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Question: what thickness of space-craft aluminum would be needed to protect occupants on a round trip to the Moon? Show your calculations, especially for the crossings of the Van Allen radiation belt.
Laurie
J. Clarke
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Aug 9, 2011, 4:39:15 PM8/9/11
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Protect the occupants from what? From your mention of "Van Allen radiation belt" one assumes that you mean from radiation. If so the answer is "none, unless you're stupid enough to fly the thing through the Van Allen radiation belt".