BLACK HISTORY: Valerie Thomas, African-American scientist & inventor contributes to NASA
Valerie Thomas was an African-American scientist and inventor best known for her patented illusion transmitter and contributions to NASA research.
Valerie Thomas – As a child, Valerie Thomas became fascinated with the mysteries of technology, tinkering with electronics with her father and reading books on electronics written for adolescent boys. The likelihood of her enjoying a career in science seemed bleak, as her all-girls high school did not push her to take advanced science or math classes or encourage her in that direction. Nonetheless, her curiosity was piqued and upon her graduation from high school, she set out on the path to become a scientist.
Thomas enrolled at Morgan State University and performed exceedingly well as a student, graduating with a degree in physics (one of only two women in her class to do so). She accepted a position with the National Aeronautics and Space Administration (NASA), serving as a data analyst. After establishing herself within the agency, she was asked to manage the “Landsat” project, an image processing system that would allow a satellite to transmit images from space.
In 1976 Thomas attended a scientific seminar where she viewed an exhibit demonstrating an illusion. The exhibit used concave mirrors to fool the viewer into believing that a light bulb was glowing even after it had been unscrewed from its socket. Thomas was fascinated by what she saw, and imagined the commercial opportunities for creating illusions in this manner.
In 1977 she began experimenting with flat mirrors and concave mirrors. Flat mirrors, of course, provide a reflection of an object which appear to lie behind the glass surface. A concave mirror, on the other hand, presents a reflection that appears to exist in front of the glass, thereby providing the illusion that they exist in a three-dimensional manner. Thomas believed that images, presented in this way could provide a more accurate, if not more interesting, manner of representing video data. She not only viewed the process as a potential breakthrough for commercial television, but also as scientific tool for NASA and its image delivery system.
