Katherine Johnson, NASA Mathematician Dies at 101

African American mathematician Katherine Johnson began working at the National Advisory Committee for Aeronautics in 1953 in a position that was classified as “subprofessional,” not far outranking a secretary or janitor. Nevertheless she persisted: using a slide rule or mechanical calculator in complex calculations her job was to check the work of her superiors — engineers who, unlike her, were [...]

2020-02-25T10:37:48+00:00February 25th, 2020|Uncategorized|