Thermistor
New Lister
Ms Johnson had previously calculated the trajectory for the space flight of Alan Shepard - the first American in space.
Such was her skill and reputation that Glenn had asked for her specifically and had refused to fly unless she verified the calculations. She also helped to calculate the trajectory for the 1969 Apollo 11 flight to the Moon.
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Such was her skill and reputation that Glenn had asked for her specifically and had refused to fly unless she verified the calculations. She also helped to calculate the trajectory for the 1969 Apollo 11 flight to the Moon.

Katherine Johnson: Hidden Figures Nasa mathematician dies at 101
Ms Johnson, who helped launch the first American into orbit, was portrayed in the film Hidden Figures.
