Sentence Examples

  • Instruments largely employed for this purpose in Italy are ordinary pendulum seismographs as in fig.
  • The next class of instruments to be considered are seismometers or earthquake measurers, and seismographs or instruments which Se give diagrams of earthquake motion.
  • The essential feature in these seismographs is a fairly heavy mass of metal, so suspended that although its supports are moved, some point in the mass remains practically at rest.
  • The value of these records, as is the case with other forms of seismographs, is impaired by pronounced tiltings of the ground.

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