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.
Seismometers are instruments that measure motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources.Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources.t is often used to mean seismometer, though it is more applicable to the older instruments in which the measuring and recording of ground motion were combined than to modern systems, in which these functions are separated.