Waves can also be separated into transverse and longitudinal waves. In a transverse wave, the motion of the particles of the medium is at right angles (i.e., transverse) to the direction the wave moves.
The experiment's name comes from the Tuskegee Institute, the black university founded by Booker T. Washington. Its affiliated hospital lent the PHS its medical facilities for the study, and other predominantly black institutions as well as local black doctors also participated.
In 1881, upon the recommendation of the founder of Hampton, Washington was asked to go to Alabama to start another industrial school. When Booker T. Washington arrived in Tuskegee, Alabama, he was surprised to find that no provisions had been secured for purchase of land or buildings.