Historic Pictures on Instagram: "Scientists use ladders and a large chalkboard to work out equations for satellite orbits at Systems Labs, California, 1957. Before the days of computers, employees at NASA would have to go about conveying their knowledge in a much more laborious way: chalk, board, and likely tears.
The scientists used math and physics to calculate complex spacecraft trajectories, navigation and the orbits or spacecraft, and much more. The calculations were tedious and...
