Transcription: This involved a simple electrical circuit. When this was switched on, it lowered a ramp from the spacecraft, so allowing the astronauts an easy exit. I persuaded my colleagues that they should apply the same principle to larger pieces of metal. Then, by using stronger electrical currents, they could create a device that would guide the balls around my third great work. Initial progress of this venture was painfully slow, and for reasons unknown to me, the astronauts were reluctant to fulfill my wishes. Indeed, they were far more concerned with the sudden attraction of metal objects that accomp ...
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