation (variation in the Earth's axial
  7. tilt).
  8.