Walter S. McAfee is the African American mathematician and physicist who first calculated the speed of the moon. McAfee participated in Project Diana in the 1940s - a U.S. Army program, created to determine whether a high frequency radio signal could penetrate the earth’s outer atmosphere. To test this, scientists wanted to bounce a radar signal off the moon and back to earth. But the moon was a swiftly moving target, impossible to hit without knowing its exact speed.
dandridgelove: Dorothy Dandridge, Joyce Bryant, Lena Horne, and Diahann Carroll are legendary women who continue to inspire and captivate generation after generation with their magnificent beauty and talents!
Vivien Thomas, African-American surgical technician who developed the procedures used to treat blue baby syndrome in the 1940s. Thomas was also offered the position of Chief of Surgery at his alma mater, Johns Hopkins in 1941.