Sentence Examples


  • Points on the same curve are supposed to have the same average number of auroras in the year, and this average number is shown adjacent to the curve.
  • In other words, auroras are much more numerous in the southern parts of Canada and in the United States than in the same latitudes of Europe.
  • Starting at the extreme north, we have a simple period with a well-marked maximum at midwinter, and no auroras during several months at midsummer.
  • In southern Europe - where, however, auroras are too few to give smooth results in a limited number of years - in southern Canada, and in the United States, the difference between the winter and summer months is much reduced.
  • The total number of auroras in the year is taken as 100, and t denotes the time, in months, that has elapsed since the middle of January.

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