In the classic 1913 science-fiction novel At the Earth’s Core, by Edgar Rice Burroughs, explorers discover that the earth is a hollow sphere and that an entire civilization lives on the inside of the sphere. Would it be possible to stand and walk on the inner surface of a hollow, nonrotating planet?
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In the classic 1913 science-fiction novel
At the Earth’s Core, by Edgar Rice Burroughs, explorers discover that the earth is a hollow sphere
and that an entire civilization lives on the inside of the sphere. Would it be possible to stand and
walk on the inner surface of a hollow, nonrotating planet?
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