A seismic wave is simply a means of transferring energy from one spot to another within the earth. Although seismologists recognize different types of waves, we are interested in only two types: P (primary) waves, which are similar to sound waves, and S (secondary) waves, which are a kind of shear wave.
Several committees divide their work into sub units called subcommittees. The Senate currently has 16 standing committees, and 4 permanent select or special committees. The House has 19 standing committees and 3 permanent select committees. Committee sizes range from 6 to 50 members per committee. In the House, one person may not serve on more than two standing committees and four subcommittees at one time, though waivers can be granted to serve on additional committees.
The Senate established the body's original standing committees, including the Senate Judiciary Committee, in a resolution adopted on December 10, 1816. The United States House of Representatives Committee on Judiciary had been established three years prior. The first chairman of the committee was Senator Dudley Chase of Vermont, who was appointed and served during the second session of the 14th Congress.