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.
For the training site, the War Department chose the Tuskegee Army Air Field in Tuskegee, Alabama, then under construction. Home to the prestigious Tuskegee Institute, founded by Booker T. Washington, it was located in the heart of the Jim Crow South.