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.
Mrs. Roosevelt was so. impressed with the program that she established and maintained a long-term, long-distance friendship with some of the pilots. From 1941 to 1946 over 2,000 African Americans completed training at the Tuskegee Institute, nearly three quarters of the. qualified as pilots.