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Gears for Nemesis by Raymond Z. Gallun:
Science Fiction Inventions, Technology and Ideas
"There Was One Way to Save the Day for the Passengers of the Trail Blazer-and That Was to Give Them Both Day and Night!"
('Gears for Nemesis' by Raymond Z. Gallun)
High school physics teachers will readily solve the puzzle of how to save the crew of a spaceship stuck on a tidally-locked planetoid - read it here. Select an invention:
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