Black History Month–Day 15

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In honor of Black History Month, here are few profiles of contributors to history of African descent:

Percy L. Julian

One of the most important scientists of the 20th century, Julian was one of the first to harness the power of plants using the process of synthesis. Synthesis was critical to the medical industry because it allowed scientists to create chemicals that were rare in nature. The chemist’s work led to the birth control pill and improvements in the production of cortisone. In 2007 PBS’s NOVA made a documentary on his life called Forgotten Genius

Valerie Thomas

Inventor of the Illusion Transmitter

Valerie ThomasDid you ever think of what it might be like if your television could project the on-screen image directly into your living room as a 3-Dimensional image? Maybe not, but if it happens, you’ll have African-American inventor Valerie Thomas to thank for it.
From 1964 to 1995, Thomas worked in a variety of capacities for NASA where she developed real-time computer data systems, conducted large-scale experiments and managed various operations, projects and facilities. While managing a project for NASA’s image processing systems, Thomas’ team spearheaded the development of “Landsat,” the first satellite to send images from space.

In 1976, Thomas learned how concave mirrors can be set up to create the illusion of a 3-dimensional object. She believed this would be revolutionary if technology could be harnessed to transmit this illusion. With an eye to the future, Valerie Thomas began experimenting on an illusion transmitter in 1977. In 1980, she patented it. In operation, concave mirrors are set up on both ends of the transmission. The net effect of this is an optical illusion of a 3-dimensional image that looks real on the receiving end. This brilliant innovation placed Thomas among the most prominent black inventors of the 20th century.
NASA continues to use her technology and is exploring ways to use it in surgical tools and possibly television and video

Thanks to Tanisha and Bryan Jones and their daughter Sinai for compiling these profiles from the following sources:

1) The Encyclopedia of African-American Heritage, by Susan Altman
2) The Roots website, theroots.com
3) Famous Black Inventors website, black-inventor.com