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Georgia L. Irby-Massie

Greek polymath who worked in mathematics, astronomy, and mechanics. He is especially famous for descriptions of automata (air-, water-, and steam-powered mechanical devices) and steam-powered aeolipiles. “Hero’s engine,” deriving from Ctesibius of Alexandria’s design (290250 bce), is the first device to transform steam into rotary motion. The aeolipile consists of a hollow sphere attached by pipes to an enclosed water-filled cauldron. When the cauldron is heated, the sphere spins on a pivot as it releases steam (Pneumatics 50).

Hero’s much disputed floruit was pinpointed by Neugebauer (1975, 846), who noted that Hero used eyewitness evidence of a lunar eclipse of 62 ce, visible from both Rome and Alexandria, to calculate the distance between those two cities (Dioptra 35). Making no use of Ptolemy of Alexandria (127after 146 ce Hero likely predated Ptolemy Neugebauer Very little is known of Hero s life His mathematical corpus ...


Pamela C. Edwards

physicist, space scientist, and mathematician, was born in White Sulphur Springs, West Virginia. Johnson started attending the local elementary school, but in the 1920s and 1930s, the public school system in White Sulphur Springs did not provide educational opportunities for black children beyond the eighth grade. In a 1997 interview with the Richmond Post-Dispatch, Johnson recalled that her parents were determined to give their children every educational opportunity and moved to Institute, West Virginia—120 miles away—in September of every year so that Johnson and her siblings could attend school. Johnson attended West Virginia State College, where she earned a BS in French and Mathematics and explored her interests in physics. Graduating summa cum laude in 1937, she taught high school and elementary school in southwest Virginia before going to work for NASA.

In 1953 Johnson joined NASA s Langley Research Center in Hampton Virginia ...


'Kale Oyedeji

mathematician, theoretical physicist, and university professor, was born in Petersburg, Virginia, the son of Joseph Percivall Mickens, a carpenter, and Daisy Brown Williamson, a house wife. His twin brothers Calvin and Carroll were born a year later on 13 February 1944. As a child, Mickens's interest in mathematics and science was sparked by his maternal grandfather who taught him to read and write, and discussed the nature of science. As a consequence, in high school, he enrolled in all of the available courses in these areas. After graduation from Peabody High School, in 1960, he entered Fisk University where in 1964 he completed a BA in Physics with a minor in mathematics. Mickens continued his education at Vanderbilt University and earned a doctoral degree in Theoretical Physics in August 1968. From 1968 to 1970 he continued his research in high energy ...


Ronald E. Mickens

mathematician and engineer, was born in Chicago, the son of J. Ernest Wilkins, a prominent lawyer, and Lucile Beatrice Robinson, a schoolteacher with a master's degree. Wilkins developed an intense interest in mathematics at an early age, and with the encouragement and support of his parents and a teacher at Parker High School in Chicago, he was able to accelerate his education and finish high school at the age of thirteen. After graduation, he was immediately accepted by the University of Chicago, where he was the youngest student ever admitted by that institution. Within five years, Wilkins received three degrees in Mathematics, a BA in 1940, an MS in 1941, and a PhD in 1942. He was also inducted into Phi Beta Kappa in 1940 and Sigma Xi, the Scientific Research Society, in 1942 While at the university he was university table tennis champion ...