Slide Rule, William J. Powell, ca. 1930s. Creator: Keuffel & Esser Co
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Slide Rule, William J. Powell, ca. 1930s. Creator: Keuffel & Esser Co
During the 1920s William J. Powell led a small group of black air enthusiasts in Los Angeles. He established the Bessie Coleman Flying Club in 1929 and sponsored the first all-black air show on Labor Day 1931. As part of his effort to make aviation accessible to African American students, he taught classes on aeronautics at the Bessie Coleman Flying Club. This slide rule was among the equipment he used while teaching
Media ID 23871939
© Heritage Art/Heritage Images
Aeronautics Air And Space Museum Arithmetic Aviation Flight Mathematics Maths Nasm National Air And Space Museum Powell William J
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