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Rigorous Science How big can the Parachute cities be?

Nobody knows where the big Blue is. Some people say it's a dream. Some people say it's the space between the worlds, where all the things that fall through the cracks end up. The occasional rains o...

3 answers  ·  posted 9y ago by Joe Bloggs‭  ·  last activity 8y ago by Joe Bloggs‭

Question hard-science