Great Minds: Katherine Johnson, Human Computer

In the early days of spaceflight, if NASA needed to plot a rocket’s path or confirm a computer’s calculations, they knew who to ask: Katherine Johnson.
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Sources:
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https://www.nasa.gov/audience/foreduc...
http://www.theknowledgeworld.com/worl...
http://history.nasa.gov/SP-4029/Apoll...
http://www.visionaryproject.org/johns...
http://www.braeunig.us/space/orbmech....
http://www.sunriseseniorliving.com/bl...
http://history.nasa.gov/afj/launchwin...
https://www.aip.org/sites/default/fil...
http://www.scottcarpenter.com/MA-7%20...