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Beschreibung:
Corona featured an evolving series of marvelously sophisticated cameras that used a special polyester film base designed just for the program - though we all use it now, under its later name "mylar". After the cameras photographed the world from polar orbit, the exposed film was jettisoned back to earth near Hawaii, in a capsule fitted with a parachute designed to be snagged
by special planes.
The capsules were designed to float, so that if the plane missed, Navy boats could retrieve them. In case the boats missed, the capsules were fitted with salt plugs that would dissolve after two days in the ocean, causing the capsule to sink beneath the waves, so the film could never fall into enemy hands. |
