On the international space station for example. People are up there for a long long time, where does all the air come from? It's not like they do air deliveries every so often, so how do they keep breathing? Surely there isn't enough space on the space station to store enough air to last them for months.
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[quote][b]Posted by:[/b] r c takedown [quote][b]Posted by:[/b] DAS B00T x2 I bet they have like, tiny trees in the rooms, or something.[/quote] It's so obvious now! That's pretty clever. [/quote]You do realize that even though trees produce oxygen, [b]they don't produce enough breathable air by themselves to support human passengers, much less than the 7 man crew of a space shuttle.[/b] [Edited on 01.05.2013 8:46 PM PST]