Sentence Examples


  • The latter are in fact little microscopes carrying a vernier etched on glass, in lieu of a filar micrometer.
  • 7) is given in Bontemps's Guide du vernier, pp. 602-612.
  • A micrometer drum reads to 2', while the vernier reads to single minutes so that very fine adjustments can be made.
  • Now, if a graduated circle B B is attached to the declination axis, together with the necessary verniers or microscopes V V for reading it (see Transit Circle), so arranged that when the telescope is turned on the declination axis till its optical axis is parallel to A A the vernier reads 0° and when at right angles to A A 90°, then we can employ the readings of 2 Herschel, Phil.
  • If we now attach to the polar axis a graduated circle D D, called the" hour circle,"of which the microscope or vernier R reads o h when the declination axis is horizontal, we can obviously read off the hour angle from the meridian of any star to which the telescope may be directed at the instant of observation.

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