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 April 1941, months before the United States entered World War II, Eleanor Roosevelt visited Tuskegee Army Air Field in Alabama, where the Tuskegee airmen had begun training. Charles âChiefâ Anderson, Tuskegeeâs chief flight instructor at the time, offered to take the first lady around the field.