A seismoscope records the motions of Earth's shaking, but unlike a seismometer, it does not retain a time record of those motions.
42.
The first three attempts by the U . S . to perform a successful hard moon landing with a ruggedized seismometer package in 1962 all failed.
43.
Most stations operate the Trillium 120PA broadband seismometer with a Reftek-147 accelerometer while others continue to operate the Guralp CMG-40T broadband seismometer.
44.
Most stations operate the Trillium 120PA broadband seismometer with a Reftek-147 accelerometer while others continue to operate the Guralp CMG-40T broadband seismometer.
45.
The evidence came from seismometer readings that the United States had gathered in secret and never made public, and the charge appears to have been false.
46.
Using an electromagnetic seismometer for the detection and measurement of ground tremors, Palmieri was able to detect very slight movements in trying to predict volcanic eruptions.
47.
In 1930 a seismometer from Gonzaga University was moved to a basement laboratory at Mount St . Michael, where seismologists kept careful records of seismic activity.
48.
In the 1920s he co-developed the torsion seismometer, a device tuned to detect short-period seismic waves that are associated with local earthquakes.
49.
On April 18, a portable seismometer began to record much stronger volcanic tremors that indicated a change in eruptive style from lava fountains back to Strombolian activity.
50.
One of his most recent accomplishments was a refined version of the old Benioff seismometer which has given seismologists more knowledge about the cause of very deep earthquakes.
