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The Problem of Space Travel is pretty interesting. The US government has reprinted it as NASA SP-4026 in the recent past. Noordung didn't do rockets as well as
by bediger4000 3y ago
The Problem of Space Travel is pretty interesting. The US government has reprinted it as NASA SP-4026 in the recent past.
Noordung didn't do rockets as well as he did space stations, but his station is pretty sweet, in a geosynchronous orbit at Berlin's longitude.