Sentence Examples


  • Indeed, in those days, the difficulties attached to such measures, and to the measurement of distances with the filar micrometer, were exceedingly great, and must have taxed to the Utmost the skill and patience of the observer.
  • The Modern Filar Micrometer.
  • When equatorial mountings for telescopes became more general, no filar micrometer was considered complete which was not fitted with a position circle.'
  • The use of the spider line or filar micrometer 1 In 1782 (Phil.
  • A still further facility was given to the use of the filar micrometer by the introduction of clockwork, which caused the telescope automatically to follow the diurnal motion of a star, and left the observer's hands entirely at liberty.'
 

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