1. Astronauts insert a crank handle into the hub and rotate it to move cams and latches on the back side of the door. 2. At the same time, another astronaut will insert a thin needle with an electronic amplifier into a nerve behind the leg. 3. The hatch is designed to open when astronauts insert a crank handle into the gear hub and rotate it. 4. While the procedure was under way, another astronaut inserted a hair-thin needle with an electrode into a nerve in the leg muscle. |
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