Random FactsCuriousOneDecember 07, 2016Before, calculator, computers, fact, facts, human, johnson, katherine, nasa, rocket, staycurious, trajectoryComment Katherine Johnson worked for NASA as a trajectory calculator, before computers Random FactsCuriousOneDecember 07, 2016Before, calculator, computers, fact, facts, human, johnson, katherine, nasa, rocket, staycurious, trajectoryComment
