Katherine Johnson gives a speech about how she has to travel half a mile just to use the bathroom because of the lack of coloured bathrooms in the office building she works in. She indicates that she isn't treated equally as as a result.
The team at NASA is trying to launch a capsule and bring it back to Earth. To do so, they need to calculate its change in trajectory as it moves from an elliptical orbit to a parabolical orbit. Katherine discovers that they can use Euler's Method to approximate the change in trajectory.