By Robert Salkeld, Astronautics and Aeronautics, September, 1975. | Cheap Nursing Papers

By Robert Salkeld, Astronautics and Aeronautics, September, 1975.

By Robert Salkeld, Astronautics and Aeronautics, September, 1975. Precursors of the notion of small self-contained worlds in space appeared in novels by Jules Verne in 1878 and Kurd Lasswitz in 1897 (refs. The following quotation on the history of the idea of space colonization is taken with permission directly from Space Colonization Now?

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