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.
Across the landscape of the most anguished era of American race relations (1895-1915) strode the self-assured and influential Booker T. Washington. The foremost black educator, power broker, and institution builder of his time, Washington in 1881 founded Tuskegee Institute, a black school in Alabama devoted to industrial and moral education and to the training of public school teachers.