Part II dives into the legislative histories of the 1866 Civil Rights Act and the Fourteenth Amendment. The 39th Congress understood itself as having the power to define the privileges and immunities of national citizenship, which in the Civil Rights Act included benefits typically regarded as nonfederal.
The study of seismic waves is known as seismology, a word derived from a Greek word meaning to shake.. Seismographs are the instruments which record earthquakes. Scientists use these instruments as their principal tool to study seismic waves. They are very sensitive instruments that can detect, measure and record ground vibrations and their intensities during an earthquake. A seismograph is a simple pendulum.
A seismograph, or seismometer, is an instrument used to detect and record seismic waves.Seismic waves are propagating vibrations that carry energy from the source of an earthquake outward in all directions. They travel through the interior of the Earth and can be measured with sensitive detectors called seismographs.ideo: How a seismograph works. The magnitude of an earthquake is determined by readings of the seismic waves resulting from the vibrations generated by the seismic source. Sensitive seismographs, which greatly magnify these ground motions, can detect strong earthquakes from sources anywhere in the world.