Sentence Examples

  • The subject of the lunar librations was treated by Lagrange w i th great originality in an essay crowned by the Paris Academy of Sciences in 1764; and he filled up the lacunae in his theory of them in a memoir communicated to the Berlin Academy in 1780.
  • His last telescopic discovery - that of the moon's diurnal and monthly librations - was made in 1637, only a few months before his eyes were for ever closed in hopeless blindness.

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