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Willem de Sitter - Is the density anywhere near that...
Is the density anywhere near that corresponding to the static universe, or is it so small that we can consider the empty universe as a good approximation? (Willem de Sitter)

Is the density anywhere near that corresponding to the static universe, or is it so small that we can consider the empty universe as a good approximation?

Willem de Sitter

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approximation corresponding density empty good near small static universe

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