Engineering, end to end

Five questions a day from across the work that takes a system from first model to field operation, drawn from the history, standards and physics of the field. Each day leads with a different discipline. Everyone gets the same set, and a new one arrives at 00:00 UTC. Each answer cites its source.

Want to see the physics move? Fly a radar pass and form a SAR image in Aperture, a simulation on the demos page.